THE PH MEASUREMENT OF CONCRETE AND SMOOTHING MORTAR USING A CONCRETE POWDER SUSPENSION
In this study, the authors investigated a method for determining the pH value of concrete and fine smoothing mortar. The method is based on mixing powdered samples with a solvent and measuring the pH of the suspension. The authors conclude that the technique investigated achieves good reproducibility and is feasible. The pH value results of the proposed suspension method could be compared with the results of the extracted pore solution in two normal-strength concretes and in the fine smoothing product. However, sufficient pore solution of the extra-air-entrained concrete and high-strength concrete could not be obtained in the reference method of extraction of the pore solution. The authors stress that particle size of the powder should be constant and as fine as possible. The powder portion should be constant and normally between 40 percent and 60 percent of the total weight of the suspension mixture. Temperature of the power solution should not vary more than 10 degrees Celsius.
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Availability:
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Corporate Authors:
The Boulevard, Langford Lane
Kidlington, Oxford United Kingdom OX5 1GB -
Authors:
- Rasanen, V
- Penttala, V
- Publication Date: 2004-5
Language
- English
Media Info
- Features: Figures; References; Tables;
- Pagination: p. 813-820
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Serial:
- Cement and Concrete Research
- Volume: 34
- Issue Number: 5
- Publisher: Elsevier
- ISSN: 0008-8846
- Serial URL: http://www.sciencedirect.com/science/journal/00088846
Subject/Index Terms
- TRT Terms: Air entrainment; Chemical tests; Concrete; Concrete hardening; Concrete tests; High strength concrete; Mortar; Patching mortar; pH value; Reliability; Suspensions (Chemistry); Validity
- Subject Areas: Highways; Materials; I32: Concrete;
Filing Info
- Accession Number: 00981354
- Record Type: Publication
- Files: TRIS
- Created Date: Nov 2 2004 12:00AM