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.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/3528769
• 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.
• 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
• 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