首页   按字顺浏览 期刊浏览 卷期浏览 Clam' Tests for Measuring in-Situ Permeation Properties of Concrete
Clam' Tests for Measuring in-Situ Permeation Properties of Concrete

 

作者: P. A. M. Basheer,   F. R. Montgomery,   A. E. Long,  

 

期刊: Nondestructive Testing and Evaluation  (Taylor Available online 1995)
卷期: Volume 12, issue 1  

页码: 53-73

 

ISSN:1058-9759

 

年代: 1995

 

DOI:10.1080/10589759508952835

 

出版商: Taylor & Francis Group

 

关键词: Concrete;Concrete;non-destructive test;in-situ test;permeability;sorptivity;durability;assessment

 

数据来源: Taylor

 

摘要:

This paper descirbes a simple test measuring the sorptivity (a measure of the absorption property if concrete) and the air and water permeability of concrete on site. Using this test, the decay of pressure is monitired for the air permeability test.whereas water penetrating into the concrete at a constant pressure of 0.01 bar and 1.5 bar are recorded for the sorptivity and the water permeability tests respectively. These tests are essentially non-destructive in nature and a skilled operator is not needed. It is possible to carry out a number of tests quickly and efficiently on site without prior planning. It has been found that statistically satisfactory results can be obtained from a mean of three tests. As the flow lines are largely concentrated within 40 mm from the surface, reasonably reliable results can be obtained by drying the surface even if the surface under test is initially wet.

 

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