Influences of design parameters on the properties of self-compacting concrete produced with structurally different polycarboxylates

被引：11

作者：

Erzengin, Siddika G. ^{[1
]}

Ocal, Cenk ^{[2
]}

机构：

[1] Suleyman Demirel Univ, Dept Chem Engn, West Campus, TR-32260 Isparta, Turkey

[2] Isparta Univ Appl Sci, Dept Civil Engn, Isparta, Turkey

来源：

STRUCTURAL CONCRETE | 2019年 / 20卷 / 05期

关键词：

compressive strength; cross-link; polycarboxylate; self-compacting concrete; superplasticizer; workability; MECHANICAL-PROPERTIES; THERMAL-DEGRADATION; CHEMICAL-STRUCTURE; SUPERPLASTICIZERS; CEMENT; PERFORMANCE; STRENGTH; BEHAVIOR; POWDER; PASTE;

D O I：

10.1002/suco.201900094

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

New mixes were prepared according to the EFNARC self-compacting concrete criteria with synthesized polycarboxylate-type superplasticizers. For this purpose, superplasticizers possessing different side-chain lengths and cross-linkages were produced to overcome the workability and workability-retention problems in self-compacting concrete (SCC) by time. Not only the fresh properties but also hardened properties of SCCs were improved. With this study it was determined that, cross-linked polycarboxylate-type superplasticizer shows better performance in SCC compared to its counterparts and commercial polycarboxylate. It provides better self-compaction by discharging its bubbles during molding. Besides, the effects of water-powder ratio and superplasticizer dosage were also examined and discussed in this study.

引用

页码：1710 / 1721

页数：12

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