EXPERIMENTAL INVESTIGATION ON CONCRETE PERFORATED BRICK WALL SHINKAGE AT DIFFERENT AGES

Fu Jun; Jin Weiliang; Cui Yang; Zou Zhenli

doi:10.13204/j.gyjz201106020

Volume 41 Issue 6

Dec. 2014

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Fu Jun, Jin Weiliang, Cui Yang, Zou Zhenli. EXPERIMENTAL INVESTIGATION ON CONCRETE PERFORATED BRICK WALL SHINKAGE AT DIFFERENT AGES[J]. INDUSTRIAL CONSTRUCTION, 2011, 41(6): 92-96. doi: 10.13204/j.gyjz201106020

Citation:

Fu Jun, Jin Weiliang, Cui Yang, Zou Zhenli. EXPERIMENTAL INVESTIGATION ON CONCRETE PERFORATED BRICK WALL SHINKAGE AT DIFFERENT AGES[J]. INDUSTRIAL CONSTRUCTION, 2011, 41(6): 92-96. doi: 10.13204/j.gyjz201106020

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EXPERIMENTAL INVESTIGATION ON CONCRETE PERFORATED BRICK WALL SHINKAGE AT DIFFERENT AGES

doi: 10.13204/j.gyjz201106020

1.
1. Zhejiang Sci-Tech University,Hangzhou 310018,China;
2.
2. Structural Egineering Institute of Zhejiang University,Hangzhou 310058,China;
3.
3. Zhejiang Huzhou Jianning Engineering Consultation Co.Ltd,Huzhou 313100,China

Received Date: 2010-05-25
Publish Date: 2011-06-20

Abstract

Abstract

It is forbidden to use concrete perforated brick(CPB)wall at early ages for its big shringkage and high water content, Nevertheless, there are still many applications in engineering practice due to various reasons.Engineers should recognize their characteristics, then decide how to repair the walls.Experimental investigation is carried out in this study including bricks and walls.Firstly bricks are tested with water content, compressive strength, and etc;then whole walls at diffirent ages are tested with walls' end deformations and instantaneous strains;at last analysis and estimations are done and engineering restrictions are proposed.It is concluded that some early-age CPB bricks have wet inflations, whereas CPB walls have wet inflation and dry shrinkage circulations.Its shinkage rate is about 1.6~2.010-4.Walls' instantaneous strains show a pressure characreristic at beginning and then to tensile, and tend to be stable at last.Relationship between instantaneous strain and time(age)has an exponential decay trend.Results obtained in this study help engineers to control cracks and repair walls, It reflects the basic characteristics of walls at different ages, and thus has relevant engineering significance.
- shinkage,
- age,
- concrete perforated brick( CPB),
- experimental investigation

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References(22)

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