Influence of Rheological Active Additives on the Properties of Self-compacting Concrete

作     者：Abbas Guvalov Saida Abbasova Abbas Guvalov;Saida Abbasova

作者机构：Azerbaijan University of Architecture and ConstructionAzerbaijan 

出 版 物：《Journal of Wuhan University of Technology(Materials Science)》 (武汉理工大学学报（材料科学英文版）)

年 卷 期：2021年第36卷第3期

页      面：381-386页

核心收录：

学科分类：08[工学] 081304[工学-建筑技术科学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0813[工学-建筑学] 0702[理学-物理学] 

主　　题：polyfunctional cement stone powder hyperplasticisers rheology matrix dispersion aggregate 

摘      要：The effect of rheological-active additives on the properties of cement suspensions and self-compacting concrete mixtures have been *** order to increase the rheological matrix and provide high fluidity,stone powders were used during the crushing of local mountain rocks in self-compacting *** into account the high dispersion of rheological-active additives,highly effective plasticizers were used to regulate the reotechnological properties of cement-based *** effect of sulfonaphthalen-formaldehyde oligomer and polycarboxylate-based hyperplasticizer on rheological properties of cement systems as plasticized additive on methodology proposed by V Kalashnikov was *** flow rate of cement suspension is determined by means of mini-viscosimeter,spreading of cement-sand mortar by means of Hegermann cone,and the slump of concrete mixture by means of Abraham’s *** the basis of obtained results,it was determined that limestone powder was more efficient than other stone ***,when adding 40%limestone powder to the mixture,the compressive strength of the samples taken from self-compacting concrete mixture increases by 15%-30%compared to the control *** optimal quantities of rheological-active additives and plasticizers have been identified and the possibility of obtaining high-strength self-compacting concrete based on them has been confirmed.