A PROGRAM TO TEST CEMENTS FOR VARIATIONS IN STRENGTH PRODUCING PROPERTIES
FIVE BRANDS OF CEMENT PRODUCED IN SOUTHERN CALIFORNIA WERE SAMPLED AND TESTED MONTHLY BY A READY MIXED CONCRETE PRODUCER. THE COMPRESSIVE STRENGTH POTENTIAL OF THE CEMENTS WAS CHECKED BY USING A CUBE TEST WHICH USED A MORE REALISTIC CEMENT CONTENT AND A CONSTANT WATER CONTENT OF 65%. THE RESULTS OF 410 SETS OF CUBES, CHEMICAL ANALYSIS, AND FINENESS DETERMINATIONS ARE REPORTED FOR A 5 YEAR PERIOD. A SAMPLE OF BLENDED CONTROL CEMENT WAS INCLUDED EACH MONTH TO CHECK THE WORKMANSHIP OF THE LABORATORY CONDUCTING THE TESTS. AN ANALYSIS OF THE VARIATIONS IN REPORTED STRENGTH OF THE CONTROLS REVEALED A PATTERN. IT WAS FELT THAT THIS PATTERN WAS CAUSED BY ENVIRONMENTAL INFLUENCES OF THE LABORATORY AND CONTRIBUTED TO A PORTION OF THE VARIATIONS IN THE CEMENTS BEING TESTED. /ACI/
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Supplemental Notes:
- Vol 65, No 4, PP 266-275, 15 FIG, 2 TAB, 3 REF
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Authors:
- Campbell, R H
- Publication Date: 1968-4
Media Info
Subject/Index Terms
- TRT Terms: Cement; Chemical analysis; Compressive strength; Fineness; Testing
- Subject Areas: Highways; Materials;
Filing Info
- Accession Number: 00212608
- Record Type: Publication
- Files: TRIS
- Created Date: Jun 24 1994 12:00AM