{"id":187334,"date":"2026-03-23T13:56:01","date_gmt":"2026-03-23T06:56:01","guid":{"rendered":"https:\/\/maotrung.com\/?p=187334"},"modified":"2026-04-04T14:03:43","modified_gmt":"2026-04-04T07:03:43","slug":"cach-tinh-do-doc-mai-ngoi","status":"publish","type":"post","link":"https:\/\/maotrung.com\/blogs\/kien-thuc-chung\/cach-tinh-do-doc-mai-ngoi-187334","title":{"rendered":"C\u00e1ch t\u00ednh \u0111\u1ed9 d\u1ed1c m\u00e1i ng\u00f3i chu\u1ea9n, d\u1ec5 hi\u1ec3u cho m\u1ecdi c\u00f4ng tr\u00ecnh"},"content":{"rendered":"<p style=\"text-align: justify;\">Ng\u00f4i nh\u00e0 b\u1ec1n \u0111\u1eb9p c\u1ea7n m\u00e1i nh\u00e0 c\u00f3 \u0111\u1ed9 d\u1ed1c chu\u1ea9n \u0111\u1ec3 tho\u00e1t n\u01b0\u1edbc nhanh v\u00e0 ch\u1ed1ng th\u1ea5m d\u1ed9t. Vi\u1ec7c n\u1eafm v\u1eefng c\u00e1ch t\u00ednh \u0111\u1ed9 d\u1ed1c gi\u00fap gia ch\u1ee7 ch\u1ee7 \u0111\u1ed9ng trong vi\u1ec7c chu\u1ea9n b\u1ecb v\u1eadt t\u01b0 v\u00e0 gi\u00e1m s\u00e1t thi c\u00f4ng. B\u00e0i vi\u1ebft n\u00e0y cung c\u1ea5p c\u00e1ch t\u00ednh \u0111\u1ed9 d\u1ed1c m\u00e1i ng\u00f3i v\u1edbi c\u00f4ng th\u1ee9c chi ti\u1ebft c\u00f9ng b\u1ea3ng tra c\u1ee9u ti\u00eau chu\u1ea9n cho t\u1eebng lo\u1ea1i ng\u00f3i m\u1edbi nh\u1ea5t hi\u1ec7n nay.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_78 counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">M\u1ee5c l\u1ee5c<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/maotrung.com\/blogs\/kien-thuc-chung\/cach-tinh-do-doc-mai-ngoi-187334\/#Nhung_diem_chinh\" >Nh\u1eefng \u0111i\u1ec3m ch\u00ednh<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/maotrung.com\/blogs\/kien-thuc-chung\/cach-tinh-do-doc-mai-ngoi-187334\/#1_Do_doc_mai_ngoi_la_gi\" >1. \u0110\u1ed9 d\u1ed1c m\u00e1i ng\u00f3i l\u00e0 g\u00ec?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/maotrung.com\/blogs\/kien-thuc-chung\/cach-tinh-do-doc-mai-ngoi-187334\/#2_Tai_sao_can_tinh_toan_do_doc_mai_ngoi_chinh_xac\" >2. T\u1ea1i sao c\u1ea7n t\u00ednh to\u00e1n \u0111\u1ed9 d\u1ed1c m\u00e1i ng\u00f3i ch\u00ednh x\u00e1c?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/maotrung.com\/blogs\/kien-thuc-chung\/cach-tinh-do-doc-mai-ngoi-187334\/#3_Cach_tinh_do_doc_mai_ngoi_chuan_ky_thuat_voi_cong_thuc_chi_tiet\" >3. C\u00e1ch t\u00ednh \u0111\u1ed9 d\u1ed1c m\u00e1i ng\u00f3i chu\u1ea9n k\u1ef9 thu\u1eadt v\u1edbi c\u00f4ng th\u1ee9c chi ti\u1ebft<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/maotrung.com\/blogs\/kien-thuc-chung\/cach-tinh-do-doc-mai-ngoi-187334\/#31_Cach_tinh_do_doc_mai_theo_ty_le_phan_tram\" >3.1. C\u00e1ch t\u00ednh \u0111\u1ed9 d\u1ed1c m\u00e1i theo t\u1ef7 l\u1ec7 ph\u1ea7n tr\u0103m<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/maotrung.com\/blogs\/kien-thuc-chung\/cach-tinh-do-doc-mai-ngoi-187334\/#32_Cach_tinh_do_doc_mai_theo_goc_alpha\" >3.2. C\u00e1ch t\u00ednh \u0111\u1ed9 d\u1ed1c m\u00e1i theo g\u00f3c alpha<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/maotrung.com\/blogs\/kien-thuc-chung\/cach-tinh-do-doc-mai-ngoi-187334\/#4_Bang_tieu_chuan_do_doc_cho_tung_loai_ngoi_pho_bien_2026\" >4. B\u1ea3ng ti\u00eau chu\u1ea9n \u0111\u1ed9 d\u1ed1c cho t\u1eebng lo\u1ea1i ng\u00f3i ph\u1ed5 bi\u1ebfn 2026<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/maotrung.com\/blogs\/kien-thuc-chung\/cach-tinh-do-doc-mai-ngoi-187334\/#41_Ngoi_dat_nung_truyen_thong\" >4.1. Ng\u00f3i \u0111\u1ea5t nung truy\u1ec1n th\u1ed1ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/maotrung.com\/blogs\/kien-thuc-chung\/cach-tinh-do-doc-mai-ngoi-187334\/#42_Ngoi_mau_xi_mang_hien_dai\" >4.2. Ng\u00f3i m\u00e0u xi m\u0103ng hi\u1ec7n \u0111\u1ea1i<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/maotrung.com\/blogs\/kien-thuc-chung\/cach-tinh-do-doc-mai-ngoi-187334\/#43_Ngoi_am_duong_va_cac_dong_ngoi_dac_thu\" >4.3. Ng\u00f3i \u00e2m d\u01b0\u01a1ng v\u00e0 c\u00e1c d\u00f2ng ng\u00f3i \u0111\u1eb7c th\u00f9<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/maotrung.com\/blogs\/kien-thuc-chung\/cach-tinh-do-doc-mai-ngoi-187334\/#5_Tu_van_lua_chon_do_doc_mai_cho_tung_doi_tuong_nguoi_dung\" >5. T\u01b0 v\u1ea5n l\u1ef1a ch\u1ecdn \u0111\u1ed9 d\u1ed1c m\u00e1i cho t\u1eebng \u0111\u1ed1i t\u01b0\u1ee3ng ng\u01b0\u1eddi d\u00f9ng<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/maotrung.com\/blogs\/kien-thuc-chung\/cach-tinh-do-doc-mai-ngoi-187334\/#51_Loi_khuyen_cho_gia_chu_xay_nha_lan_dau\" >5.1. L\u1eddi khuy\u00ean cho gia ch\u1ee7 x\u00e2y nh\u00e0 l\u1ea7n \u0111\u1ea7u<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/maotrung.com\/blogs\/kien-thuc-chung\/cach-tinh-do-doc-mai-ngoi-187334\/#52_Luu_y_cho_nguoi_da_co_kinh_nghiem_cai_tao_nha\" >5.2. L\u01b0u \u00fd cho ng\u01b0\u1eddi \u0111\u00e3 c\u00f3 kinh nghi\u1ec7m c\u1ea3i t\u1ea1o nh\u00e0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/maotrung.com\/blogs\/kien-thuc-chung\/cach-tinh-do-doc-mai-ngoi-187334\/#53_Thong_so_ky_thuat_cho_ky_su_va_nha_thau\" >5.3. Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt cho k\u1ef9 s\u01b0 v\u00e0 nh\u00e0 th\u1ea7u<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/maotrung.com\/blogs\/kien-thuc-chung\/cach-tinh-do-doc-mai-ngoi-187334\/#6_Nhung_sai_lam_pho_bien_khi_thiet_ke_do_doc_mai_nha\" >6. Nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn khi thi\u1ebft k\u1ebf \u0111\u1ed9 d\u1ed1c m\u00e1i nh\u00e0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/maotrung.com\/blogs\/kien-thuc-chung\/cach-tinh-do-doc-mai-ngoi-187334\/#8_Mot_so_cau_hoi_thuong_gap\" >8. M\u1ed9t s\u1ed1 c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/maotrung.com\/blogs\/kien-thuc-chung\/cach-tinh-do-doc-mai-ngoi-187334\/#81_Do_doc_mai_ngoi_toi_thieu_de_khong_bi_tham_la_bao_nhieu\" >8.1. \u0110\u1ed9 d\u1ed1c m\u00e1i ng\u00f3i t\u1ed1i thi\u1ec3u \u0111\u1ec3 kh\u00f4ng b\u1ecb th\u1ea5m l\u00e0 bao nhi\u00eau<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/maotrung.com\/blogs\/kien-thuc-chung\/cach-tinh-do-doc-mai-ngoi-187334\/#82_Mai_do_be_tong_dan_ngoi_co_can_do_doc_cao_khong\" >8.2. M\u00e1i \u0111\u1ed5 b\u00ea t\u00f4ng d\u00e1n ng\u00f3i c\u00f3 c\u1ea7n \u0111\u1ed9 d\u1ed1c cao kh\u00f4ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/maotrung.com\/blogs\/kien-thuc-chung\/cach-tinh-do-doc-mai-ngoi-187334\/#83_Lam_the_nao_de_do_chieu_cao_va_chieu_dai_mai_thuc_te_tai_cong_trinh\" >8.3. L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 \u0111o chi\u1ec1u cao v\u00e0 chi\u1ec1u d\u00e0i m\u00e1i th\u1ef1c t\u1ebf t\u1ea1i c\u00f4ng tr\u00ecnh<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/maotrung.com\/blogs\/kien-thuc-chung\/cach-tinh-do-doc-mai-ngoi-187334\/#84_Loai_ngoi_nao_phu_hop_nhat_cho_mai_co_do_doc_thap\" >8.4. Lo\u1ea1i ng\u00f3i n\u00e0o ph\u00f9 h\u1ee3p nh\u1ea5t cho m\u00e1i c\u00f3 \u0111\u1ed9 d\u1ed1c th\u1ea5p<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"Nhung_diem_chinh\"><\/span><strong>Nh\u1eefng \u0111i\u1ec3m ch\u00ednh<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<blockquote>\n<ul>\n<li style=\"text-align: justify;\">C\u00f4ng th\u1ee9c c\u01a1 b\u1ea3n \u0111\u1ec3 t\u00ednh \u0111\u1ed9 d\u1ed1c ph\u1ea7n tr\u0103m l\u00e0 i% = (H\/L) x 100 (v\u1edbi H l\u00e0 chi\u1ec1u cao \u0111\u1ec9nh m\u00e1i, L l\u00e0 chi\u1ec1u d\u00e0i ph\u01b0\u01a1ng ngang).<\/li>\n<li style=\"text-align: justify;\">\u0110\u1ed9 d\u1ed1c m\u00e1i ng\u00f3i l\u00fd t\u01b0\u1edfng cho h\u1ea7u h\u1ebft c\u00f4ng tr\u00ecnh d\u00e2n d\u1ee5ng l\u00e0 30 \u0111\u1ed9 \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o tho\u00e1t n\u01b0\u1edbc nhanh v\u00e0 t\u1ed1i \u01b0u chi ph\u00ed x\u00e0 g\u1ed3.<\/li>\n<li style=\"text-align: justify;\">Ng\u00f3i \u0111\u1ea5t nung truy\u1ec1n th\u1ed1ng c\u1ea7n \u0111\u1ed9 d\u1ed1c cao t\u1eeb 35\u00b0 \u2013 45\u00b0 \u0111\u1ec3 h\u1ea1n ch\u1ebf n\u01b0\u1edbc t\u1ea1t ng\u01b0\u1ee3c qua c\u00e1c khe h\u1edf ch\u1ed3ng m\u00ed.<\/li>\n<li style=\"text-align: justify;\">Ng\u00f3i m\u00e0u xi m\u0103ng \u00e9p th\u1ee7y l\u1ef1c c\u00f3 g\u1edd ch\u1eafn n\u01b0\u1edbc hi\u1ec7n \u0111\u1ea1i cho ph\u00e9p l\u1ee3p \u1edf \u0111\u1ed9 d\u1ed1c th\u1ea5p h\u01a1n, an to\u00e0n trong kho\u1ea3ng 25\u00b0 \u2013 35\u00b0.<\/li>\n<li style=\"text-align: justify;\">M\u00e1i qu\u00e1 tho\u1ea3i (d\u01b0\u1edbi 20 \u0111\u1ed9) r\u1ea5t d\u1ec5 b\u1ecb th\u1ea5m d\u1ed9t khi c\u00f3 gi\u00f3 m\u1ea1nh; m\u00e1i qu\u00e1 d\u1ed1c (tr\u00ean 60 \u0111\u1ed9) g\u00e2y kh\u00f3 thi c\u00f4ng v\u00e0 t\u1ed1n k\u00e9m v\u1eadt t\u01b0.<\/li>\n<li style=\"text-align: justify;\">M\u00e1i b\u00ea t\u00f4ng d\u00e1n ng\u00f3i ch\u1ec9 c\u1ea7n \u0111\u1ed9 nghi\u00eang kho\u1ea3ng 20 \u2013 25 \u0111\u1ed9 v\u00ec l\u1edbp b\u00ea t\u00f4ng \u0111\u00e3 \u0111\u00f3ng vai tr\u00f2 l\u00e0 m\u00e0ng ch\u1ed1ng th\u1ea5m ch\u00ednh.<\/li>\n<\/ul>\n<\/blockquote>\n<h2 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"1_Do_doc_mai_ngoi_la_gi\"><\/span><strong>1. \u0110\u1ed9 d\u1ed1c m\u00e1i ng\u00f3i l\u00e0 g\u00ec?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\">\u0110\u1ed9 d\u1ed1c m\u00e1i l\u00e0 t\u1ec9 l\u1ec7 gi\u1eefa chi\u1ec1u cao \u0111\u1ec9nh m\u00e1i v\u00e0 chi\u1ec1u d\u00e0i m\u00e1i theo ph\u01b0\u01a1ng ngang. Ch\u1ec9 s\u1ed1 n\u00e0y quy\u1ebft \u0111\u1ecbnh \u0111\u1ed9 nghi\u00eang c\u1ee7a b\u1ec1 m\u1eb7t m\u00e1i so v\u1edbi m\u1eb7t ph\u1eb3ng n\u1eb1m ngang. Trong th\u1ef1c t\u1ebf, th\u1ee3 thi c\u00f4ng th\u01b0\u1eddng s\u1eed d\u1ee5ng \u0111\u01a1n v\u1ecb ph\u1ea7n tr\u0103m (%), trong khi ki\u1ebfn tr\u00fac s\u01b0 th\u01b0\u1eddng d\u00f9ng g\u00f3c d\u1ed1c (\u0111\u1ed9) tr\u00ean b\u1ea3n v\u1ebd k\u1ef9 thu\u1eadt.<\/p>\n<p style=\"text-align: justify;\">\u0110\u1ed9 d\u1ed1c m\u00e1i ng\u00f3i (i) l\u00e0 \u0111\u1ea1i l\u01b0\u1ee3ng \u0111o l\u01b0\u1eddng \u0111\u1ed9 nghi\u00eang c\u1ee7a m\u00e1i nh\u00e0 nh\u1eb1m \u0111\u1ea3m b\u1ea3o tho\u00e1t n\u01b0\u1edbc v\u00e0 th\u1ea9m m\u1ef9. C\u00f4ng th\u1ee9c t\u00ednh c\u01a1 b\u1ea3n th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng l\u00e0 $i% = (H\/L) \\times 100$. Vi\u1ec7c x\u00e1c \u0111\u1ecbnh \u0111\u00fang \u0111\u1ed9 d\u1ed1c gi\u00fap h\u1ec7 th\u1ed1ng tho\u00e1t n\u01b0\u1edbc m\u00e1i ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 nh\u1ea5t.<\/p>\n<h2 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"2_Tai_sao_can_tinh_toan_do_doc_mai_ngoi_chinh_xac\"><\/span><strong>2. T\u1ea1i sao c\u1ea7n t\u00ednh to\u00e1n \u0111\u1ed9 d\u1ed1c m\u00e1i ng\u00f3i ch\u00ednh x\u00e1c?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\">Vi\u1ec7c t\u00ednh to\u00e1n \u0111\u1ed9 d\u1ed1c m\u00e1i <a href=\"https:\/\/maotrung.com\/collections\/gach\/ngoi-lop-mai\" target=\"_blank\" rel=\"noopener\">ng\u00f3i<\/a> mang l\u1ea1i nhi\u1ec1u l\u1ee3i \u00edch thi\u1ebft th\u1ef1c cho c\u00f4ng tr\u00ecnh:<\/p>\n<ul style=\"text-align: justify;\">\n<li>\u0110\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng tho\u00e1t n\u01b0\u1edbc nhanh ch\u00f3ng, ng\u0103n hi\u1ec7n t\u01b0\u1ee3ng n\u01b0\u1edbc th\u1ea5m ng\u01b0\u1ee3c qua khe ng\u00f3i do mao d\u1eabn.<\/li>\n<li>T\u1ea1o di\u1ec7n m\u1ea1o c\u00e2n \u0111\u1ed1i cho ng\u00f4i nh\u00e0 theo t\u1ef7 l\u1ec7 ph\u00f9 h\u1ee3p v\u1edbi t\u1eebng phong c\u00e1ch ki\u1ebfn tr\u00fac nh\u01b0 m\u00e1i Th\u00e1i hay m\u00e1i Nh\u1eadt.<\/li>\n<li>Gi\u1ea3m thi\u1ec3u t\u00ecnh tr\u1ea1ng t\u00edch t\u1ee5 r\u00e1c th\u1ea3i, l\u00e1 c\u00e2y v\u00e0 b\u00f9n \u0111\u1ea5t tr\u00ean b\u1ec1 m\u1eb7t m\u00e1i, gi\u00fap b\u1ea3o v\u1ec7 h\u1ec7 th\u1ed1ng x\u00e0 g\u1ed3 v\u00e0 k\u00e8o.<\/li>\n<li>H\u1ed7 tr\u1ee3 gia ch\u1ee7 t\u00ednh to\u00e1n ch\u00ednh x\u00e1c di\u1ec7n t\u00edch m\u00e1i th\u1ef1c t\u1ebf \u0111\u1ec3 mua \u0111\u00fang s\u1ed1 l\u01b0\u1ee3ng ng\u00f3i, tr\u00e1nh l\u00e3ng ph\u00ed v\u1eadt t\u01b0.<\/li>\n<li>Gia t\u0103ng \u0111\u1ed9 b\u1ec1n k\u1ebft c\u1ea5u nh\u1edd gi\u1ea3m \u00e1p l\u1ef1c n\u01b0\u1edbc \u0111\u1ecdng trong nh\u1eefng \u0111\u1ee3t m\u01b0a l\u1edbn k\u00e9o d\u00e0i.<\/li>\n<\/ul>\n<figure id=\"attachment_187408\" aria-describedby=\"caption-attachment-187408\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-187408\" src=\"https:\/\/source-maotrung.s3.vn-hcm-1.vietnix.cloud\/wp-content\/uploads\/2026\/03\/cach-tinh-do-doc-mai-ngoi-1.jpg\" alt=\"C\u1ea7n t\u00ednh to\u00e1n \u0111\u1ed9 d\u1ed1c m\u00e1i ng\u00f3i ch\u00ednh x\u00e1c\" width=\"800\" height=\"450\" srcset=\"https:\/\/source-maotrung.s3.vn-hcm-1.vietnix.cloud\/wp-content\/uploads\/2026\/03\/cach-tinh-do-doc-mai-ngoi-1.jpg 800w, https:\/\/source-maotrung.s3.vn-hcm-1.vietnix.cloud\/wp-content\/uploads\/2026\/03\/cach-tinh-do-doc-mai-ngoi-1-300x169.jpg 300w, https:\/\/source-maotrung.s3.vn-hcm-1.vietnix.cloud\/wp-content\/uploads\/2026\/03\/cach-tinh-do-doc-mai-ngoi-1-768x432.jpg 768w, https:\/\/source-maotrung.s3.vn-hcm-1.vietnix.cloud\/wp-content\/uploads\/2026\/03\/cach-tinh-do-doc-mai-ngoi-1-600x338.jpg 600w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-187408\" class=\"wp-caption-text\">C\u1ea7n t\u00ednh to\u00e1n \u0111\u1ed9 d\u1ed1c m\u00e1i ng\u00f3i ch\u00ednh x\u00e1c<\/figcaption><\/figure>\n<h2 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"3_Cach_tinh_do_doc_mai_ngoi_chuan_ky_thuat_voi_cong_thuc_chi_tiet\"><\/span><strong>3. C\u00e1ch t\u00ednh \u0111\u1ed9 d\u1ed1c m\u00e1i ng\u00f3i chu\u1ea9n k\u1ef9 thu\u1eadt v\u1edbi c\u00f4ng th\u1ee9c chi ti\u1ebft<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"31_Cach_tinh_do_doc_mai_theo_ty_le_phan_tram\"><\/span><strong>3.1. C\u00e1ch t\u00ednh \u0111\u1ed9 d\u1ed1c m\u00e1i theo t\u1ef7 l\u1ec7 ph\u1ea7n tr\u0103m<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\">\u0110\u00e2y l\u00e0 c\u00e1ch t\u00ednh ph\u1ed5 bi\u1ebfn nh\u1ea5t trong thi c\u00f4ng th\u1ef1c t\u1ebf t\u1ea1i Vi\u1ec7t Nam.<\/p>\n<p style=\"text-align: justify;\"><strong>C\u00f4ng th\u1ee9c<\/strong>: <strong>i% = (H \/ L) x 100<\/strong><\/p>\n<p style=\"text-align: justify;\">Trong \u0111\u00f3:<\/p>\n<ul style=\"text-align: justify;\">\n<li><strong>H<\/strong>: Chi\u1ec1u cao t\u1eeb \u0111\u1ec9nh m\u00e1i \u0111\u1ebfn \u0111i\u1ec3m th\u1ea5p nh\u1ea5t c\u1ee7a m\u00e1i.<\/li>\n<li><strong>L<\/strong>: Chi\u1ec1u d\u00e0i m\u00e1i t\u00ednh theo ph\u01b0\u01a1ng ngang (th\u01b0\u1eddng l\u00e0 n\u1eeda chi\u1ec1u r\u1ed9ng ng\u00f4i nh\u00e0 n\u1ebfu m\u00e1i \u0111\u1ed1i x\u1ee9ng).<\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><strong>V\u00ed d\u1ee5 th\u1ef1c t\u1ebf<\/strong>: N\u1ebfu ng\u00f4i nh\u00e0 r\u1ed9ng 8m, \u0111\u1ec9nh m\u00e1i cao 3m. Ta c\u00f3 L = 4m v\u00e0 H = 3m. \u0110\u1ed9 d\u1ed1c i = (3 \/ 4) x 100 = 75%.<\/p>\n<figure id=\"attachment_187409\" aria-describedby=\"caption-attachment-187409\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-187409\" src=\"https:\/\/source-maotrung.s3.vn-hcm-1.vietnix.cloud\/wp-content\/uploads\/2026\/03\/cach-tinh-do-doc-mai-ngoi-2.jpg\" alt=\"C\u00e1ch t\u00ednh \u0111\u1ed9 d\u1ed1c m\u00e1i theo t\u1ef7 l\u1ec7 ph\u1ea7n tr\u0103m\" width=\"800\" height=\"450\" srcset=\"https:\/\/source-maotrung.s3.vn-hcm-1.vietnix.cloud\/wp-content\/uploads\/2026\/03\/cach-tinh-do-doc-mai-ngoi-2.jpg 800w, https:\/\/source-maotrung.s3.vn-hcm-1.vietnix.cloud\/wp-content\/uploads\/2026\/03\/cach-tinh-do-doc-mai-ngoi-2-300x169.jpg 300w, https:\/\/source-maotrung.s3.vn-hcm-1.vietnix.cloud\/wp-content\/uploads\/2026\/03\/cach-tinh-do-doc-mai-ngoi-2-768x432.jpg 768w, https:\/\/source-maotrung.s3.vn-hcm-1.vietnix.cloud\/wp-content\/uploads\/2026\/03\/cach-tinh-do-doc-mai-ngoi-2-600x338.jpg 600w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-187409\" class=\"wp-caption-text\">C\u00e1ch t\u00ednh \u0111\u1ed9 d\u1ed1c m\u00e1i theo t\u1ef7 l\u1ec7 ph\u1ea7n tr\u0103m<\/figcaption><\/figure>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"32_Cach_tinh_do_doc_mai_theo_goc_alpha\"><\/span><strong>3.2. C\u00e1ch t\u00ednh \u0111\u1ed9 d\u1ed1c m\u00e1i theo g\u00f3c alpha<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\">Trong c\u00e1c b\u1ea3n v\u1ebd thi\u1ebft k\u1ebf, \u0111\u1ed9 d\u1ed1c th\u01b0\u1eddng \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n qua g\u00f3c alpha (\u0111\u1ed9).<\/p>\n<p style=\"text-align: justify;\">C\u00f4ng th\u1ee9c: <strong>m = tan(alpha) = H \/ L<\/strong><\/p>\n<p style=\"text-align: justify;\">B\u1ea3ng quy \u0111\u1ed5i nhanh m\u1ed9t s\u1ed1 g\u00f3c d\u1ed1c m\u00e1i ng\u00f3i ph\u1ed5 bi\u1ebfn:<\/p>\n<table style=\"width: 280px;\" border=\"1\">\n<thead>\n<tr>\n<th>G\u00f3c alpha (\u00b0)<\/th>\n<th>\u0110\u1ed9 d\u1ed1c (%)<\/th>\n<th>H\u1ec7 s\u1ed1 m\u00e1i (m)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>25\u00b0<\/td>\n<td>46%<\/td>\n<td>0.46<\/td>\n<\/tr>\n<tr>\n<td>30\u00b0<\/td>\n<td>57%<\/td>\n<td>0.57<\/td>\n<\/tr>\n<tr>\n<td>35\u00b0<\/td>\n<td>70%<\/td>\n<td>0.70<\/td>\n<\/tr>\n<tr>\n<td>45\u00b0<\/td>\n<td>100%<\/td>\n<td>1.00<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"text-align: justify;\">K\u1ef9 s\u01b0 th\u01b0\u1eddng s\u1eed d\u1ee5ng h\u1ec7 s\u1ed1 m \u0111\u1ec3 nh\u00e2n v\u1edbi di\u1ec7n t\u00edch s\u00e0n m\u00e1i nh\u1eb1m t\u00ednh to\u00e1n nhanh di\u1ec7n t\u00edch ng\u00f3i c\u1ea7n mua.<\/p>\n<h2 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"4_Bang_tieu_chuan_do_doc_cho_tung_loai_ngoi_pho_bien_2026\"><\/span><strong>4. B\u1ea3ng ti\u00eau chu\u1ea9n \u0111\u1ed9 d\u1ed1c cho t\u1eebng lo\u1ea1i ng\u00f3i ph\u1ed5 bi\u1ebfn 2026<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"41_Ngoi_dat_nung_truyen_thong\"><\/span><strong>4.1. Ng\u00f3i \u0111\u1ea5t nung truy\u1ec1n th\u1ed1ng<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\">C\u00e1c d\u00f2ng ng\u00f3i \u0111\u1ea5t nung nh\u01b0 ng\u00f3i 22 vi\u00ean\/m2 ho\u1eb7c ng\u00f3i m\u0169i h\u00e0i c\u00f3 b\u1ec1 m\u1eb7t nh\u00e1m v\u00e0 thi\u1ebft k\u1ebf ch\u1ed3ng m\u00ed ki\u1ec3u c\u0169. Do \u0111\u00f3, lo\u1ea1i ng\u00f3i n\u00e0y y\u00eau c\u1ea7u \u0111\u1ed9 d\u1ed1c cao \u0111\u1ec3 n\u01b0\u1edbc tho\u00e1t nhanh nh\u1ea5t. Ti\u00eau chu\u1ea9n \u0111\u1ed9 d\u1ed1c ph\u00f9 h\u1ee3p th\u01b0\u1eddng dao \u0111\u1ed9ng t\u1eeb <strong>35\u00b0 \u0111\u1ebfn 45\u00b0<\/strong>.<\/p>\n<figure id=\"attachment_187410\" aria-describedby=\"caption-attachment-187410\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-187410\" src=\"https:\/\/source-maotrung.s3.vn-hcm-1.vietnix.cloud\/wp-content\/uploads\/2026\/03\/cach-tinh-do-doc-mai-ngoi-3.jpg\" alt=\"Ng\u00f3i \u0111\u1ea5t nung truy\u1ec1n th\u1ed1ng\" width=\"800\" height=\"450\" srcset=\"https:\/\/source-maotrung.s3.vn-hcm-1.vietnix.cloud\/wp-content\/uploads\/2026\/03\/cach-tinh-do-doc-mai-ngoi-3.jpg 800w, https:\/\/source-maotrung.s3.vn-hcm-1.vietnix.cloud\/wp-content\/uploads\/2026\/03\/cach-tinh-do-doc-mai-ngoi-3-300x169.jpg 300w, https:\/\/source-maotrung.s3.vn-hcm-1.vietnix.cloud\/wp-content\/uploads\/2026\/03\/cach-tinh-do-doc-mai-ngoi-3-768x432.jpg 768w, https:\/\/source-maotrung.s3.vn-hcm-1.vietnix.cloud\/wp-content\/uploads\/2026\/03\/cach-tinh-do-doc-mai-ngoi-3-600x338.jpg 600w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-187410\" class=\"wp-caption-text\">Ng\u00f3i \u0111\u1ea5t nung truy\u1ec1n th\u1ed1ng<\/figcaption><\/figure>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"42_Ngoi_mau_xi_mang_hien_dai\"><\/span><strong>4.2. Ng\u00f3i m\u00e0u xi m\u0103ng hi\u1ec7n \u0111\u1ea1i<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\">C\u00e1c th\u01b0\u01a1ng hi\u1ec7u nh\u01b0 <strong>Fuji, SCG (Th\u00e1i Lan), Prime<\/strong> s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 \u00e9p th\u1ee7y l\u1ef1c v\u1edbi g\u1edd ch\u1eafn n\u01b0\u1edbc hi\u1ec7n \u0111\u1ea1i. Thi\u1ebft k\u1ebf n\u00e0y cho ph\u00e9p l\u1ee3p \u1edf \u0111\u1ed9 d\u1ed1c th\u1ea5p h\u01a1n m\u00e0 v\u1eabn \u0111\u1ea3m b\u1ea3o an to\u00e0n, kh\u00f4ng b\u1ecb t\u1ea1t n\u01b0\u1edbc. Ti\u00eau chu\u1ea9n th\u00f4ng th\u01b0\u1eddng n\u1eb1m trong kho\u1ea3ng <strong>25\u00b0 \u0111\u1ebfn 35\u00b0<\/strong>.<\/p>\n<figure id=\"attachment_187411\" aria-describedby=\"caption-attachment-187411\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-187411\" src=\"https:\/\/source-maotrung.s3.vn-hcm-1.vietnix.cloud\/wp-content\/uploads\/2026\/03\/cach-tinh-do-doc-mai-ngoi-4.jpg\" alt=\"Ng\u00f3i m\u00e0u xi m\u0103ng hi\u1ec7n \u0111\u1ea1i\" width=\"800\" height=\"450\" srcset=\"https:\/\/source-maotrung.s3.vn-hcm-1.vietnix.cloud\/wp-content\/uploads\/2026\/03\/cach-tinh-do-doc-mai-ngoi-4.jpg 800w, https:\/\/source-maotrung.s3.vn-hcm-1.vietnix.cloud\/wp-content\/uploads\/2026\/03\/cach-tinh-do-doc-mai-ngoi-4-300x169.jpg 300w, https:\/\/source-maotrung.s3.vn-hcm-1.vietnix.cloud\/wp-content\/uploads\/2026\/03\/cach-tinh-do-doc-mai-ngoi-4-768x432.jpg 768w, https:\/\/source-maotrung.s3.vn-hcm-1.vietnix.cloud\/wp-content\/uploads\/2026\/03\/cach-tinh-do-doc-mai-ngoi-4-600x338.jpg 600w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-187411\" class=\"wp-caption-text\">Ng\u00f3i m\u00e0u xi m\u0103ng hi\u1ec7n \u0111\u1ea1i<\/figcaption><\/figure>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"43_Ngoi_am_duong_va_cac_dong_ngoi_dac_thu\"><\/span><strong>4.3. Ng\u00f3i \u00e2m d\u01b0\u01a1ng v\u00e0 c\u00e1c d\u00f2ng ng\u00f3i \u0111\u1eb7c th\u00f9<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\">Ng\u00f3i \u00e2m d\u01b0\u01a1ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u1ee3p \u1edf \u0111\u1ed9 d\u1ed1c kho\u1ea3ng <strong>25\u00b0<\/strong> \u0111\u1ec3 gi\u1eef n\u00e9t c\u1ed5 k\u00ednh cho nh\u00e0 c\u1ed5 ho\u1eb7c ch\u00f9a chi\u1ec1n. Ng\u00f3i Bitum ph\u1ee7 \u0111\u00e1 c\u00f3 d\u1ea3i \u0111\u1ed9 d\u1ed1c r\u1ed9ng t\u1eeb <strong>20\u00b0 \u0111\u1ebfn 90\u00b0<\/strong> nh\u1edd kh\u1ea3 n\u0103ng d\u00e1n tr\u1ef1c ti\u1ebfp v\u00e0 ch\u1ed1ng th\u1ea5m t\u1ed1t tr\u00ean nhi\u1ec1u b\u1ec1 m\u1eb7t.<\/p>\n<figure id=\"attachment_187412\" aria-describedby=\"caption-attachment-187412\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-187412\" src=\"https:\/\/source-maotrung.s3.vn-hcm-1.vietnix.cloud\/wp-content\/uploads\/2026\/03\/cach-tinh-do-doc-mai-ngoi-5.jpg\" alt=\"C\u00e1c d\u00f2ng ng\u00f3i \u0111\u1eb7c th\u00f9\" width=\"800\" height=\"450\" srcset=\"https:\/\/source-maotrung.s3.vn-hcm-1.vietnix.cloud\/wp-content\/uploads\/2026\/03\/cach-tinh-do-doc-mai-ngoi-5.jpg 800w, https:\/\/source-maotrung.s3.vn-hcm-1.vietnix.cloud\/wp-content\/uploads\/2026\/03\/cach-tinh-do-doc-mai-ngoi-5-300x169.jpg 300w, https:\/\/source-maotrung.s3.vn-hcm-1.vietnix.cloud\/wp-content\/uploads\/2026\/03\/cach-tinh-do-doc-mai-ngoi-5-768x432.jpg 768w, https:\/\/source-maotrung.s3.vn-hcm-1.vietnix.cloud\/wp-content\/uploads\/2026\/03\/cach-tinh-do-doc-mai-ngoi-5-600x338.jpg 600w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-187412\" class=\"wp-caption-text\">C\u00e1c d\u00f2ng ng\u00f3i \u0111\u1eb7c th\u00f9<\/figcaption><\/figure>\n<h2 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"5_Tu_van_lua_chon_do_doc_mai_cho_tung_doi_tuong_nguoi_dung\"><\/span><strong>5. T\u01b0 v\u1ea5n l\u1ef1a ch\u1ecdn \u0111\u1ed9 d\u1ed1c m\u00e1i cho t\u1eebng \u0111\u1ed1i t\u01b0\u1ee3ng ng\u01b0\u1eddi d\u00f9ng<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"51_Loi_khuyen_cho_gia_chu_xay_nha_lan_dau\"><\/span><strong>5.1. L\u1eddi khuy\u00ean cho gia ch\u1ee7 x\u00e2y nh\u00e0 l\u1ea7n \u0111\u1ea7u<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\">L\u1ef1a ch\u1ecdn an to\u00e0n nh\u1ea5t cho h\u1ea7u h\u1ebft c\u00e1c c\u00f4ng tr\u00ecnh d\u00e2n d\u1ee5ng l\u00e0 g\u00f3c <strong>30 \u0111\u1ed9<\/strong>. \u0110\u00e2y l\u00e0 m\u1ee9c c\u00e2n b\u1eb1ng gi\u1eefa kh\u1ea3 n\u0103ng tho\u00e1t n\u01b0\u1edbc v\u00e0 v\u1ebb \u0111\u1eb9p ki\u1ebfn tr\u00fac. M\u1ee9c d\u1ed1c n\u00e0y c\u0169ng gi\u00fap ti\u1ebft ki\u1ec7m chi ph\u00ed v\u1eadt t\u01b0 x\u00e0 g\u1ed3 so v\u1edbi c\u00e1c ki\u1ec3u m\u00e1i qu\u00e1 cao.<\/p>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"52_Luu_y_cho_nguoi_da_co_kinh_nghiem_cai_tao_nha\"><\/span><strong>5.2. L\u01b0u \u00fd cho ng\u01b0\u1eddi \u0111\u00e3 c\u00f3 kinh nghi\u1ec7m c\u1ea3i t\u1ea1o nh\u00e0<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\">B\u1ea1n n\u00ean ki\u1ec3m tra \u0111\u1ed9 b\u00f3ng men c\u1ee7a lo\u1ea1i ng\u00f3i \u0111\u1ecbnh s\u1eed d\u1ee5ng. C\u00e1c d\u00f2ng ng\u00f3i men cao c\u1ea5p c\u00f3 \u0111\u1ed9 tr\u01a1n b\u00f3ng cao gi\u00fap n\u01b0\u1edbc tho\u00e1t nhanh h\u01a1n \u1edf c\u00f9ng m\u1ed9t \u0111\u1ed9 d\u1ed1c. Khi c\u1ea3i t\u1ea1o tr\u00ean n\u1ec1n k\u00e8o c\u0169, h\u00e3y t\u00ednh to\u00e1n k\u1ef9 t\u1ea3i tr\u1ecdng v\u00ec ng\u00f3i \u0111\u1ea5t nung th\u01b0\u1eddng n\u1eb7ng h\u01a1n ng\u00f3i xi m\u0103ng.<\/p>\n<figure id=\"attachment_187413\" aria-describedby=\"caption-attachment-187413\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-187413\" src=\"https:\/\/source-maotrung.s3.vn-hcm-1.vietnix.cloud\/wp-content\/uploads\/2026\/03\/cach-tinh-do-doc-mai-ngoi-6.jpg\" alt=\"N\u00ean ki\u1ec3m tra \u0111\u1ed9 b\u00f3ng men c\u1ee7a lo\u1ea1i ng\u00f3i \u0111\u1ecbnh s\u1eed d\u1ee5ng\" width=\"800\" height=\"450\" srcset=\"https:\/\/source-maotrung.s3.vn-hcm-1.vietnix.cloud\/wp-content\/uploads\/2026\/03\/cach-tinh-do-doc-mai-ngoi-6.jpg 800w, https:\/\/source-maotrung.s3.vn-hcm-1.vietnix.cloud\/wp-content\/uploads\/2026\/03\/cach-tinh-do-doc-mai-ngoi-6-300x169.jpg 300w, https:\/\/source-maotrung.s3.vn-hcm-1.vietnix.cloud\/wp-content\/uploads\/2026\/03\/cach-tinh-do-doc-mai-ngoi-6-768x432.jpg 768w, https:\/\/source-maotrung.s3.vn-hcm-1.vietnix.cloud\/wp-content\/uploads\/2026\/03\/cach-tinh-do-doc-mai-ngoi-6-600x338.jpg 600w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-187413\" class=\"wp-caption-text\">N\u00ean ki\u1ec3m tra \u0111\u1ed9 b\u00f3ng men c\u1ee7a lo\u1ea1i ng\u00f3i \u0111\u1ecbnh s\u1eed d\u1ee5ng<\/figcaption><\/figure>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"53_Thong_so_ky_thuat_cho_ky_su_va_nha_thau\"><\/span><strong>5.3. Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt cho k\u1ef9 s\u01b0 v\u00e0 nh\u00e0 th\u1ea7u<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\">M\u00e1i c\u00e0ng d\u1ed1c th\u00ec \u00e1p l\u1ef1c gi\u00f3 t\u00e1c \u0111\u1ed9ng l\u00ean h\u1ec7 th\u1ed1ng k\u00e8o c\u00e0ng l\u1edbn. K\u1ef9 s\u01b0 c\u1ea7n t\u00ednh to\u00e1n kho\u1ea3ng c\u00e1ch li t\u00f4 (lath) ph\u00f9 h\u1ee3p v\u1edbi t\u1eebng \u0111\u1ed9 d\u1ed1c \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ng\u00f3i \u0111\u01b0\u1ee3c c\u1ed1 \u0111\u1ecbnh ch\u1eafc ch\u1eafn. Tr\u01b0\u1edbc khi l\u1ee3p, h\u00e3y \u0111o kho\u1ea3ng c\u00e1ch t\u1eeb \u0111\u1ec9nh xu\u1ed1ng x\u00e0 g\u1ed3 cu\u1ed1i v\u00e0 ki\u1ec3m tra \u0111\u1ed9 ph\u1eb3ng c\u1ee7a h\u1ec7 k\u00e8o.<\/p>\n<h2 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"6_Nhung_sai_lam_pho_bien_khi_thiet_ke_do_doc_mai_nha\"><\/span><strong>6. Nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn khi thi\u1ebft k\u1ebf \u0111\u1ed9 d\u1ed1c m\u00e1i nh\u00e0<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\">Gia ch\u1ee7 c\u1ea7n l\u01b0u \u00fd tr\u00e1nh c\u00e1c sai s\u00f3t th\u01b0\u1eddng g\u1eb7p sau \u0111\u00e2y:<\/p>\n<ul style=\"text-align: justify;\">\n<li>Thi\u1ebft k\u1ebf m\u00e1i qu\u00e1 tho\u1ea3i (d\u01b0\u1edbi 20 \u0111\u1ed9) khi\u1ebfn n\u01b0\u1edbc m\u01b0a d\u1ec5 b\u1ecb \u0111\u1ea9y ng\u01b0\u1ee3c v\u00e0o trong khi c\u00f3 gi\u00f3 m\u1ea1nh.<\/li>\n<li>M\u00e1i qu\u00e1 d\u1ed1c (tr\u00ean 60 \u0111\u1ed9) g\u00e2y kh\u00f3 kh\u0103n cho vi\u1ec7c thi c\u00f4ng v\u00e0 l\u00e0m t\u0103ng chi ph\u00ed nh\u00e2n c\u00f4ng, v\u1eadt t\u01b0 b\u1eaft v\u00edt.<\/li>\n<li>B\u1ecf qua vi\u1ec7c t\u00ednh to\u00e1n \u0111\u1ed9 ch\u1ed3ng m\u00ed c\u1ee7a ng\u00f3i d\u1eabn \u0111\u1ebfn thi\u1ebfu h\u1ee5t kho\u1ea3ng 10-15% v\u1eadt t\u01b0 khi l\u1ee3p th\u1ef1c t\u1ebf.<\/li>\n<li>Kh\u00f4ng ki\u1ec3m tra \u0111\u1ed9 ph\u1eb3ng c\u1ee7a h\u1ec7 th\u1ed1ng x\u00e0 g\u1ed3 tr\u01b0\u1edbc khi l\u1ee3p l\u00e0m m\u00e1i ng\u00f3i b\u1ecb nh\u1ea5p nh\u00f4, d\u1ec5 th\u1ea5m d\u1ed9t.<\/li>\n<li>S\u1eed d\u1ee5ng sai lo\u1ea1i ng\u00f3i cho \u0111\u1ed9 d\u1ed1c \u0111\u00e3 ch\u1ecdn, v\u00ed d\u1ee5 d\u00f9ng ng\u00f3i c\u00f3 g\u1edd th\u1ea5p cho m\u00e1i c\u00f3 \u0111\u1ed9 nghi\u00eang qu\u00e1 nh\u1ecf.<\/li>\n<\/ul>\n<figure id=\"attachment_187414\" aria-describedby=\"caption-attachment-187414\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-187414\" src=\"https:\/\/source-maotrung.s3.vn-hcm-1.vietnix.cloud\/wp-content\/uploads\/2026\/03\/cach-tinh-do-doc-mai-ngoi-7.jpg\" alt=\"C\u1ea7n tr\u00e1nh thi\u1ebft k\u1ebf m\u00e1i ng\u00f3i c\u00f3 \u0111\u1ed9 d\u1ed1c cao\" width=\"800\" height=\"450\" srcset=\"https:\/\/source-maotrung.s3.vn-hcm-1.vietnix.cloud\/wp-content\/uploads\/2026\/03\/cach-tinh-do-doc-mai-ngoi-7.jpg 800w, https:\/\/source-maotrung.s3.vn-hcm-1.vietnix.cloud\/wp-content\/uploads\/2026\/03\/cach-tinh-do-doc-mai-ngoi-7-300x169.jpg 300w, https:\/\/source-maotrung.s3.vn-hcm-1.vietnix.cloud\/wp-content\/uploads\/2026\/03\/cach-tinh-do-doc-mai-ngoi-7-768x432.jpg 768w, https:\/\/source-maotrung.s3.vn-hcm-1.vietnix.cloud\/wp-content\/uploads\/2026\/03\/cach-tinh-do-doc-mai-ngoi-7-600x338.jpg 600w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-187414\" class=\"wp-caption-text\">C\u1ea7n tr\u00e1nh thi\u1ebft k\u1ebf m\u00e1i ng\u00f3i c\u00f3 \u0111\u1ed9 d\u1ed1c cao<\/figcaption><\/figure>\n<h2 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"8_Mot_so_cau_hoi_thuong_gap\"><\/span><strong>8. M\u1ed9t s\u1ed1 c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"81_Do_doc_mai_ngoi_toi_thieu_de_khong_bi_tham_la_bao_nhieu\"><\/span><strong>8.1. \u0110\u1ed9 d\u1ed1c m\u00e1i ng\u00f3i t\u1ed1i thi\u1ec3u \u0111\u1ec3 kh\u00f4ng b\u1ecb th\u1ea5m l\u00e0 bao nhi\u00eau<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\">\u0110\u1ed9 d\u1ed1c t\u1ed1i thi\u1ec3u l\u00e0 <strong>20 \u0111\u1ed9<\/strong>. Tuy nhi\u00ean, gia ch\u1ee7 \u0111\u01b0\u1ee3c khuy\u1ebfn kh\u00edch n\u00ean l\u1ee3p t\u1eeb <strong>25 \u0111\u1ed9<\/strong> tr\u1edf l\u00ean \u0111\u1ed1i v\u1edbi c\u00e1c lo\u1ea1i ng\u00f3i m\u00e0u hi\u1ec7n \u0111\u1ea1i \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n tuy\u1ec7t \u0111\u1ed1i tr\u01b0\u1edbc m\u1ecdi \u0111i\u1ec1u ki\u1ec7n th\u1eddi ti\u1ebft.<\/p>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"82_Mai_do_be_tong_dan_ngoi_co_can_do_doc_cao_khong\"><\/span><strong>8.2. M\u00e1i \u0111\u1ed5 b\u00ea t\u00f4ng d\u00e1n ng\u00f3i c\u00f3 c\u1ea7n \u0111\u1ed9 d\u1ed1c cao kh\u00f4ng<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\">M\u00e1i d\u00e1n ng\u00f3i tr\u00ean n\u1ec1n b\u00ea t\u00f4ng c\u00f3 th\u1ec3 \u0111\u1ec3 \u0111\u1ed9 d\u1ed1c th\u1ea5p h\u01a1n m\u00e1i l\u1ee3p k\u00e8o, kho\u1ea3ng <strong>20-25 \u0111\u1ed9<\/strong>. Do l\u1edbp b\u00ea t\u00f4ng \u0111\u00e3 \u0111\u00f3ng vai tr\u00f2 ch\u1ed1ng th\u1ea5m ch\u00ednh, nh\u01b0ng v\u1eabn c\u1ea7n \u0111\u1ed9 nghi\u00eang \u0111\u1ec3 tr\u00e1nh r\u00eau m\u1ed1c b\u00e1m tr\u00ean b\u1ec1 m\u1eb7t ng\u00f3i.<\/p>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"83_Lam_the_nao_de_do_chieu_cao_va_chieu_dai_mai_thuc_te_tai_cong_trinh\"><\/span><strong>8.3. L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 \u0111o chi\u1ec1u cao v\u00e0 chi\u1ec1u d\u00e0i m\u00e1i th\u1ef1c t\u1ebf t\u1ea1i c\u00f4ng tr\u00ecnh<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\">B\u1ea1n n\u00ean s\u1eed d\u1ee5ng th\u01b0\u1edbc d\u00e2y \u0111\u1ec3 \u0111o kho\u1ea3ng c\u00e1ch ngang c\u1ee7a ng\u00f4i nh\u00e0. \u0110\u1ec3 x\u00e1c \u0111\u1ecbnh chi\u1ec1u cao \u0111\u1ec9nh m\u00e1i ch\u00ednh x\u00e1c nh\u1ea5t, h\u00e3y s\u1eed d\u1ee5ng m\u00e1y c\u00e2n b\u1eb1ng laser ho\u1eb7c th\u01b0\u1edbc th\u1ee7y t\u00e2m t\u1eeb m\u1eb7t s\u00e0n b\u00ea t\u00f4ng \u0111\u1ebfn \u0111i\u1ec3m cao nh\u1ea5t c\u1ee7a h\u1ec7 k\u00e8o.<\/p>\n<h3 style=\"text-align: justify;\"><span class=\"ez-toc-section\" id=\"84_Loai_ngoi_nao_phu_hop_nhat_cho_mai_co_do_doc_thap\"><\/span><strong>8.4. Lo\u1ea1i ng\u00f3i n\u00e0o ph\u00f9 h\u1ee3p nh\u1ea5t cho m\u00e1i c\u00f3 \u0111\u1ed9 d\u1ed1c th\u1ea5p<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\">Gia ch\u1ee7 n\u00ean ch\u1ecdn ng\u00f3i m\u00e0u xi m\u0103ng c\u00f3 h\u1ec7 th\u1ed1ng g\u1edd ch\u1eafn n\u01b0\u1edbc cao ho\u1eb7c ng\u00f3i Bitum d\u00e1n m\u00e1i. Nh\u1eefng lo\u1ea1i v\u1eadt li\u1ec7u n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 h\u1ea1n ch\u1ebf t\u1ed1i \u0111a vi\u1ec7c n\u01b0\u1edbc tr\u00e0n ng\u01b0\u1ee3c \u1edf nh\u1eefng \u0111\u1ed9 nghi\u00eang th\u1ea5p.<\/p>\n<p><strong>Xem th\u00eam<\/strong>:<\/p>\n<ul>\n<li style=\"text-align: justify;\"><a href=\"https:\/\/maotrung.com\/blogs\/tu-van-chon-mua\/gach-op-tuong-ngoai-that-53179\" target=\"_blank\" rel=\"noopener\">80+ m\u1eabu g\u1ea1ch \u1ed1p t\u01b0\u1eddng ngo\u1ea1i th\u1ea5t, ngo\u00e0i tr\u1eddi b\u1ec1n \u0111\u1eb9p<\/a><\/li>\n<li style=\"text-align: justify;\"><a href=\"https:\/\/maotrung.com\/blogs\/tu-van-chon-mua\/top-mau-gach-op-tuong-mat-tien-dep-49973\" target=\"_blank\" rel=\"noopener\">Top 80+ m\u1eabu g\u1ea1ch \u1ed1p t\u01b0\u1eddng m\u1eb7t ti\u1ec1n \u0111\u1eb9p xu h\u01b0\u1edbng<\/a><\/li>\n<li style=\"text-align: justify;\"><a href=\"https:\/\/maotrung.com\/blogs\/tu-van-chon-mua\/gach-op-tuong-phong-khach-49978\" target=\"_blank\" rel=\"noopener\">Top 50+ m\u1eabu g\u1ea1ch \u1ed1p t\u01b0\u1eddng ph\u00f2ng kh\u00e1ch \u0111\u1eb9p, sang tr\u1ecdng<\/a><\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><em>T\u00ednh to\u00e1n \u0111\u1ed9 d\u1ed1c m\u00e1i ng\u00f3i ch\u00ednh x\u00e1c gi\u00fap b\u1ea3o v\u1ec7 ng\u00f4i nh\u00e0 b\u1ec1n v\u1eefng v\u00e0 t\u1ed1i \u01b0u chi ph\u00ed thi c\u00f4ng. Vi\u1ec7c l\u1ef1a ch\u1ecdn lo\u1ea1i ng\u00f3i ph\u00f9 h\u1ee3p v\u1edbi \u0111\u1ed9 d\u1ed1c s\u1ebd mang l\u1ea1i v\u1ebb \u0111\u1eb9p h\u00e0i h\u00f2a v\u00e0 \u0111\u1ea3m b\u1ea3o an to\u00e0n cho gia \u0111\u00ecnh. Li\u00ean h\u1ec7 ngay Mao Trung Home \u0111\u1ec3 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 b\u00f3c t\u00e1ch v\u1eadt t\u01b0 chu\u1ea9n x\u00e1c.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ng\u00f4i nh\u00e0 b\u1ec1n \u0111\u1eb9p c\u1ea7n m\u00e1i nh\u00e0 c\u00f3 \u0111\u1ed9 d\u1ed1c chu\u1ea9n \u0111\u1ec3 tho\u00e1t n\u01b0\u1edbc nhanh v\u00e0 ch\u1ed1ng th\u1ea5m d\u1ed9t. Vi\u1ec7c n\u1eafm v\u1eefng c\u00e1ch t\u00ednh \u0111\u1ed9 d\u1ed1c gi\u00fap gia ch\u1ee7 ch\u1ee7 \u0111\u1ed9ng trong vi\u1ec7c chu\u1ea9n b\u1ecb v\u1eadt t\u01b0 v\u00e0 gi\u00e1m s\u00e1t thi c\u00f4ng. B\u00e0i vi\u1ebft n\u00e0y cung c\u1ea5p c\u00e1ch t\u00ednh \u0111\u1ed9 d\u1ed1c m\u00e1i ng\u00f3i v\u1edbi c\u00f4ng&#8230;<\/p>\n","protected":false},"author":5,"featured_media":187406,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[3921,3926],"tags":[4635],"class_list":["post-187334","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-kien-thuc-chung","category-cung-cap-thong-tin","tag-cach-tinh-do-doc-mai-ngoi"],"acf":[],"_links":{"self":[{"href":"https:\/\/maotrung.com\/blogs\/wp-json\/wp\/v2\/posts\/187334","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/maotrung.com\/blogs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/maotrung.com\/blogs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/maotrung.com\/blogs\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/maotrung.com\/blogs\/wp-json\/wp\/v2\/comments?post=187334"}],"version-history":[{"count":7,"href":"https:\/\/maotrung.com\/blogs\/wp-json\/wp\/v2\/posts\/187334\/revisions"}],"predecessor-version":[{"id":189067,"href":"https:\/\/maotrung.com\/blogs\/wp-json\/wp\/v2\/posts\/187334\/revisions\/189067"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/maotrung.com\/blogs\/wp-json\/wp\/v2\/media\/187406"}],"wp:attachment":[{"href":"https:\/\/maotrung.com\/blogs\/wp-json\/wp\/v2\/media?parent=187334"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/maotrung.com\/blogs\/wp-json\/wp\/v2\/categories?post=187334"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/maotrung.com\/blogs\/wp-json\/wp\/v2\/tags?post=187334"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}