Mechanical Properties of Self-Compacted Concrete
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Abstract
In this research, trial mixes were conducted according to Self-Compacted Concrete (SCC) specifications, a mix that gave a higher compressive strength to the age of seven days has been selected. Then after selecting the appropriate mix, concrete samples had poured and were distributed into five groups; each group consists of six cubes, six cylinders, and six prisms. The samples of each group are testing for compressive, tensile splitting, and flexure strengths respectively for the ages of 7, 14, 28, 60, and 90 days respectively. Before of conduction of destructive tests, the samples were tested using ultrasonic waves to determine the relationship between the concrete strength and pulse velocity and in the same way for all ages in above. Experimental results showed that, all concrete mechanical properties have improved, and the maximum improve was in flexural strength followed by compressive strength and tensile splitting strength. The cube compressive strength increased according to (G1 at 7 days curing) from 34.3% to 71.8%, the percentage of increase of tensile strength according to (G1 at 7 days curing) from 16.8% to 64.3% , modulus of rupture increased according to (G1 at 7 days curing) from 34.6% to 98.7% for ages (14, 28, 60, 90 days) respectively. Pulls velocity increased according to (G1 at 7 days curing): For cube from 5.1% to 23.9%, for cylinder from 21.4% to 40.3%, for prisms from 7.1% to 29.2%.
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References
- RILEM, “State-of-the-Art Report of RILEM Technical Committee 174-SCC, Self-Compacting Concrete”, Report 23, Ä. Skarendahl and O. Petersson, eds., 154pp, 2000.
- Khayat, K. H., and Aïtcin, P.-C., “Use of Self- Consolidating Concrete in Canada—Present Situation and Perspectives”, Proceedings of the Workshop on Self-Compacting Concrete, Kochi, Japan, 1998.
- Skarendahl, Ä., “Market Acceptance of Self-Compacting Concrete, the Swedish Experience”, Proceedings of the Second International Symposium on SCC, K. Ozawa and M. Ouchi, eds., Tokyo, pp.1-12, 2001.
- Walraven, J. C., “State of the Art on Self- Compacting Concrete in the Netherlands”, Proceedings of the Second International Symposium on SCC, K. Ozawa and M. Ouchi, eds., Tokyo, pp.13-24, 2001.
- K. Ozawa and M. Ouchi, eds,. “Current Condition of Self-Compacting Concrete in Japan”, Proceedings of the Second International Symposium on SCC, K. Ozawa and M. Ouchi, eds., Tokyo, pp.63-68, 2001.
- Vachon, M., and Daczko, J., “U.S. Regulatory Work on SCC”, Proceedings of the First North American Conference on the Design and Use of SCC, ACBM, Chicago, Ill., Nov. 12-13, pp.423-428, 2002.
- EFNARC, “Specification and Guidelines for Self-compacting Concrete”, February 32pp, 2002.
- Iraqi Standard Specification No.5, “Portland Cement”, Central Agency for Standardization and Quality Control, Baghdad, 1984.
- Reference Guide Directory No. 198, “Physical Tests of Portland Cement”, Central Organization for Standardization and Quality Control, 42 pages, Baghdad, 1990.
- Reference Guide Directory No. 472, “Chemical Tests of Portland Cement”, Central Organization for Standardization and Quality Control, 20 pages, Baghdad, 1993.
- Iraqi Standard Specification No.45, "Natural Aggregate Resources used in Concrete and Construction", Central Agency for Standardization and Quality Control, Baghdad, 1984.
- ASTM C128–01, "Standard Test Method for Density, Relative Density (Specific Gravity), and Absorption of Fine Aggregate", Annual Book of ASTM Standards, Vol. 04.02, pp. 74-79, 2004.
- ASTM C1240-03, "Standard Specification for Use of Silica Fume as a Mineral Admixture in Hydraulic-Cement Concrete, Mortar, and Grout."
- ACI 234R-06," Guide for the Use of Silica Fume in Concrete."
- Ravindrarajah, R.S., Farrokhzadi, F. and Lahoud, A., “Properties of Flowing Concrete and Self-compacting Concrete with High-performance superplasticizer”, 3rd International RILEM Symposium, RILEM Publications, August, 10pp, 2003.
- BS 1881, Part 116, "Method for Determination of Compressive Strength of Concrete Cubes", British Standards Institution, 1881; PP.3, 1989.
- ASTM C496/C496M–04, "Standard Test Methods for Splitting Tensile Strength of Cylindrical", ASTM Standards, Vol. 04.02, pp. 283–287, 2004.
- ASTM C1018–97, "Standard Test Methods for Flexural Toughness and First–Crack Strength of Fiber–Reinforced Concrete (Using Beam with Third Point Loading)", Annual Book of ASTM Standards, Vol. 04.02, pp. 544–551, 2004.