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Барилгын материал, тухайлбал, цементийн стандартын үзүүлэлтүүд тодорхой хязгаарт хэлбэлздэг. Стройлабораторид материалд туршилт хийснээр энэ хязгаарыг аль түвшинд байгааг тодорхойлж зохицуулах ёстой. Стандартчилаагүй боловч хэрэглээнд онцгой чухал үзүүлэлт бас байдаг. Барилгачид бетоныг цутгаснаас хойш хурдан бэхжин хатууруулах …
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Нүүрсний гол үзүүлэлтүүдэд чийг, дэгдэмхий, үнслэг, ичлэг багтдаг. - Цементийн үйлдвэрлэлд хэрэглэгдэг нүүрсний илчлэг 5000-6000 ккал/кг, үнслэг 12-15%, дэгдэмхий 18-22%, байгалийн чийг 12%-иас илүүгүй байхыг тохиромжтойд тооцдог. Нүүрсний шатамхай хэсэг болон нүүрстөрөгч, азот, хүхэр, устөрөгч хүчилтөрөгчтэй …
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