{"id":1266,"date":"2026-03-24T16:03:41","date_gmt":"2026-03-24T09:03:41","guid":{"rendered":"https:\/\/tonphumy.com.vn\/?p=1266"},"modified":"2026-03-31T15:39:58","modified_gmt":"2026-03-31T08:39:58","slug":"1m2-ton-ma-mau-bang-bao-nhieu-kg","status":"publish","type":"post","link":"https:\/\/tonphumy.com.vn\/en\/tin-tuc\/1m2-ton-ma-mau-bang-bao-nhieu-kg\/","title":{"rendered":"1m2 t\u00f4n m\u1ea1 m\u00e0u b\u1eb1ng bao nhi\u00eau kg? C\u00e1ch t\u00ednh kh\u1ed1i l\u01b0\u1ee3ng t\u00f4n m\u1ea1 m\u00e0u chu\u1ea9n, d\u1ec5 hi\u1ec3u"},"content":{"rendered":"

C\u00e2u h\u1ecfi 1m2 t\u00f4n m\u1ea1 m\u00e0u b\u1eb1ng bao nhi\u00eau kg<\/strong> lu\u00f4n \u0111\u01b0\u1ee3c nhi\u1ec1u ng\u01b0\u1eddi quan t\u00e2m khi c\u1ea7n d\u1ef1 to\u00e1n v\u1eadt t\u01b0 v\u00e0 t\u00ednh to\u00e1n t\u1ea3i tr\u1ecdng cho c\u00f4ng tr\u00ecnh. Th\u1ef1c t\u1ebf, 1m2 t\u00f4n m\u1ea1 m\u00e0u n\u1eb7ng kho\u1ea3ng 2,5 kg \u0111\u1ebfn 4,5 kg, t\u00f9y thu\u1ed9c v\u00e0o \u0111\u1ed9 d\u00e0y (dem\/mm) c\u1ee7a t\u00f4n. M\u1eddi b\u1ea1n c\u00f9ng t\u00ecm hi\u1ec3u chi ti\u1ebft c\u00f4ng th\u1ee9c t\u00ednh kh\u1ed1i l\u01b0\u1ee3ng chu\u1ea9n x\u00e1c v\u00e0 nh\u1eefng l\u01b0u \u00fd khi nghi\u1ec7m thu v\u1eadt t\u01b0 ngay trong b\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y!<\/span><\/em><\/p>\n

<\/span>1. 1m2 t\u00f4n m\u1ea1 m\u00e0u b\u1eb1ng bao nhi\u00eau kg?<\/span><\/strong><\/span><\/h2>\n

Tr\u00ean th\u1ef1c t\u1ebf, trung b\u00ecnh 1m2 t\u00f4n m\u1ea1 m\u00e0u s\u1ebd c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng kho\u1ea3ng 3 – 3,5 kg. \u0110\u1ec3 b\u1ea1n d\u1ec5 d\u00e0ng tra c\u1ee9u nhanh, d\u01b0\u1edbi \u0111\u00e2y l\u00e0 b\u1ea3ng quy \u0111\u1ed5i tr\u1ecdng l\u01b0\u1ee3ng d\u1ef1a tr\u00ean c\u00e1c \u0111\u1ed9 d\u00e0y ph\u1ed5 bi\u1ebfn v\u1edbi di\u1ec7n t\u00edch 1m2:<\/span><\/p>\n\n\n\n\n\n\n\n\n
\n

\u0110\u1ed9 d\u00e0y T (mm)<\/strong><\/span><\/p>\n<\/td>\n

\n

C\u00f4ng th\u1ee9c t\u00ednh<\/strong><\/span><\/p>\n<\/td>\n

\n

Kh\u1ed1i l\u01b0\u1ee3ng m (kg)<\/strong><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

0.30<\/span><\/p>\n<\/td>\n

\n

0.30 \u00d7 1 \u00d7 7.85<\/span><\/p>\n<\/td>\n

\n

2.355 kg<\/span><\/p>\n<\/td>\n<\/tr>\n

\n

0.35<\/span><\/p>\n<\/td>\n

\n

0.35 \u00d7 1 \u00d7 7.85<\/span><\/p>\n<\/td>\n

\n

2.748 kg<\/span><\/p>\n<\/td>\n<\/tr>\n

\n

0.40<\/span><\/p>\n<\/td>\n

\n

0.40 \u00d7 1 \u00d7 7.85<\/span><\/p>\n<\/td>\n

\n

3.140 kg<\/span><\/p>\n<\/td>\n<\/tr>\n

\n

0.45<\/span><\/p>\n<\/td>\n

\n

0.45 \u00d7 1 \u00d7 7.85<\/span><\/p>\n<\/td>\n

\n

3.533 kg<\/span><\/p>\n<\/td>\n<\/tr>\n

\n

0.50<\/span><\/p>\n<\/td>\n

\n

0.50 \u00d7 1 \u00d7 7.85<\/span><\/p>\n<\/td>\n

\n

3.925 kg<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\"Tr\u00ean
Tr\u00ean th\u1ef1c t\u1ebf, trung b\u00ecnh 1m\u00b2 t\u00f4n m\u1ea1 m\u00e0u s\u1ebd c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng kho\u1ea3ng 3 – 3,5 kg<\/em><\/span><\/figcaption><\/figure>\n

<\/span>2. C\u00f4ng th\u1ee9c t\u00ednh ch\u00ednh x\u00e1c \u0111\u1ec3 bi\u1ebft 1m2 t\u00f4n m\u1ea1 m\u00e0u b\u1eb1ng bao nhi\u00eau kg<\/span><\/strong><\/span><\/h2>\n

\u0110\u1ec3 c\u00f3 con s\u1ed1 ch\u00ednh x\u00e1c tuy\u1ec7t \u0111\u1ed1i, ch\u00fang ta kh\u00f4ng th\u1ec3 d\u00f9ng m\u1ed9t m\u1ee9c tr\u1ecdng l\u01b0\u1ee3ng c\u1ed1 \u0111\u1ecbnh v\u00ec n\u00f3 ph\u1ee5 thu\u1ed9c ho\u00e0n to\u00e0n v\u00e0o \u0111\u1ed9 d\u00e0y c\u1ee7a t\u1ea5m th\u00e9p n\u1ec1n. C\u00e1ch quy \u0111\u1ed5i t\u00f4n m\u1ea1 m\u00e0u t\u1eeb m2 sang kg<\/strong> \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng theo c\u00f4ng th\u1ee9c t\u00ednh kh\u1ed1i l\u01b0\u1ee3ng ri\u00eang ti\u00eau chu\u1ea9n nh\u01b0 sau:<\/span><\/p>\n

m = T x W x 7.85<\/span><\/strong><\/p>\n

Trong \u0111\u00f3:<\/span><\/strong><\/p>\n

    \n
  • m:<\/strong> Kh\u1ed1i l\u01b0\u1ee3ng (\u0111\u01a1n v\u1ecb: kg\/m2)<\/span><\/li>\n
  • T:<\/strong> \u0110\u1ed9 d\u00e0y c\u1ee7a t\u1ea5m t\u00f4n (\u0111\u01a1n v\u1ecb: mm)<\/span><\/li>\n
  • W: <\/strong>Di\u1ec7n t\u00edch t\u1ea5m t\u00f4n (m2), tr\u01b0\u1eddng h\u1ee3p n\u00e0y W = 1<\/span><\/li>\n
  • 7.85:<\/strong> Tr\u1ecdng l\u01b0\u1ee3ng ri\u00eang c\u1ee7a th\u00e9p (\u0111\u01a1n v\u1ecb: g\/cm3 ho\u1eb7c kg\/dm3). \u0110\u00e2y l\u00e0 h\u1eb1ng s\u1ed1 ti\u00eau chu\u1ea9n cho th\u00e9p c\u00e1n.<\/span><\/li>\n<\/ul>\n

    V\u00ed d\u1ee5 c\u1ee5 th\u1ec3:<\/strong> Gi\u1ea3 s\u1eed b\u1ea1n \u0111ang c\u1ea7n t\u00ednh kh\u1ed1i l\u01b0\u1ee3ng cho 1m2 t\u00f4n m\u1ea1 m\u00e0u c\u00f3 \u0111\u1ed9 d\u00e0y 0.50 mm (t\u01b0\u01a1ng \u0111\u01b0\u01a1ng 5 dem). \u00c1p d\u1ee5ng v\u00e0o c\u00f4ng th\u1ee9c tr\u00ean, ta c\u00f3 c\u00e1c th\u00f4ng s\u1ed1:<\/span><\/p>\n

      \n
    • T = 0.50 (mm)<\/span><\/li>\n
    • W = 1 (m2)<\/span><\/li>\n
    • H\u1eb1ng s\u1ed1 = 7.85<\/span><\/li>\n<\/ul>\n

      Thay s\u1ed1 v\u00e0o c\u00f4ng th\u1ee9c:<\/strong> m = 0.50 x 1 x 7.85 = 3.925 (kg).<\/span><\/p>\n

      K\u1ebft lu\u1eadn t\u1eeb v\u00ed d\u1ee5:<\/strong> Nh\u01b0 v\u1eady, 1m2 t\u00f4n m\u1ea1 m\u00e0u d\u00e0y 0.50 mm s\u1ebd n\u1eb7ng kho\u1ea3ng 3.925 kg<\/strong> (trong th\u1ef1c t\u1ebf giao d\u1ecbch v\u00e0 b\u00e1o gi\u00e1 th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u00e0m tr\u00f2n th\u00e0nh 3.93 kg<\/strong>).<\/span><\/p>\n

      L\u01b0u \u00fd:<\/strong> C\u00f4ng th\u1ee9c quy \u0111\u1ed5i n\u00e0y \u0111\u01b0\u1ee3c t\u00ednh d\u1ef1a tr\u00ean l\u00f5i th\u00e9p. Trong th\u1ef1c t\u1ebf, t\u00f4n m\u1ea1 m\u00e0u c\u00f2n bao g\u1ed3m l\u1edbp m\u1ea1 h\u1ee3p kim (k\u1ebdm ho\u1eb7c nh\u00f4m k\u1ebdm) v\u00e0 h\u1ec7 s\u01a1n ph\u1ee7 b\u1ec1 m\u1eb7t. Tuy nhi\u00ean, tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a c\u00e1c l\u1edbp n\u00e0y r\u1ea5t nh\u1ecf so v\u1edbi l\u00f5i th\u00e9p n\u1ec1n n\u00ean sai s\u1ed1 kh\u00f4ng \u0111\u00e1ng k\u1ec3. N\u1ebfu b\u1ea1n c\u1ea7n \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ef1c cao \u0111\u1ec3 t\u00ednh to\u00e1n t\u1ea3i tr\u1ecdng cho c\u00e1c d\u1ef1 \u00e1n quy m\u00f4 r\u1ea5t l\u1edbn, c\u00f3 th\u1ec3 c\u1ed9ng th\u00eam kho\u1ea3ng 2-3% v\u00e0o k\u1ebft qu\u1ea3 t\u00ednh to\u00e1n.<\/span><\/p>\n

      \"Kh\u1ed1i
      Kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a 1m2 t\u00f4n m\u1ea1 m\u00e0u ph\u1ee5 thu\u1ed9c v\u00e0o \u0111\u1ed9 d\u00e0y c\u1ee7a t\u1ea5m t\u00f4n<\/em><\/span><\/figcaption><\/figure>\n

      <\/span>3. Nh\u1eefng l\u01b0u \u00fd v\u1ec1 c\u00e1ch t\u00ednh 1m2 t\u00f4n m\u1ea1 m\u00e0u b\u1eb1ng bao nhi\u00eau kg<\/span><\/strong><\/span><\/h2>\n

      C\u00f9ng \u0111i\u1ec3m qua m\u1ed9t s\u1ed1 l\u01b0u \u00fd v\u1ec1 c\u00e1ch t\u00ednh 1m2 t\u00f4n m\u1ea1 m\u00e0u b\u1eb1ng bao nhi\u00eau kg:<\/span><\/p>\n

      1 – C\u00f4ng th\u1ee9c ch\u1ec9 \u0111\u00fang khi t\u00ednh theo di\u1ec7n t\u00edch ph\u1eb3ng<\/strong><\/span><\/p>\n

      C\u00f4ng th\u1ee9c m = T x W x 7.85 <\/strong>\u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng \u0111\u1ec3 t\u00ednh theo m\u00b2 t\u00f4n ph\u1eb3ng<\/strong>. Khi t\u1ea5m t\u00f4n ph\u1eb3ng \u0111\u00e3 \u0111\u01b0\u1ee3c gia c\u00f4ng c\u00e1n th\u00e0nh t\u00f4n s\u00f3ng vu\u00f4ng ho\u1eb7c t\u00f4n s\u00f3ng tr\u00f2n, di\u1ec7n t\u00edch th\u1ef1c t\u1ebf b\u1ec1 m\u1eb7t s\u1ebd l\u1edbn h\u01a1n di\u1ec7n t\u00edch ph\u1ee7 b\u00ec. Do \u0111\u00f3, tr\u1ecdng l\u01b0\u1ee3ng th\u1ef1c t\u1ebf c\u1ee7a 1m2 m\u1eb7t b\u1eb1ng m\u00e1i sau khi l\u1ee3p s\u1ebd cao h\u01a1n m\u1ed9t ch\u00fat so v\u1edbi t\u00f4n cu\u1ed9n ph\u1eb3ng ban \u0111\u1ea7u.<\/span><\/p>\n

      2 – L\u01b0u \u00fd v\u1ec1 dung sai \u00e2m <\/strong><\/span><\/p>\n

      Khi nh\u00e0 cung c\u1ea5p b\u00e1o gi\u00e1 t\u00f4n d\u00e0y 0.40mm<\/strong>, \u0111\u00e2y th\u01b0\u1eddng l\u00e0 \u0111\u1ed9 d\u00e0y danh ngh\u0129a. Trong s\u1ea3n xu\u1ea5t, c\u00e1c nh\u00e0 m\u00e1y th\u01b0\u1eddng \u00e1p d\u1ee5ng dung sai \u00e2m (v\u00ed d\u1ee5: th\u00f4ng s\u1ed1 0.40mm nh\u01b0ng th\u1ef1c t\u1ebf c\u00f3 th\u1ec3 ch\u1ec9 \u0111\u1ea1t 0.38mm ho\u1eb7c 0.37mm).<\/span><\/p>\n

      H\u1ec7 qu\u1ea3<\/strong> l\u00e0 b\u1ea1n t\u00ednh ti\u1ec1n d\u1ef1a tr\u00ean \u0111\u1ecbnh m\u1ee9c 0.40mm nh\u01b0ng nh\u1eadn l\u1ea1i s\u1ea3n ph\u1ea9m nh\u1eb9 h\u01a1n, \u0111\u1ed3ng ngh\u0129a v\u1edbi vi\u1ec7c \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ef1c c\u1ee7a c\u00f4ng tr\u00ecnh th\u1ea5p h\u01a1n d\u1ef1 ki\u1ebfn. C\u00e1ch ki\u1ec3m so\u00e1t<\/strong> t\u1ed1t nh\u1ea5t l\u00e0 b\u1ea1n h\u00e3y lu\u00f4n y\u00eau c\u1ea7u r\u00f5 th\u00f4ng s\u1ed1 dung sai t\u1eeb nh\u00e0 m\u00e1y ho\u1eb7c s\u1eed d\u1ee5ng th\u01b0\u1edbc \u0111o panme chuy\u00ean d\u1ee5ng \u0111\u1ec3 ki\u1ec3m tra \u0111\u1ed9 d\u00e0y th\u1ef1c t\u1ebf t\u1ea1i ch\u00e2n c\u00f4ng tr\u00ecnh tr\u01b0\u1edbc khi nh\u1eadp kho.<\/span><\/p>\n

      3 – Tr\u1ecdng l\u01b0\u1ee3ng l\u1edbp m\u1ea1 v\u00e0 l\u1edbp s\u01a1n<\/strong><\/span><\/p>\n

      Nh\u01b0 \u0111\u00e3 \u0111\u1ec1 c\u1eadp, c\u00f4ng th\u1ee9c c\u01a1 b\u1ea3n l\u1ea5y h\u1eb1ng s\u1ed1 7.85 (t\u1ec9 tr\u1ecdng th\u00e9p) l\u00e0m chu\u1ea9n. Kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a l\u1edbp m\u1ea1 v\u00e0 l\u1edbp s\u01a1n ph\u1ee7 (m\u1eb7t tr\u00ean v\u00e0 l\u1edbp s\u01a1n l\u00f3t m\u1eb7t d\u01b0\u1edbi) th\u01b0\u1eddng kh\u00f4ng \u0111\u00e1ng k\u1ec3 v\u1edbi c\u00e1c \u0111\u01a1n h\u00e0ng nh\u1ecf. Nh\u01b0ng v\u1edbi c\u00e1c c\u00f4ng tr\u00ecnh quy m\u00f4 h\u00e0ng ch\u1ee5c ng\u00e0n m2, kh\u1ed1i l\u01b0\u1ee3ng ph\u1ea7n n\u00e0y c\u00f3 th\u1ec3 chi\u1ebfm t\u1eeb 1% – 2% t\u1ed5ng tr\u1ecdng l\u01b0\u1ee3ng<\/strong>. H\u00e3y c\u00e2n nh\u1eafc y\u1ebfu t\u1ed1 n\u00e0y n\u1ebfu b\u1ea1n c\u1ea7n t\u00ednh ch\u00ednh x\u00e1c tuy\u1ec7t \u0111\u1ed1i v\u1ec1 c\u01b0\u1edbc v\u1eadn chuy\u1ec3n v\u00e0 t\u1ea3i tr\u1ecdng k\u1ebft c\u1ea5u.<\/span><\/p>\n

      4 – L\u01b0u \u00fd khi nghi\u1ec7m thu <\/strong><\/span><\/p>\n

      Khi nh\u1eadn b\u00e0n giao v\u1eadt t\u01b0, b\u1ea1n kh\u00f4ng n\u00ean ch\u1ec9 d\u1ef1a v\u00e0o c\u00e2n n\u1eb7ng t\u1ed5ng (v\u00ec d\u1ec5 b\u1ecb b\u00f9 tr\u1eeb do \u0111\u1ed9 \u1ea9m ho\u1eb7c sai s\u1ed1 c\u1ee7a c\u00e2n). Quy tr\u00ecnh nghi\u1ec7m thu chu\u1ea9n c\u1ea7n k\u1ebft h\u1ee3p:<\/span><\/p>\n