A WATER ABSORPTION TEST FOR CONCRETE
The durability of concrete near an exposed surface is largely determined by the rate at which harmful agents can penetrate into the concrete. This paper presents a simple analysis of the penetration of water into unsaturated concrete and describes a method by which the material constant that determines the rate of penetration, the sorptivity, can be measured, together with the effective porosity. The sorptivity is found to depend on the permeability and porosity of the concrete and the strength of capillary forces. The experimental results conform well to the predictions of the analysis and significant variations in sorptivity have been observed for concretes containing cement replacement materials and subject to different curing regimes.(a)
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/00249831
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Corporate Authors:
Thomas Telford Limited
London, United KingdomBUILDING RESEARCH ESTABLISHMENT, SCOTTISH LABORATO
THOMAS TELFORD HOUSE, 1 HERON QUAY
London, United Kingdom -
Authors:
- Kelham, S
- Publication Date: 1988-7
Language
- English
Media Info
- Pagination: p. 106-10
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Serial:
- MAGAZINE OF CONCRETE RESEARCH
- Volume: 40
- Issue Number: 143
- Publisher: Thomas Telford Limited
- ISSN: 0024-9831
Subject/Index Terms
- TRT Terms: Concrete; Concrete curing; Evaluation and assessment; Mathematical models; Mix design; Pendulum tests; Permeability; Porosity; Scale models; Structural models; Water
- Old TRIS Terms: Unsaturated (Mater)
- ITRD Terms: 4755: Concrete; 4702: Curing (concrete); 5907: Degree of saturation (mater); 9020: Evaluation (assessment); 6473: Mathematical model; 4714: Mix design; 6205: Model (not math); 6285: Penetration; 5921: Permeability; 5938: Porosity; 4355: Water
- Subject Areas: Bridges and other structures;
Filing Info
- Accession Number: 00481665
- Record Type: Publication
- Source Agency: Transport and Road Research Laboratory (TRRL)
- Files: ITRD, TRIS
- Created Date: Apr 30 1989 12:00AM