EMBEDDED LENGTH OF STEEL BARS IN SELF COMPACTED CONCRETE (SCC)
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Abstract
Experimental research was carried out on eight reinforced concrete beams to study the embedded length of the longitudinal reinforcement. Six beams were casted using self compacted concrete, and the two other beams were casted using normal concrete. The test was carried out on beams subjected to two point loads. The strain and the slip of the main reinforcement have been measured by using grooves placed during casting the beams at certain places. The measured strain used to calculate the longitudinal stresses (bond stress) surrounding the bar reinforcement, The study was investigated the using of self compacted concrete SCC on the embedded length of reinforcing bars, and comparing the results with normal concrete. The test results show that using SCC improve the concrete properties like the compressive strength and the tensile strength which mainly affected the bond strength and the splitting of the concrete cover failure. The testes show that with increasing concrete strength the bond strength increased.
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- A. Foroughi-Asl, S. Dilmaghani. and H. Famili "Bond Strength of Reinforcement Steel in Self Compacted
Concrete", International Journal of Civil Engineering, Vol.6, No. 1, March 2008. pp. 24-33.
- ASTM Designation C150-02"Standard Specification for Portland Cement " 2002 Annual Book of ASTM Standard,
American Society for Testing and Material, Philadelphia Pennsylvania, Section4,Vol. 4.02. pp. 89-93.
- ASTM Designation C33-03"Standard Specification for Concrete Aggregate" 2002 Annual Book of ASTM Standard,
American Society for Testing and Material, Philadelphia Pennsylvania, Section4, Vol. 4.02, pp. 10-16.
- ASTM Designation A615-05a"Standard Specification for Testing Method and Definitions for Mechanical
Testing of Steel Products "2002 Annual Book of ASTM Standard, American Society for Testing and Material, Philadelphia Pennsylvania, Section4, Vol. 1.01, pp. 248-287C.
- C. Avram, I. Facaorau,O. Mirsu, I. Filimon and I. Tertea" Concrete strength and strains", Elsevier Scientific Publishing Company, pp. 105-133, 1981
- E. L. Kemp, andW. J. Wilhelm, "Investigation of the Parameters Influencing Bond Cracking" ACI Journal, Proceedings V. 76, No. 1, Jan. 1979, PP 47-72.
- C. O. Orangun, J. O. Jirsa, and J. E. Breen "The Strength of Anchoraged Bars: A Reevaluation of Test Data on Development Length and Splices", Research Report No. 154-3F, Centre for Highway Research, The University of
Texas at Austin, Jan. 1975, pp78.
- P. M. Ferguson, R. D. Turpin, and J. N. Thompson" Minimum Bar Spacing as a Function of Bond and Shear Strength",
ACI Journal, Proceedings V.50, No.10,June 1954, pp. 869-887.
- P. M. Ferguson, and J.N. Thompson, "Development Length of High Strength Reinforcing Bars in Bond", ACI Journal,
Proceedings V. 59, No. 7, July 1962, pp887-992
- R. E. Untrauer, and R. L. Henry, "Influence of Normal Pressure on Bond Strength", ACI Journal, Proceedings V. 62, No. 5, May 1965, pp. 577-586.
- S. Mindess, J. F. Young, and D. Darwin, "Concrete Design", Second Edition, Prentice Hall, 2003.
- S. Caijin, and W. Yanzahong, "Mixture Proportioning and Properties of Self- Consolidating Lightweight Concrete
Containing Glass Powder", ACI Materials Journal, Vol. 102, No. 5, Sep./Oct. 2005, pp. 355-363.
- Timo Wüstholz, "Fresh Properties of Self-Compacting Concrete", Otto-Graf- Journal, Vol. 14, 2003, pp. 179-188.
- T. A. Holm, "Light Weight Concrete and Aggregates", Standard technical Publication 169C, 1994.
- W. Zhu, M. Sonebi and P.J.M. Bartos "Bond and Interfacial Properties of Reinforcement in-Self Compacted
Concrete", Advanced Concrete and Masonry Cement, University of Paisley, PA12BE, Scotland, UK, 2000 pp. 442-448.