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Structural Behavior of Lightweight Concrete Made With Scoria Aggregates and Mineral Admixtures

Authors: M. Shannag, A. Charif, S. Naser, F. Faisal, A. Karim


Structural lightweight concrete is used primarily to reduce the dead-load weight in concrete members such as floors in high-rise buildings and bridge decks. With given materials, it is generally desired to have the highest possible strength/unit weight ratio with the lowest cost of concrete. The work presented herein is part of an ongoing research project that investigates the properties of concrete mixes containing locally available Scoria lightweight aggregates and mineral admixtures. Properties considered included: workability, unit weight, compressive strength, and splitting tensile strength. Test results indicated that developing structural lightweight concretes (SLWC) using locally available Scoria lightweight aggregates and specific blends of silica fume and fly ash seems to be feasible. The stress-strain diagrams plotted for the structural LWC mixes developed in this investigation were comparable to a typical stress-strain diagram for normal weight concrete with relatively larger strain capacity at failure in case of LWC.

Keywords: fly ash, stress, silica fume, lightweight concrete, scoria, strain

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[1] ACI 213-87, "Guide for Structural Lightweight Aggregate Concrete”, ACI 213-87, Manual of Concrete Practice, Part 1, American Concrete Institute, Detroit, Michigan, 1995.
[2] A. M. Neville, Properties of Concrete, John Wiley and Sons inc., New York, 1996.
[3] S. Mindess, F. Young, Darwin, Concrete, 2nd edition, New Jersey, Prentice-Hall, 1996.
[4] H.Z. Min, and E. Gjorv, "characteristics of lightweight aggregate for high strength concrete." ACI Materials Journal, V.88, No.2 , 1990. P150-158.
[5] C.J. Waldron, "Demonstration of Use of High-Performance Lightweight Concrete in Bridge Superstructure in Virginia” Journal of performance of Constructed Facilities, Vol. 19, No. 2, May 2005, pp. 146-154.
[6] K.F. Meyer, and L.F. Khan, "Lightweight Concrete Reduces Weight and Increases Span Length of Pretensioned Bridge Girders”, PCI Journal, 2002.
[7] K.M. Hossain, "Properties of Volcanic Pumice Based Cement and Lightweight Concrete", Cement and Concrete Research, 34, 2004, 283-291.
[8] J.M. Chi Yang, J.J. Chang, "Effect of aggregate properties on the strength and stiffness of lightweight concrete", Journal of cement and Concrete composites, 2002.
[9] D.C. Teo, M.A. Mannan, V.J. Kurian, C. Ganapathy, "Lightweight Concrete Made from Oil Palm Shell (OPS): Structural Bond and Durability Properties", Building and Environment, 42, 2007, 2614-2621.
[10] B. Chen, and J. Liu, "Experimental Application of Mineral admixtures in Lightweight Concrete with High Strength and Workability" Construction and Building Materials, 2008.
[11] ASTM C 330-89, "Standard Specification for Lightweight Aggregates for Structural Concrete”, Annual Book of ASTM Standards, 4.02, 193-195
[12] ASTM C 33-97, "Standard Specification for Concrete Aggregates”, Annual Book of ASTM Standards, Vol. 4.02, pp.10-16.
[13] ASTM C 150-97a, "Standard Specification for Portland Cement”, Annual Book of ASTM Standards, Vol. 4.01, pp. 134-137.