{"id":41721,"date":"2025-10-22T07:37:10","date_gmt":"2025-10-22T00:37:10","guid":{"rendered":"https:\/\/catlong.vn\/?p=41721"},"modified":"2025-10-22T11:02:53","modified_gmt":"2025-10-22T04:02:53","slug":"ung-dung-thach-cao-trong-san-xuat-gach-khong-nung","status":"publish","type":"post","link":"https:\/\/catlong.vn\/?p=41721","title":{"rendered":"\u1ee8NG D\u1ee4NG TH\u1ea0CH CAO TRONG S\u1ea2N XU\u1ea4T G\u1ea0CH KH\u00d4NG NUNG"},"content":{"rendered":"\n<h4 class=\"wp-block-heading\"><strong>1. T\u1ed5ng quan v\u1ec1 g\u1ea1ch kh\u00f4ng nung<\/strong><\/h4>\n\n\n\n<p>G\u1ea1ch kh\u00f4ng nung l\u00e0 lo\u1ea1i v\u1eadt li\u1ec7u x\u00e2y d\u1ef1ng \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t kh\u00f4ng qua qu\u00e1 tr\u00ecnh nung \u1edf nhi\u1ec7t \u0111\u1ed9 cao nh\u01b0 g\u1ea1ch \u0111\u1ea5t s\u00e9t truy\u1ec1n th\u1ed1ng. Thay v\u00e0o \u0111\u00f3, g\u1ea1ch \u0111\u01b0\u1ee3c t\u1ea1o h\u00ecnh t\u1eeb h\u1ed7n h\u1ee3p nguy\u00ean li\u1ec7u nh\u01b0 xi m\u0103ng, c\u00e1t, tro bay, x\u1ec9 than, th\u1ea1ch cao v\u00e0 m\u1ed9t s\u1ed1 ph\u1ee5 gia kh\u00e1c, sau \u0111\u00f3 \u0111\u1ec3 t\u1ef1 \u0111\u00f3ng r\u1eafn ho\u1eb7c \u00e9p d\u01b0\u1edbi \u00e1p l\u1ef1c r\u1ed3i d\u01b0\u1ee1ng h\u1ed9 trong m\u00f4i tr\u01b0\u1eddng \u1ea9m.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"565\" height=\"193\" src=\"https:\/\/catlong.vn\/wp-content\/uploads\/2025\/10\/image-9.png\" alt=\"\" class=\"wp-image-41722\" style=\"width:790px;height:auto\" srcset=\"https:\/\/catlong.vn\/wp-content\/uploads\/2025\/10\/image-9.png 565w, https:\/\/catlong.vn\/wp-content\/uploads\/2025\/10\/image-9-300x102.png 300w\" sizes=\"auto, (max-width: 565px) 100vw, 565px\" \/><\/figure>\n\n\n\n<p>G\u1ea1ch kh\u00f4ng nung mang l\u1ea1i nhi\u1ec1u l\u1ee3i \u00edch v\u01b0\u1ee3t tr\u1ed9i so v\u1edbi g\u1ea1ch \u0111\u1ea5t nung: <strong>gi\u1ea3m ti\u00eau th\u1ee5 \u0111\u1ea5t s\u00e9t, kh\u00f4ng c\u1ea7n \u0111\u1ed1t nhi\u00ean li\u1ec7u (than, c\u1ee7i), gi\u1ea3m ph\u00e1t th\u1ea3i CO<\/strong><strong>\u2082<\/strong><strong>,<\/strong> b\u1ea3o v\u1ec7 t\u00e0i nguy\u00ean thi\u00ean nhi\u00ean v\u00e0 ph\u00f9 h\u1ee3p v\u1edbi xu h\u01b0\u1edbng ph\u00e1t tri\u1ec3n v\u1eadt li\u1ec7u x\u00e2y d\u1ef1ng xanh, b\u1ec1n v\u1eefng.<\/p>\n\n\n\n<p>Trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t g\u1ea1ch kh\u00f4ng nung, <strong>th\u1ea1ch cao<\/strong> l\u00e0 m\u1ed9t trong nh\u1eefng th\u00e0nh ph\u1ea7n quan tr\u1ecdng gi\u00fap <strong>t\u0103ng c\u01b0\u1eddng ch\u1ea5t l\u01b0\u1ee3ng g\u1ea1ch<\/strong><strong>,<\/strong> \u0111\u1ed3ng th\u1eddi t\u1eadn d\u1ee5ng ngu\u1ed3n th\u1ea1ch cao nh\u00e2n t\u1ea1o, g\u00f3p ph\u1ea7n x\u1eed l\u00fd ch\u1ea5t th\u1ea3i c\u00f4ng nghi\u1ec7p v\u00e0 b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>2. T\u1ed5ng quan v\u1ec1 th\u1ea1ch cao v\u00e0 c\u00e1c lo\u1ea1i th\u1ea1ch cao s\u1eed d\u1ee5ng trong g\u1ea1ch kh\u00f4ng nung<\/strong><\/h4>\n\n\n\n<p>Th\u1ea1ch cao (CaSO\u2084\u00b72H\u2082O) l\u00e0 kho\u00e1ng v\u1eadt c\u00f3 ngu\u1ed3n g\u1ed1c t\u1ef1 nhi\u00ean ho\u1eb7c t\u1ed5ng h\u1ee3p t\u1eeb qu\u00e1 tr\u00ecnh x\u1eed l\u00fd ch\u1ea5t th\u1ea3i c\u00f4ng nghi\u1ec7p nh\u01b0 <strong>phosphogypsum<\/strong> (t\u1eeb s\u1ea3n xu\u1ea5t ph\u00e2n b\u00f3n DAP), <strong>FGD gypsum<\/strong> (t\u1eeb h\u1ec7 th\u1ed1ng kh\u1eed l\u01b0u hu\u1ef3nh kh\u00ed th\u1ea3i), ho\u1eb7c th\u1ea1ch cao t\u00e1i ch\u1ebf t\u1eeb ng\u00e0nh x\u00e2y d\u1ef1ng.<\/p>\n\n\n\n<p>C\u00e1c lo\u1ea1i th\u1ea1ch cao d\u00f9ng trong s\u1ea3n xu\u1ea5t g\u1ea1ch kh\u00f4ng nung bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Th\u1ea1ch cao t\u1ef1 nhi\u00ean<\/strong>: Khai th\u00e1c t\u1eeb m\u1ecf, c\u00f3 \u0111\u1ed9 tinh khi\u1ebft cao.<\/li>\n\n\n\n<li><strong>Th\u1ea1ch cao nh\u00e2n t\u1ea1o<\/strong>: \u0110\u01b0\u1ee3c s\u1ea3n xu\u1ea5t t\u1eeb b\u00e3 th\u1ea3i c\u00f4ng nghi\u1ec7p, sau x\u1eed l\u00fd \u0111\u1ea1t ch\u1ea5t l\u01b0\u1ee3ng t\u01b0\u01a1ng \u0111\u01b0\u01a1ng th\u1ea1ch cao t\u1ef1 nhi\u00ean.<\/li>\n\n\n\n<li><strong>Th\u1ea1ch cao nung<\/strong>: \u0110\u01b0\u1ee3c nung t\u1eeb th\u1ea1ch cao t\u1ef1 nhi\u00ean\/nh\u00e2n t\u1ea1o \u1edf nhi\u1ec7t \u0111\u1ed9 kho\u1ea3ng 150\u2013180\u00b0C \u0111\u1ec3 m\u1ea5t n\u01b0\u1edbc m\u1ed9t ph\u1ea7n, t\u1ea1o th\u00e0nh <strong>CaSO<\/strong><strong>\u2084\u00b70.5H<\/strong><strong>\u2082O<\/strong> (hemihydrate), gi\u00fap r\u00fat ng\u1eafn th\u1eddi gian \u0111\u00f4ng k\u1ebft c\u1ee7a g\u1ea1ch.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"524\" height=\"164\" src=\"https:\/\/catlong.vn\/wp-content\/uploads\/2025\/10\/image-10.png\" alt=\"\" class=\"wp-image-41723\" style=\"width:817px;height:auto\" srcset=\"https:\/\/catlong.vn\/wp-content\/uploads\/2025\/10\/image-10.png 524w, https:\/\/catlong.vn\/wp-content\/uploads\/2025\/10\/image-10-300x94.png 300w\" sizes=\"auto, (max-width: 524px) 100vw, 524px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>3. \u01afu \u0111i\u1ec3m c\u1ee7a vi\u1ec7c s\u1eed d\u1ee5ng th\u1ea1ch cao nh\u00e2n t\u1ea1o trong g\u1ea1ch kh\u00f4ng nung<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>T\u0103ng ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m<\/strong>: G\u1ea1ch c\u00f3 b\u1ec1 m\u1eb7t nh\u1eb5n, \u00edt r\u1ed7, \u0111\u1ed9 ch\u00ednh x\u00e1c k\u00edch th\u01b0\u1edbc cao, gi\u1ea3m t\u1ef7 l\u1ec7 g\u1ea1ch l\u1ed7i.<\/li>\n\n\n\n<li><strong>Gi\u1ea3m chi ph\u00ed s\u1ea3n xu\u1ea5t<\/strong>: Th\u1ea1ch cao gi\u00e1 r\u1ebb h\u01a1n xi m\u0103ng, \u0111\u1eb7c bi\u1ec7t khi d\u00f9ng th\u1ea1ch cao nh\u00e2n t\u1ea1o t\u1eeb ch\u1ea5t th\u1ea3i c\u00f4ng nghi\u1ec7p.<\/li>\n\n\n\n<li><strong>T\u0103ng kh\u1ea3 n\u0103ng s\u1ea3n xu\u1ea5t xanh<\/strong>: Gi\u1ea3m ti\u00eau hao nguy\u00ean li\u1ec7u ch\u00ednh (xi m\u0103ng), \u0111\u1ed3ng th\u1eddi t\u1eadn d\u1ee5ng ch\u1ea5t th\u1ea3i c\u00f4ng nghi\u1ec7p, gi\u1ea3m ph\u00e1t th\u1ea3i CO\u2082.<\/li>\n\n\n\n<li><strong>T\u0103ng t\u00ednh linh ho\u1ea1t c\u00f4ng th\u1ee9c ph\u1ed1i li\u1ec7u<\/strong>: Th\u1ea1ch cao k\u1ebft h\u1ee3p t\u1ed1t v\u1edbi nhi\u1ec1u lo\u1ea1i ph\u1ee5 gia nh\u01b0 tro bay, x\u1ec9 l\u00f2 cao, gi\u00fap \u0111a d\u1ea1ng h\u00f3a s\u1ea3n ph\u1ea9m g\u1ea1ch (g\u1ea1ch block, g\u1ea1ch r\u1ed7ng, g\u1ea1ch l\u00e1t\u2026).<\/li>\n\n\n\n<li><strong>Th\u00e2n thi\u1ec7n m\u00f4i tr\u01b0\u1eddng<\/strong>: Th\u1ea1ch cao kh\u00f4ng \u0111\u1ed9c h\u1ea1i, d\u1ec5 x\u1eed l\u00fd, g\u00f3p ph\u1ea7n v\u00e0o ph\u00e1t tri\u1ec3n v\u1eadt li\u1ec7u x\u00e2y d\u1ef1ng kh\u00f4ng nung \u2013 xu h\u01b0\u1edbng t\u1ea5t y\u1ebfu c\u1ee7a ng\u00e0nh x\u00e2y d\u1ef1ng b\u1ec1n v\u1eefng.<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>4. M\u1ed9t s\u1ed1 l\u01b0u \u00fd v\u00e0 h\u1ea1n ch\u1ebf<\/strong><\/h4>\n\n\n\n<p>M\u1eb7c d\u00f9 c\u00f3 nhi\u1ec1u \u01b0u \u0111i\u1ec3m, vi\u1ec7c s\u1eed d\u1ee5ng th\u1ea1ch cao trong s\u1ea3n xu\u1ea5t g\u1ea1ch kh\u00f4ng nung c\u0169ng c\u1ea7n l\u01b0u \u00fd:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Ch\u1ea5t l\u01b0\u1ee3ng th\u1ea1ch cao \u0111\u1ea7u v\u00e0o<\/strong>: N\u1ebfu s\u1eed d\u1ee5ng th\u1ea1ch cao nh\u00e2n t\u1ea1o, c\u1ea7n \u0111\u1ea3m b\u1ea3o \u0111\u00e3 x\u1eed l\u00fd s\u1ea1ch t\u1ea1p ch\u1ea5t (fluor, kim lo\u1ea1i n\u1eb7ng, ph\u00f3ng x\u1ea1).<\/li>\n\n\n\n<li><strong>Li\u1ec1u l\u01b0\u1ee3ng s\u1eed d\u1ee5ng h\u1ee3p l\u00fd<\/strong>: D\u00f9ng qu\u00e1 nhi\u1ec1u th\u1ea1ch cao c\u00f3 th\u1ec3 g\u00e2y hi\u1ec7n t\u01b0\u1ee3ng tr\u01b0\u01a1ng n\u1edf, n\u1ee9t g\u1ea1ch sau khi \u0111\u00f3ng r\u1eafn.<\/li>\n\n\n\n<li><strong>Ki\u1ec3m so\u00e1t \u0111\u1ed9 \u1ea9m<\/strong>: V\u00ec th\u1ea1ch cao h\u00fat \u1ea9m, c\u1ea7n \u0111\u1ea3m b\u1ea3o g\u1ea1ch \u0111\u01b0\u1ee3c d\u01b0\u1ee1ng h\u1ed9 \u0111\u00fang quy tr\u00ecnh \u0111\u1ec3 \u0111\u1ea1t ch\u1ea5t l\u01b0\u1ee3ng t\u1ed1i \u01b0u.<\/li>\n\n\n\n<li><strong>Ph\u1ed1i h\u1ee3p v\u1edbi c\u00e1c ph\u1ee5 gia kh\u00e1c<\/strong>: T\u00f9y thu\u1ed9c v\u00e0o ngu\u1ed3n nguy\u00ean li\u1ec7u \u0111\u1ecba ph\u01b0\u01a1ng, n\u00ean th\u1eed nghi\u1ec7m nhi\u1ec1u c\u00f4ng th\u1ee9c ph\u1ed1i tr\u1ed9n \u0111\u1ec3 \u0111\u1ea1t hi\u1ec7u qu\u1ea3 cao nh\u1ea5t.<\/li>\n<\/ul>\n\n\n\n<p>Th\u1ea1ch cao, \u0111\u1eb7c bi\u1ec7t l\u00e0 th\u1ea1ch cao nh\u00e2n t\u1ea1o, l\u00e0 m\u1ed9t <strong>ph\u1ee5 gia kho\u00e1ng ti\u1ec1m n\u0103ng<\/strong> trong s\u1ea3n xu\u1ea5t g\u1ea1ch kh\u00f4ng nung. Kh\u00f4ng ch\u1ec9 gi\u00fap c\u1ea3i thi\u1ec7n \u0111\u1eb7c t\u00ednh k\u1ef9 thu\u1eadt c\u1ee7a g\u1ea1ch, th\u1ea1ch cao c\u00f2n mang l\u1ea1i hi\u1ec7u qu\u1ea3 kinh t\u1ebf \u2013 m\u00f4i tr\u01b0\u1eddng v\u01b0\u1ee3t tr\u1ed9i, g\u00f3p ph\u1ea7n v\u00e0o m\u1ee5c ti\u00eau ph\u00e1t tri\u1ec3n b\u1ec1n v\u1eefng ng\u00e0nh x\u00e2y d\u1ef1ng. Vi\u1ec7c \u0111\u1ea9y m\u1ea1nh nghi\u00ean c\u1ee9u v\u00e0 \u1ee9ng d\u1ee5ng th\u1ea1ch cao trong s\u1ea3n xu\u1ea5t g\u1ea1ch kh\u00f4ng nung ch\u00ednh l\u00e0 b\u01b0\u1edbc \u0111i quan tr\u1ecdng \u0111\u1ec3 x\u00e2y d\u1ef1ng m\u1ed9t ng\u00e0nh c\u00f4ng nghi\u1ec7p v\u1eadt li\u1ec7u x\u00e2y d\u1ef1ng hi\u1ec7n \u0111\u1ea1i, xanh v\u00e0 th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng.<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>1. T\u1ed5ng quan v\u1ec1 g\u1ea1ch kh\u00f4ng nung G\u1ea1ch kh\u00f4ng nung l\u00e0 lo\u1ea1i v\u1eadt li\u1ec7u x\u00e2y d\u1ef1ng \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t kh\u00f4ng qua qu\u00e1 tr\u00ecnh nung \u1edf nhi\u1ec7t \u0111\u1ed9 cao nh\u01b0 g\u1ea1ch \u0111\u1ea5t s\u00e9t truy\u1ec1n th\u1ed1ng. Thay v\u00e0o \u0111\u00f3, g\u1ea1ch \u0111\u01b0\u1ee3c t\u1ea1o h\u00ecnh t\u1eeb h\u1ed7n h\u1ee3p nguy\u00ean li\u1ec7u nh\u01b0 xi m\u0103ng, c\u00e1t, tro bay, x\u1ec9 than, th\u1ea1ch &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/catlong.vn\/?p=41721\"> <span class=\"screen-reader-text\">\u1ee8NG D\u1ee4NG TH\u1ea0CH CAO TRONG S\u1ea2N XU\u1ea4T G\u1ea0CH KH\u00d4NG NUNG<\/span> Read More &raquo;<\/a><\/p>\n","protected":false},"author":7,"featured_media":41725,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-global-header-display":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","footnotes":""},"categories":[172],"tags":[],"class_list":["post-41721","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tcnt"],"_links":{"self":[{"href":"https:\/\/catlong.vn\/index.php?rest_route=\/wp\/v2\/posts\/41721","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/catlong.vn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/catlong.vn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/catlong.vn\/index.php?rest_route=\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/catlong.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=41721"}],"version-history":[{"count":4,"href":"https:\/\/catlong.vn\/index.php?rest_route=\/wp\/v2\/posts\/41721\/revisions"}],"predecessor-version":[{"id":41729,"href":"https:\/\/catlong.vn\/index.php?rest_route=\/wp\/v2\/posts\/41721\/revisions\/41729"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/catlong.vn\/index.php?rest_route=\/wp\/v2\/media\/41725"}],"wp:attachment":[{"href":"https:\/\/catlong.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=41721"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/catlong.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=41721"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/catlong.vn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=41721"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}