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首页> 外国专利> CEMENT RAW MEAL, METHOD OF MANUFACTURING PORTLAND CEMENT WITH LOWERED SHRINKAGE FROM PORTLAND CEMENT CLINKER OBTAINED BY FIRE CAKING OF INDICATED RAW MEAL AND A METHOD FOR MANUFACTURING CEMENTING MATERIAL SUITABLE TO REPAIR CONCRETE AND TO STRENGTHEN GROUNDS BEING FINE FRACTION OF INDICATED PORTLAND CEMENT

CEMENT RAW MEAL, METHOD OF MANUFACTURING PORTLAND CEMENT WITH LOWERED SHRINKAGE FROM PORTLAND CEMENT CLINKER OBTAINED BY FIRE CAKING OF INDICATED RAW MEAL AND A METHOD FOR MANUFACTURING CEMENTING MATERIAL SUITABLE TO REPAIR CONCRETE AND TO STRENGTHEN GROUNDS BEING FINE FRACTION OF INDICATED PORTLAND CEMENT

机译：水泥生粉，通过指示生粉的煅烧获得的从波特兰水泥熟料中粉状收缩的波特兰水泥的制造方法以及制造水泥材料的方法，该方法可修复并加固水泥地面上的细粉

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FIELD: manufacture of building materials. SUBSTANCE: invention can be applied in cement production, building industry, geotechnical and hydroengineering construction, and in restoration operations. Cement raw meal, containing lime, silicate, and ferrous ingredients as well as 0.03 to 0.5% of strontium compounds (calculated as oxide), alkali metal oxides, and sulfur trioxide, contains its strontium compounds within lime ingredient in the form of calcite-strontianite (strontianite, celestine) and with silica modulus of mixture 0.5-1.25 and weight ratio of alkali metal oxides (calculated as sodium oxide) to sulfur trioxide equal to 0.7-1.5. Raw meal further contains 0.15 to 0.5% barium compounds (silfide, whitherite, barite calculated as barium oxide). Lime saturation ratio of clinker is 0.9-1.15. This raw meal is caked by firing in oxidative atmosphere until contents of 0.05-0.8% free calcium oxide and 0.01-0.3% iron monoxide are obtained. Resulting clinker is jointly ground with gypsum component at weight ratio 100: (0.3-6), respectively, to achieve specific surface 250-700 sq.m/kg (taking into consideration criterion of minimum shrinkage of samples made from cement paste in wet air medium). Gypsum component is calcium sulfate in the form of naturally-occurring gypsum stone including 0.01 to 1.5% clayey admixtures. When grinding, 0.5 to 40% active mineral agent with 6-12% moisture and moisture-reducing component are added, weight ratio of clinker to this component being 100:90.3- 2.5). Moisture-reducing component is selected from following group: salt of product prepared by condensation of naphthalenesulfonic acid with formaldehyde or melamine-containing resins with formaldehyde; industrial- grade lignosulfonate optionally modified by phenol-formaldehyde resin; complex salts of alkali-earth metals and acid (sulfuric, formic, acetic acid) with low-molecular (C3- C5) monosaccharides; and paired mixtures of indicated materials. Grinding is carried out in vented disintegrator at aspiration degree controlled by absence of dusting at inlet mouth and in presence of expansion agent added at weight ratio of clinker to that agent 100:(0.5-4). Expansion agent is preliminarily prepared mixture of sulfoaluminate clinker or aluminum sulfate, film-former, and etching agent, said film-former being waterproofing agent selected from higher fatty acids, drying oil, wax, vegetable oils, and solutions of any of indicated materials in mineral oil, and said etching agent being selected from puruvic acid, levulinic acid, mesoxalyc acid, aldonic acids, aromatic acids, their acid derivatives, unsaturated carboxylic acids, hydroxyacids, carbocyclic compounds, dicarboxylic compounds, anhydrides of indicated acids, resin acids in double mixtures with above-indicated substances, alcohols, aldehydes, double and triple mixtures of indicated substances (secondary products and wastes containing thereof), the three agent components being taken at weight ratio 100:(2.5-30):(2-20), respectively. Cementing material for repairing concrete and strengthening grounds is obtained as aspirated and then precipitated material when performing grinding in vented disintegrator, its specific surface being 400-2500 sq.m/kg. Composition of this fraction is controlled by varying ratio of components in Portland cement and mechanical conditions of disintegrator operation until content of strontium and barium compounds achieves 0.2- 0.6%. EFFECT: reduced shrinkage of Portland cement in absence or at reduced content of expansion agent and increased strength of cementing material. 18 cl, 2 tbl, 3 ex
机译：领域：建筑材料的制造。物质：本发明可应用于水泥生产，建筑业，岩土和水力工程建设以及修复作业。水泥生料中含有石灰，硅酸盐和铁成分，以及0.03％至0.5％的锶化合物（以氧化物计算），碱金属氧化物和三氧化硫，其锶化合物以方解石-锶锶矿的形式包含在石灰成分中（锶长石，天青石）和二氧化硅的混合物的模量为0.5-1.25，碱金属氧化物（以氧化钠计算）与三氧化硫的重量比等于0.7-1.5。生料还包含0.15至0.5％的钡化合物（硅化物，硅藻土，重晶石，以氧化钡计）。熟料的石灰饱和比为0.9-1.15。通过在氧化气氛中焙烧将该生料结块，直至获得0.05-0.8％的游离氧化钙和0.01-0.3％的一氧化铁的含量。将生成的熟料与石膏组分分别以100：（0.3-6）的重量比共同研磨，以达到250-700 sq.m / kg的比表面积（考虑到水泥浆在湿空气中的最小收缩标准）中）。石膏组分是天然存在的石膏石形式的硫酸钙，其包含0.01至1.5％的粘土混合物。当研磨时，添加0.5至40％的具有6-12％的水分和减少水分的活性矿物剂，熟料与该组分的重量比为100：90.3-2.5。减湿组分选自：萘磺酸与甲醛缩合而制得的产物盐，或含三聚氰胺的树脂与甲醛缩合而得的产物的盐。工业级木质素磺酸盐，可选用酚醛树脂改性;碱土金属和酸（硫酸，甲酸，乙酸）与低分子（C3-C5）单糖的复合盐;以及指定材料的配对混合物。研磨是在排气式破碎机中进行的，其抽吸度受入口口无粉尘的影响，并且存在以熟料与助燃剂的重量比为100：（0.5-4）添加的膨胀剂。膨胀剂是硫铝酸盐熟料或硫酸铝，成膜剂和蚀刻剂的预先制备的混合物，所述成膜剂是选自高级脂肪酸，干燥油，蜡，植物油以及任何指定材料的溶液中的防水剂。矿物油，并且所述蚀刻剂选自丙酮酸，乙酰丙酸，中氧乙酸，醛糖酸，芳族酸，它们的酸衍生物，不饱和羧酸，羟基酸，碳环化合物，二羧酸化合物，所示酸的酸酐，双树脂酸与上述物质，醇，醛的混合物，所示物质的二元和三元混合物（二级产品及其所含废物），三种试剂成分的重量比为100：（2.5-30）:( 2-20），分别。在排气式粉碎机中进行研磨时，可将水泥材料修补成水泥并加固地面，然后将其吸出，然后沉淀出来，其比表面积为400-2500平方米/公斤。通过改变硅酸盐水泥中组分的比例和崩解剂操作的机械条件来控制该馏分的组成，直到锶和钡化合物的含量达到0.2-0.6％为止。效果：在不存在膨胀剂或减少膨胀剂含量的情况下，波特兰水泥的收缩率降低，并且胶结材料的强度提高。 18 cl，2 tbl，3前

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