{"id":1074,"date":"2026-03-23T08:30:43","date_gmt":"2026-03-23T08:30:43","guid":{"rendered":"https:\/\/www.geo-tester.com\/?post_type=method&#038;p=1074"},"modified":"2026-04-08T05:56:26","modified_gmt":"2026-04-08T05:56:26","slug":"strip-tensile-test","status":"publish","type":"method","link":"https:\/\/www.geo-tester.com\/vi\/method\/strip-tensile-test\/","title":{"rendered":"Th\u1eed nghi\u1ec7m \u0111\u1ed9 b\u1ec1n k\u00e9o d\u1ea3i"},"content":{"rendered":"<p class=\"wp-block-paragraph\">C\u00e1i <strong>th\u1eed nghi\u1ec7m \u0111\u1ed9 b\u1ec1n k\u00e9o d\u1ea3i<\/strong> \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c \u0111\u00e1nh gi\u00e1 hi\u1ec7u su\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a m\u00e0ng \u0111\u1ecba k\u1ef9 thu\u1eadt gia c\u1ed1 v\u00e0 c\u00e1c v\u1eadt li\u1ec7u \u0111\u1ecba t\u1ed5ng h\u1ee3p li\u00ean quan. C\u00e1c k\u1ef9 s\u01b0 v\u00e0 chuy\u00ean gia ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng d\u1ef1a v\u00e0o ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh <strong>\u0111\u1ed9 b\u1ec1n k\u00e9o, \u0111\u1ed9 gi\u00e3n d\u00e0i v\u00e0 \u0111\u1eb7c t\u00ednh ph\u00e1 h\u1ee7y<\/strong> trong \u0111i\u1ec1u ki\u1ec7n \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00e1c v\u1edbi c\u00e1c ph\u01b0\u01a1ng ph\u00e1p th\u1eed nghi\u1ec7m tr\u00ean m\u1eabu r\u1ed9ng, th\u1eed nghi\u1ec7m k\u00e9o tr\u00ean d\u1ea3i t\u1eadp trung v\u00e0o m\u1ed9t <strong>m\u1eabu h\u1eb9p<\/strong>, cho ph\u00e9p ph\u00e2n t\u00edch ch\u00ednh x\u00e1c m\u1ee9c \u0111\u1ed9 \u0111\u00f3ng g\u00f3p c\u1ee7a l\u1edbp gia c\u1ed1 trong c\u00e1c m\u00e0ng \u0111\u1ecba k\u1ef9 thu\u1eadt. \u0110i\u1ec1u n\u00e0y khi\u1ebfn n\u00f3 tr\u1edf n\u00ean \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch cho <strong>\u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 \u0111\u00e1nh gi\u00e1 so s\u00e1nh v\u1eadt li\u1ec7u<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">ASTM D7003 \u2013 Th\u1eed nghi\u1ec7m \u0111\u1ed9 b\u1ec1n k\u00e9o c\u1ee7a m\u00e0ng \u0111\u1ecba k\u1ef9 thu\u1eadt gia c\u1ed1<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1i <strong>th\u1eed nghi\u1ec7m \u0111\u1ed9 b\u1ec1n k\u00e9o d\u1ea3i<\/strong> Ti\u00eau chu\u1ea9n ASTM D7003 \u0111\u01b0\u1ee3c ban h\u00e0nh nh\u1eb1m c\u1ee5 th\u1ec3 nh\u1eafm \u0111\u1ebfn c\u00e1c lo\u1ea1i m\u00e0ng \u0111\u1ecba k\u1ef9 thu\u1eadt gia c\u1ed1, trong \u0111\u00f3 c\u1ea5u tr\u00fac v\u1ea3i b\u00ean trong c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u00e1ng k\u1ec3 \u0111\u1ebfn hi\u1ec7u su\u1ea5t.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1c nguy\u00ean t\u1eafc c\u01a1 b\u1ea3n<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0110o c\u00e1c t\u00ednh ch\u1ea5t k\u00e9o d\u1ecdc theo c\u00e1c h\u01b0\u1edbng c\u1ee7a c\u1ed1t th\u00e9p<\/li>\n\n\n\n<li>\u0110\u00e1nh gi\u00e1 c\u1ea3 hai <strong>ma tr\u1eadn polymer v\u00e0 c\u00e1c s\u1ee3i \u0111\u01b0\u1ee3c nh\u00fang v\u00e0o<\/strong><\/li>\n\n\n\n<li>Cung c\u1ea5p c\u00e1c gi\u00e1 tr\u1ecb ch\u1ec9 s\u1ed1 cho <strong>ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 nghi\u00ean c\u1ee9u<\/strong><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">M\u00f4i tr\u01b0\u1eddng th\u1eed nghi\u1ec7m<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh nh\u1ea5t qu\u00e1n, vi\u1ec7c th\u1eed nghi\u1ec7m c\u1ea7n \u0111\u01b0\u1ee3c ti\u1ebfn h\u00e0nh trong \u0111i\u1ec1u ki\u1ec7n kh\u00ed quy\u1ec3n \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Nhi\u1ec7t \u0111\u1ed9: <strong>21 \u00b1 2\u00b0C<\/strong><\/li>\n\n\n\n<li>\u0110\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i: <strong>50\u201370%<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c th\u00f4ng s\u1ed1 n\u00e0y gi\u00fap gi\u1ea3m \u0111\u1ed9 bi\u1ebfn thi\u00ean v\u00e0 n\u00e2ng cao \u0111\u1ed9 t\u00e1i hi\u1ec7n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Quy tr\u00ecnh th\u1eed nghi\u1ec7m \u0111\u1ed9 b\u1ec1n k\u00e9o c\u1ee7a m\u00e0ng \u0111\u1ecba k\u1ef9 thu\u1eadt gia c\u1ed1<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Chu\u1ea9n b\u1ecb m\u1eabu<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c chu\u1ea9n b\u1ecb m\u1eabu th\u1eed \u0111\u00fang c\u00e1ch l\u00e0 y\u1ebfu t\u1ed1 thi\u1ebft y\u1ebfu \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o k\u1ebft qu\u1ea3 th\u1eed nghi\u1ec7m \u0111\u1ed9 b\u1ec1n k\u00e9o theo ph\u01b0\u01a1ng ph\u00e1p d\u1ea3i ch\u00ednh x\u00e1c:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Chi\u1ec1u r\u1ed9ng: <strong>25 mm (1 inch)<\/strong><\/li>\n\n\n\n<li>Chi\u1ec1u d\u00e0i: T\u1ed1i thi\u1ec3u <strong>150 mm<\/strong><\/li>\n\n\n\n<li>H\u01b0\u1edbng: Song song v\u1edbi c\u1ed1t th\u00e9p (MD ho\u1eb7c TD)<\/li>\n\n\n\n<li>S\u1ed1 l\u01b0\u1ee3ng: \u00cdt nh\u1ea5t <strong>5 m\u1eabu cho m\u1ed7i h\u01b0\u1edbng<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>L\u01b0u \u00fd quan tr\u1ecdng:<\/strong> S\u1ee3i gia c\u01b0\u1eddng ph\u1ea3i \u0111\u01b0\u1ee3c duy tr\u00ec li\u00ean t\u1ee5c gi\u1eefa c\u00e1c \u0111i\u1ec3m k\u1eb9p. B\u1ea5t k\u1ef3 s\u1ef1 gi\u00e1n \u0111o\u1ea1n n\u00e0o c\u0169ng c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m \u0111\u00e1ng k\u1ec3 \u0111\u1ed9 b\u1ec1n k\u00e9o \u0111o \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u1ea5u h\u00ecnh th\u1eed nghi\u1ec7m<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kho\u1ea3ng c\u00e1ch ban \u0111\u1ea7u gi\u1eefa c\u00e1c k\u1eb9p: <strong>75 mm<\/strong><\/li>\n\n\n\n<li>V\u1ecb tr\u00ed: M\u1eabu \u0111\u01b0\u1ee3c \u0111\u1eb7t ch\u00ednh gi\u1eefa v\u00e0 song song v\u1edbi c\u00e1c k\u1eb9p<\/li>\n\n\n\n<li>T\u1ed1c \u0111\u1ed9 th\u1eed nghi\u1ec7m: <strong>300 mm\/ph\u00fat<\/strong><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Th\u1ef1c thi<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Trong qu\u00e1 tr\u00ecnh th\u1eed nghi\u1ec7m k\u00e9o d\u1ea3i:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>T\u00e1c d\u1ee5ng l\u1ef1c k\u00e9o cho \u0111\u1ebfn khi x\u1ea3y ra s\u1ef1 h\u1ecfng h\u00f3c ho\u00e0n to\u00e0n<\/li>\n\n\n\n<li>Ghi l\u1ea1i <strong>\u0111\u01b0\u1eddng cong t\u1ea3i-d\u00e3n d\u00e0i<\/strong><\/li>\n\n\n\n<li>Theo d\u00f5i hi\u1ec7n t\u01b0\u1ee3ng tr\u01b0\u1ee3t ho\u1eb7c c\u00e1c ki\u1ec3u \u0111\u1ee9t b\u1ea5t th\u01b0\u1eddng<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c k\u1ebft qu\u1ea3 kh\u00f4ng h\u1ee3p l\u1ec7 c\u1ea7n \u0111\u01b0\u1ee3c lo\u1ea1i b\u1ecf v\u00e0 ti\u1ebfn h\u00e0nh ki\u1ec3m tra l\u1ea1i \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a d\u1eef li\u1ec7u.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Ph\u01b0\u01a1ng ph\u00e1p th\u1eed \u0111\u1ed9 b\u1ec1n k\u00e9o c\u1ee7a m\u00e0ng \u0111\u1ecba k\u1ef9 thu\u1eadt: D\u1eef li\u1ec7u v\u00e0 t\u00ednh to\u00e1n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Th\u1eed nghi\u1ec7m k\u00e9o d\u1ea3i cho k\u1ebft qu\u1ea3 m\u1ed9t s\u1ed1 th\u00f4ng s\u1ed1 quan tr\u1ecdng:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u0110\u1ed9 b\u1ec1n k\u00e9o<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u01b0\u1ee3c t\u00ednh nh\u01b0 sau:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>T\u1ea3i tr\u1ecdng t\u1ed1i \u0111a chia cho chi\u1ec1u r\u1ed9ng m\u1eabu th\u1eed<\/li>\n\n\n\n<li>\u0110\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng <strong>kN\/m<\/strong><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u0110\u1ed9 gi\u00e3n d\u00e0i<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0110\u1ed9 gi\u00e3n d\u00e0i chia cho chi\u1ec1u d\u00e0i chu\u1ea9n ban \u0111\u1ea7u (75 mm)<\/li>\n\n\n\n<li>\u0110\u01b0\u1ee3c b\u00e1o c\u00e1o l\u00e0 <strong>t\u1ef7 l\u1ec7 ph\u1ea7n tr\u0103m (%)<\/strong><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1c k\u1ebft qu\u1ea3 b\u1ed5 sung<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>T\u1ea3i t\u1ea1i \u0111i\u1ec3m \u0111\u1ec9nh v\u00e0 \u0111i\u1ec3m \u0111\u1ee9t<\/li>\n\n\n\n<li>\u0110\u1ed9 gi\u00e3n d\u00e0i t\u1ea1i \u0111i\u1ec3m c\u1ef1c \u0111\u1ea1i v\u00e0 \u0111i\u1ec3m \u0111\u1ee9t<\/li>\n\n\n\n<li>Gi\u00e1 tr\u1ecb trung b\u00ecnh v\u00e0 \u0111\u1ed9 l\u1ec7ch chu\u1ea9n<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1eefng k\u1ebft qu\u1ea3 n\u00e0y gi\u00fap ch\u00fang ta c\u00f3 c\u00e1i nh\u00ecn to\u00e0n di\u1ec7n v\u1ec1 h\u00e0nh vi c\u1ee7a v\u1eadt li\u1ec7u khi ch\u1ecbu \u1ee9ng su\u1ea5t k\u00e9o.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Th\u1eed nghi\u1ec7m \u0111\u1ed9 gi\u00e3n d\u00e0i c\u1ee7a m\u00e0ng \u0111\u1ecba k\u1ef9 thu\u1eadt v\u00e0 \u0111\u00e1nh gi\u00e1 hi\u1ec7u su\u1ea5t<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1i <strong>Th\u1eed nghi\u1ec7m \u0111\u1ed9 gi\u00e3n d\u00e0i c\u1ee7a m\u00e0ng ch\u1ed1ng th\u1ea5m<\/strong>, trong khu\u00f4n kh\u1ed5 th\u1eed nghi\u1ec7m k\u00e9o d\u1ea3i, cho th\u1ea5y c\u00e1ch c\u00e1c v\u1eadt li\u1ec7u bi\u1ebfn d\u1ea1ng tr\u01b0\u1edbc khi b\u1ecb h\u1ecfng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Nh\u1eefng nh\u1eadn \u0111\u1ecbnh ch\u00ednh<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0110\u1ed9 gi\u00e3n d\u00e0i cao cho th\u1ea5y <strong>\u0111\u1ed9 linh ho\u1ea1t v\u00e0 \u0111\u1ed9 d\u1ebbo<\/strong><\/li>\n\n\n\n<li>\u0110\u1ed9 gi\u00e3n d\u00e0i th\u1ea5p cho th\u1ea5y <strong>\u0111\u1ed9 c\u1ee9ng ho\u1eb7c \u0111\u1ed9 gi\u00f2n<\/strong><\/li>\n\n\n\n<li>C\u00e1c \u0111\u1eb7c t\u00ednh c\u00e2n b\u1eb1ng \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t t\u1ed1i \u01b0u trong th\u1ef1c t\u1ebf<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00e1c lo\u1ea1i m\u00e0ng \u0111\u1ecba k\u1ef9 thu\u1eadt gia c\u1ed1, \u0111\u1ed9 gi\u00e3n d\u00e0i ph\u1ea3n \u00e1nh s\u1ef1 t\u01b0\u01a1ng t\u00e1c gi\u1eefa <strong>c\u00e1c l\u1edbp polymer v\u00e0 v\u1eadt li\u1ec7u gia c\u1ed1 d\u1ec7t may<\/strong>, khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh m\u1ed9t th\u00f4ng s\u1ed1 quan tr\u1ecdng trong vi\u1ec7c \u0111\u00e1nh gi\u00e1 \u0111\u1ed9 b\u1ec1n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u0110\u1ec1 xu\u1ea5t thi\u1ebft b\u1ecb cho th\u1eed nghi\u1ec7m k\u00e9o d\u1ea3i<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 th\u1eed nghi\u1ec7m \u0111\u1ed9 b\u1ec1n k\u00e9o d\u1ea3i th\u00e9p \u0111\u00e1ng tin c\u1eady v\u00e0 c\u00f3 th\u1ec3 l\u1eb7p l\u1ea1i, vi\u1ec7c l\u1ef1a ch\u1ecdn m\u1ed9t h\u1ec7 th\u1ed1ng th\u1eed nghi\u1ec7m \u0111\u1ed9 b\u1ec1n k\u00e9o ch\u1ea5t l\u01b0\u1ee3ng cao l\u00e0 \u0111i\u1ec1u v\u00f4 c\u00f9ng quan tr\u1ecdng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1i <strong>M\u00e1y th\u1eed \u0111\u1ed9 b\u1ec1n k\u00e9o Cell Instruments TST-01<\/strong> mang l\u1ea1i m\u1ed9t s\u1ed1 l\u1ee3i \u00edch:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u0110i\u1ec1u khi\u1ec3n PLC \u1ed5n \u0111\u1ecbnh v\u1edbi hi\u1ec3n th\u1ecb \u0111\u1ed3 th\u1ecb theo th\u1eddi gian th\u1ef1c<\/strong> \u0111\u1ea3m b\u1ea3o vi\u1ec7c gi\u00e1m s\u00e1t ch\u00ednh x\u00e1c<\/li>\n\n\n\n<li><strong>D\u1ea3i t\u1ed1c \u0111\u1ed9 r\u1ed9ng (1\u2013500 mm\/ph\u00fat)<\/strong> h\u1ed7 tr\u1ee3 <a href=\"https:\/\/store.astm.org\/d7003_d7003m-03r21.html\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">ASTM D7003<\/a> y\u00eau c\u1ea7u<\/li>\n\n\n\n<li><strong>\u0110\u1ed9 ch\u00ednh x\u00e1c cao (0,51 TP5T FS)<\/strong> \u0111\u1ea3m b\u1ea3o mang l\u1ea1i k\u1ebft qu\u1ea3 \u0111\u00e1ng tin c\u1eady<\/li>\n\n\n\n<li><strong>Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u1edbi c\u00e1c lo\u1ea1i gi\u00e1 \u0111\u1ee1 linh ho\u1ea1t<\/strong> cho ph\u00e9p th\u1eed nghi\u1ec7m c\u00e1c lo\u1ea1i v\u1eadt li\u1ec7u kh\u00e1c nhau<\/li>\n\n\n\n<li><strong>C\u1ea5u tr\u00fac c\u01a1 kh\u00ed ch\u1eafc ch\u1eafn<\/strong> \u0111\u1ea3m b\u1ea3o s\u1ef1 \u1ed5n \u0111\u1ecbnh ho\u1ea1t \u0111\u1ed9ng l\u00e2u d\u00e0i<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Thi\u1ebft k\u1ebf c\u1ee7a thi\u1ebft b\u1ecb n\u00e0y cho ph\u00e9p c\u00e1c ph\u00f2ng th\u00ed nghi\u1ec7m kh\u00f4ng ch\u1ec9 th\u1ef1c hi\u1ec7n c\u00e1c quy tr\u00ecnh th\u1eed nghi\u1ec7m \u0111\u1ed9 b\u1ec1n k\u00e9o tr\u00ean d\u1ea3i th\u1eed m\u00e0 c\u00f2n <strong>c\u00e1c th\u1eed nghi\u1ec7m \u0111\u1ed9 gi\u00e3n d\u00e0i, b\u00f3c t\u00e1ch v\u00e0 x\u00e9 r\u00e1ch<\/strong>, t\u1eeb \u0111\u00f3 n\u00e2ng cao hi\u1ec7u qu\u1ea3 ki\u1ec3m th\u1eed t\u1ed5ng th\u1ec3.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">T\u1ea1i sao th\u1eed nghi\u1ec7m \u0111\u1ed9 b\u1ec1n k\u00e9o d\u1ea3i l\u1ea1i quan tr\u1ecdng trong ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Th\u1eed nghi\u1ec7m k\u00e9o d\u1ea3i cung c\u1ea5p d\u1eef li\u1ec7u c\u00f3 gi\u00e1 tr\u1ecb th\u1ef1c ti\u1ec5n cho:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>L\u1ef1a ch\u1ecdn v\u00e0 x\u00e1c nh\u1eadn v\u1eadt li\u1ec7u<\/strong><\/li>\n\n\n\n<li><strong>Gi\u00e1m s\u00e1t t\u00ednh nh\u1ea5t qu\u00e1n trong s\u1ea3n xu\u1ea5t<\/strong><\/li>\n\n\n\n<li><strong>Ph\u00e2n t\u00edch nguy\u00ean nh\u00e2n h\u1ecfng h\u00f3c v\u00e0 t\u1ed1i \u01b0u h\u00f3a nghi\u00ean c\u1ee9u v\u00e0 ph\u00e1t tri\u1ec3n<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi c\u00e1c lo\u1ea1i m\u00e0ng \u0111\u1ecba k\u1ef9 thu\u1eadt gia c\u1ed1 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c h\u1ec7 th\u1ed1ng ch\u1ee9a, c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng v\u00e0 b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng, vi\u1ec7c th\u1eed nghi\u1ec7m \u0111\u1ed9 b\u1ec1n k\u00e9o ch\u00ednh x\u00e1c \u0111\u1ea3m b\u1ea3o <strong>\u0111\u1ed9 tin c\u1eady v\u00e0 an to\u00e0n l\u00e2u d\u00e0i<\/strong>.<\/p>","protected":false},"excerpt":{"rendered":"<p>Th\u1eed nghi\u1ec7m k\u00e9o d\u1ea3i nh\u1eb1m \u0111\u00e1nh gi\u00e1 \u0111\u1ed9 b\u1ec1n k\u00e9o v\u00e0 \u0111\u1ed9 gi\u00e3n d\u00e0i c\u1ee7a m\u00e0ng \u0111\u1ecba k\u1ef9 thu\u1eadt c\u00f3 c\u1ed1t b\u1eb1ng c\u00e1ch t\u00e1c d\u1ee5ng l\u1ef1c k\u00e9o \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t l\u00ean c\u00e1c m\u1eabu th\u1eed c\u00f3 chi\u1ec1u r\u1ed9ng h\u1eb9p. Theo ti\u00eau chu\u1ea9n ASTM D7003, ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111o t\u1ea3i tr\u1ecdng c\u1ef1c \u0111\u1ea1i, \u0111\u1ed9 gi\u00e3n d\u00e0i v\u00e0 c\u00e1c \u0111\u1eb7c t\u00ednh h\u01b0 h\u1ecfng d\u1ecdc theo c\u00e1c h\u01b0\u1edbng c\u1ee7a c\u1ed1t.<\/p>","protected":false},"featured_media":0,"parent":0,"template":"","meta":{"_acf_changed":true},"method-category":[],"class_list":["post-1074","method","type-method","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.geo-tester.com\/vi\/wp-json\/wp\/v2\/method\/1074","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.geo-tester.com\/vi\/wp-json\/wp\/v2\/method"}],"about":[{"href":"https:\/\/www.geo-tester.com\/vi\/wp-json\/wp\/v2\/types\/method"}],"wp:attachment":[{"href":"https:\/\/www.geo-tester.com\/vi\/wp-json\/wp\/v2\/media?parent=1074"}],"wp:term":[{"taxonomy":"method-category","embeddable":true,"href":"https:\/\/www.geo-tester.com\/vi\/wp-json\/wp\/v2\/method-category?post=1074"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}