Tested and Modeled Relationship between Curing Time and Cube Compressive Strength of Recycled Aggregate Concrete

被引：0

作者：

Zhang Zhengwen ^{[1
]}

Wang Wei ^{[1
]}

Ma Lisha ^{[1
]}

Wang Huanli ^{[1
]}

Pan Gaojie ^{[1
]}

Zhang Shuai ^{[1
]}

机构：

[1] Shaoxing Univ, Dept Civil Engn, Shaoxing City 312000, Peoples R China

来源：

ADVANCED MEASUREMENT AND TEST, PARTS 1 AND 2 | 2010年 / 439-440卷

关键词：

Recycled aggregate concrete; time effect; compressive strength; mathematical model;

D O I：

10.4028/www.scientific.net/KEM.439-440.563

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Recently, more and more concrete structures are demolished and rebuild, and a large amount of demolished concretes are reused as materials for recycled aggregate concrete (RAC). It is very important to correctly describe time-dependent compressive strength of RAC before the design of corresponding RAC structures. In this paper, compressive strength tests of RAC with different curing times are conducted, and a new three-parameter mathematical model for time-strength curve is presented according to exponent function. Approaches to determine parameters of the proposed model are presented based on characterized points of tested time-strength curve. Finally, good agreements have been found between tested data and new model fittings. The result of this paper is helpful to the numerical analysis and practical engineering design of RAC structures.

引用

页码：563 / 566

页数：4

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