|本期目录/Table of Contents|

[1]陈峰,郑建岚.自密实混凝土自由收缩试验[J].建筑科学与工程学报,2011,28(02):28-31.
　CHEN Feng,ZHENG Jian-lan.Experiment on Free Shrinkage of Self-compacting Concrete[J].Journal of Architecture and Civil Engineering,2011,28(02):28-31.
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
28卷
期数:
2011年02期
页码:
28-31
栏目:
出版日期:
2011-06-20

文章信息/Info

Title:
Experiment on Free Shrinkage of Self-compacting Concrete
作者:
陈峰1,郑建岚2
1. 福州大学 环境与资源学院,福建 福州 350108; 2. 福州大学 土木工程学院,福建 福州 350108
Author(s):
CHEN Feng1, ZHENG Jian-lan2
1. School of Environment and Resources, Fuzhou University, Fuzhou 350108, Fujian, China; 2. School of Civil Engineering, Fuzhou University, Fuzhou 350108, Fujian, China
关键词:
自密实混凝土;  自由收缩;  粉煤灰;  掺量;  应变;  龄期
Keywords:
self-compacting concrete;  free shrinkage;  fly ash;  incorporation rate;  strain;  age
分类号:
TU528
DOI:
-
文献标志码:
A
摘要:
进行了自密实混凝土的自由收缩试验,以粉煤灰掺量和混凝土龄期作为影响因素,研究其收缩的发展规律; 基于试验数据,通过双曲线方程拟合了自密实混凝土自由收缩的计算式。研究结果表明:自密实混凝土自由收缩随混凝土龄期的增加而增大,后期自由收缩应变增长较缓慢; 当粉煤灰质量掺量在40%时,各阶段的自由收缩应变都最小; 拟合的自密实混凝土自由收缩计算式可以为自密实混凝土结构相关设计提供参考。
Abstract:
Taking incorporation rate of fly-ash and age of concrete as influence factors, the experiment on free shrinkage was conducted in order to study the law of free shrinkage of self-compacting concrete. Based on the test data, the calculating formulae of free shrinkage of self-compacting concrete were put forward by hyperbolic equations. The research results show that free shrinkage of self-compacting concrete grows with age of concrete, and the growth gets slowly in the later. The free shrinkage strain in different stages is the smallest while the incorporation rate of fly ash is 40%. The calculating formulae of free shrinkage of self-compacting concrete can be taken as reference to design of self-compacting concrete structure.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2011-04-05
基金项目:国家自然科学基金项目(50878056); 福建省自然科学基金项目(2010J05110)
作者简介:陈 峰(1980-),男,福建福州人,讲师,工学博士,E-mail:knicks2000@163.com。
更新日期/Last Update: 2011-06-20