FIELD INVESTIGATION OF A METHOD FOR THE RAPID ANALYSIS OF FRESH CONCRETE
This report describes a field trial of a method for the rapid analysis of fresh concrete developed by the scientific branch of the Greater London Council. The method analyses the constituents of a concrete mix on a weight basis; it provides cement and water contents and an aggregate grading within twenty to thirty minutes of sampling. The repeatability of the cement content determinations from this limited trial was approximately two per cent of the total mix; modifications to the apparatus could probably improve this performance. The repeatability of the water content determination was approximately one per cent of the total mix. The method proved suitable for operation under site conditions. The use of nitrobenzene however requires provision of good ventilation for its safe operation. Duplicate sampling was incorporated in this trial so that the contributions, to the overall variability, of the sampling, testing and load-to-load variabilities could be examined. /Author/TRRL/
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Corporate Authors:
Transport and Road Research Laboratory (TRRL)
Wokingham, Berkshire United Kingdom -
Authors:
- EDWARDS, A C
- Goodsall, G D
- Publication Date: 1973
Language
- English
Media Info
- Features: Figures; References; Tables;
- Pagination: 10 p.
Subject/Index Terms
- TRT Terms: Admixtures; Aggregate gradation; Cement content; Moisture content; Polymer concrete; Sampling; Test procedures
- Uncontrolled Terms: Reproducibility
- ITRD Terms: 4577: Aggregate; 6155: Apparatus (measuring); 4758: Cement; 7163: Chemical analysis; 7175: Colloid; 4750: Fresh concrete; 6226: In situ; 4714: Mix design; 5920: Moisture content; 6200: Particle size distribution; 5927: Reproducibility; 6253: Sampling; 5485: Weight
- Subject Areas: Highways; Materials;
Filing Info
- Accession Number: 00083174
- Record Type: Publication
- Source Agency: Transport and Road Research Laboratory (TRRL)
- Report/Paper Numbers: Report LR 560
- Files: ITRD, TRIS
- Created Date: Jul 2 1975 12:00AM