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CONCRETE MIXTURE FOR MAKING HIGH-STRENGTH CONCRETE OF DIFFERENT DENSITY, METHOD OF ITS PRODUCING, CONCRETE AND METHOD OF ITS PRODUCING

机译:用于制造高密度混凝土的混凝土混合物,其制造方法,混凝土及其制造方法

摘要

FIELD: building industry and materials. SUBSTANCE: invention relates to an aqueous concrete mixture having volume of air pores from 10 to 85%, preferably from 20 to 85% and to concrete having homogeneous density and high strength. Method of making involves addition of an aqueous anionic surface-active compound to concrete mixture. This compound has two groups of sulfonic acid of the general formula (R)m-R1-(SO3M)2 where R means aliphatic group containing 4-20 carbon atoms; m is the whole number 1 or 2 and total amount of carbon atoms or in groups R is 6-30; R1 is an aromatic group containing at least 2 aromatic cycles and 10-20 carbon atoms; M means monovalent cation or hydrogen atom preferably. Anionic compound shows air-absorbing effect and improves homogeneity of concrete mixture. EFFECT: homogeneous density and high strength of concrete. 14 cl, 5 tbl, 3 ex
机译:领域:建筑业和材料。发明领域本发明涉及一种具有10-85%,优选20-85%的气孔体积的含水混凝土混合物,并且涉及具有均一密度和高强度的混凝土。制备方法包括将水性阴离子表面活性化合物添加到混凝土混合物中。该化合物具有两组通式为(R) m -R 1 -(SO 3 M) 2的磺酸其中R表示含有4-20个碳原子的脂族基团; m是整数1或2,并且碳原子总数或R基团的总数为6-30; R 1 是具有至少2个芳香族环和10-20个碳原子的芳香族基团; M优选是指一价阳离子或氢原子。阴离子化合物具有吸气作用,可改善混凝土混合物的均质性。效果:混凝土密度均匀,强度高。 14 cl,5 tbl,3前

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