Early age tensile creep of high performance concrete containing mineral admixtures: Experiments and modeling

被引：35

作者：

Gu Chunping ^{[1
,2
]}

Wang Yicong ^{[1
]}

Gao Fan ^{[1
]}

Yang Yang ^{[1
,2
]}

Ni Tongyuan ^{[1
,2
]}

Liu Jintao ^{[1
,2
]}

Lou Xiaotian ^{[1
]}

Chen Jin ^{[1
]}

机构：

[1] Zhejiang Univ Technol, Coll Civil Engn & Architecture, Hangzhou 310023, Zhejiang, Peoples R China

[2] Zhejiang Univ Technol, Key Lab Civil Engn Struct & Disaster Prevent & Mi, Hangzhou 310023, Zhejiang, Peoples R China

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2019年 / 197卷

基金：

中国国家自然科学基金;

关键词：

High performance concrete (HPC); Mineral admixtures; Tensile creep; Early age; BASIC CREEP; FLY-ASH; COMPRESSIVE CREEP; STRENGTH CONCRETE; DRYING SHRINKAGE; PREDICTION; TEMPERATURE;

D O I：

10.1016/j.conbuildmat.2018.11.218

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In the paper, the early age tensile creep behavior of high performance concrete (HPC) containing mineral admixtures was experimentally investigated. The results showed that, when the loading age was at 1 d and 2 d, the addition of fly ash (FA) increased the early age specific tensile creep of HPC, while blast furnace slag (BFS) showed an opposite effect. When the loading age was later than 3 d, the early age specific tensile creep of HPC was not obviously influenced by FA and BFS. Based on the experimental results, a rheology-based model (named as "ZC", initials for the word "Self-developed" in Chinese) was proposed to predict the early age tensile creep of HPC with mineral admixtures. The ZC model was validated with other experimental results, and the prediction results agreed well with the experimental data. Moreover, the limitations and further improvements on the proposed model were also discussed in the paper. (C) 2018 Elsevier Ltd. All rights reserved.

引用

页码：766 / 777

页数：12

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