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Experiment on Free Shrinkage of Self-compacting Concrete(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2011年02期
Page:
28-31
Research Field:
Publishing date:
2011-06-20

Info

Title:
Experiment on Free Shrinkage of Self-compacting Concrete
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
Keywords:
self-compacting concrete;  free shrinkage;  fly ash;  incorporation rate;  strain;  age
PACS:
TU528
DOI:
-
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.

References:

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Last Update: 2011-06-20