Effects of pre-soaked super absorbent polymers on fresh and hardened properties of self-consolidating lightweight concrete

被引：50

作者：

AzariJafari, Hessam ^{[1
]}

Kazemian, Ali ^{[2
]}

Rahimi, Motahareh ^{[1
]}

Yahia, Ammar ^{[1
]}

机构：

[1] Univ Sherbrooke, Dept Civil Engn, 2500 Blvd Univ, Sherbrooke, PQ J1K 2R1, Canada

[2] Univ So Calif, Sonny Astani Dept Civil & Environm Engn, Los Angeles, CA USA

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2016年 / 113卷

关键词：

Lightweight concrete; Self-consolidating concrete; Super absorbent polymer; Electrical resistivity; Passing ability; Static stability; Shrinkage; SUPERABSORBENT POLYMERS; AUTOGENOUS SHRINKAGE; PERFORMANCE; RESISTIVITY; AGGREGATE; STRENGTH; MORTARS;

D O I：

10.1016/j.conbuildmat.2016.03.010

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In this research, the influence of pre-soaked super absorbent polymers (SAPs) on the properties of Self-Consolidating Lightweight Concrete (SCLWC) was evaluated. SAP with two different fineness of 1-4 mm and 0.3-1 mm was incorporated in SCLWC mixtures at a constant percentage of 1.5%, by mass of binder. SCLWC mixtures were evaluated in terms of slump flow, T50, V-funnel, J-ring, compressive strength, water absorption, electrical resistivity, and total shrinkage. The test results indicated that SAP improve passing ability and decreases the static stability of fresh SCLWC mixtures. Furthermore, the use of SAP reduced the compressive strength of SCLWC mixtures at 7 and 28 days ages and induced a negative effect on the electrical resistivity and water absorption of SCLWC. However, the use of SAP resulted in up to 50% reduction in total shrinkage of SCLWC, compared to the reference mixture made without SAP. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：215 / 220

页数：6

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