STRENGTH AND DENSITY OF LABORATORY-PREPARED RCC SPECIMENS: EFFECT OF COMPACTION PROCEDURE
Appropriate compaction is essential in producing roller-compacted concrete (RCC). An experimental program was conducted to study the effect of compaction on the strength and density of RCC specimens. Compaction was achieved by tamping the sample with a hammer similar to that of the American Society for Testing and Materials D 1557. The main variables were the magnitude of compaction energy, number of layers per mold, and cement content. The compaction energy ranged from 300 kN-m/cu m to 2,700 kN-m/cu m. The test results revealed that the decrease of the unit weight by 7.7% decreased the compressive and splitting tensile strengths by 73% and 71%, respectively. Increasing the cement content compensated for the reduction in compaction energy. The average degree of compaction of the cores taken from the field RCC test slabs was 99% of the unit weight of field samples prepared with a 2,700 kN-m/cu m compaction energy.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/oclc/3528769
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Supplemental Notes:
- Financial support for this research was provided under Research Grant No. AR-14-20 by the King Abdulaziz City for Science and Technology.
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Corporate Authors:
American Society for Testing and Materials (ASTM)
100 Barr Harbor Drive, P.O. Box C700
West Conshohocken, PA United States 19428-2957 -
Authors:
- Shihata, S A
- Publication Date: 2000-6
Language
- English
Media Info
- Features: Figures; References; Tables;
- Pagination: p. 1-9
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Serial:
- Cement, Concrete and Aggregates
- Volume: 22
- Issue Number: 1
- Publisher: American Society for Testing and Materials (ASTM)
- ISSN: 0149-6123
- Serial URL: http://journalsip.astm.org/JOURNALS/CEMENT/cca_home.html
Subject/Index Terms
- TRT Terms: Casting; Cement content; Compaction; Compressive strength; Concrete curing; Density; Energy; Experiments; Field tests; Hammers; Laboratory tests; Mix design; Roller compacted concrete; Roller compacted concrete pavements; Slabs; Strength of materials; Tamping; Tensile strength; Weight
- Identifier Terms: ASTM International
- Subject Areas: Energy; Highways; Materials; Pavements; I23: Properties of Road Surfaces; I32: Concrete;
Filing Info
- Accession Number: 00794128
- Record Type: Publication
- Contract Numbers: AR-14-20, MSS-9114313
- Files: TRIS
- Created Date: Jun 28 2000 12:00AM