Title:
Biphasic Compressive Behavior of Structural Lightweight Concrete
Author(s):
José Alexandre Bogas, Beatriz Ferrer, Jorge Pontes, and Sofia Real
Publication:
Materials Journal
Volume:
114
Issue:
1
Appears on pages(s):
49-56
Keywords:
compressive behavior; structural efficiency; structural lightweight aggregate concrete
DOI:
10.14359/51689478
Date:
1/1/2017
Abstract:
This paper addresses the compressive behavior and structural efficiency of structural lightweight aggregate concrete (SLWAC) produced with different types of lightweight aggregates (LWA), covering strength classes from LC12/13 to LC55/60 and density classes from D1.6 to D2.0. The possible failure modes and the influence of the main constituents of concrete on its compressive strength are analyzed. The mechanical behavior of SLWAC is characterized through its compressive strength, limit strength, ceiling strength, and the strength of the aggregate in concrete, allowing the definition of strength and density classes for SLWAC produced with each type of LWA. A biphasic model to estimate the strength of SLWAC is evaluated, and high correlations between experimental and design values are obtained. Expressions for estimating the strength of the aggregate in concrete are defined, which are valid for different types of coarse lightweight aggregate.
Related References:
1. Chandra, S., and Berntsson, L., Lightweight Aggregate Concrete: Science, Technology and Applications, Noyes Publications/William Andrew Publishing, Norwich, NY, 2002, 452 pp.
2. Holm, T. A., and Bremner, T. W., “State-of-the-Art Report on High-Strength, High-Durability Structural Low-Density Concrete for Applications in Severe Marine Environments,” U.S. Army Engineer Research and Development Center, Vicksburg, MS, 2000, 116 pp.
3. Kockal, N. U., and Ozturan, T., “Strength and Elastic Properties of Structural Lightweight Concretes,” Materials & Design, V. 32, No. 4, 2011, pp. 2396-2403. doi: 10.1016/j.matdes.2010.12.053
4. Bogas, J. A., and Gomes, A., “Non-Steady-State Accelerated Chloride Penetration Resistance of Structural Lightweight Aggregate Concrete,” Cement and Concrete Composites, V. 60, July 2015, pp. 111-122. doi: 10.1016/j.cemconcomp.2015.04.001
5. Bogas, J. A.; Gomes, M. G.; and Gomes, A., “Compressive Strength Evaluation of Structural Lightweight Concrete by Non-Destructive Ultrasonic Pulse Velocity Method,” Ultrasonics, V. 53, No. 5, 2013, pp. 962-972. doi: 10.1016/j.ultras.2012.12.012
6. EuroLightCon, “LWAC Material Properties – State-of-the-Art,” European Union – Brite EuRam III, Document BE96-3942/R2, 1998, 109 pp.
7. Kockal, N. U., and Ozturan, T., “Optimization of Properties of Fly Ash Aggregates for High-Strength Lightweight Concrete Production,” Materials & Design, V. 32, No. 6, 2011, pp. 3586-3593. doi: 10.1016/j.matdes.2011.02.028
8. Ke, Y.; Beaucour, A. L.; Ortola, S.; Dumontet, H.; and Cabrillac, R., “Influence of Volume Fraction and Characteristics of Lightweight Aggregates on the Mechanical Properties of Concrete,” Construction and Building Materials, V. 23, No. 8, 2009, pp. 2821-2828. doi: 10.1016/j.conbuildmat.2009.02.038
9. Faust, T., “Properties of Different Matrixes and LWAs and Their Influences on the Behaviour of Structural LWAC,” Second International Symposium on Structural Lightweight Aggregate Concrete, S. Helland, I. Holand, and S. Smeplass, eds., Kristiansand, Norway, June 18-22, 2000, pp. 502-511.
10. FIP, FIP Manual of Lightweight Aggregate Concrete, second edition, Fédération Internationale de la Précontrainte (FIP), Surrey University Press, 1983, 259 pp.
11. Gerritse, A., “Design Considerations for Reinforced Lightweight Concrete,” The International Journal of Cement Composites and Lightweight Concrete, V. 3, No. 1, 1981, pp. 57-69. doi: 10.1016/0262-5075(81)90031-2
12. Bogas, J. A., and Gomes, A., “Compressive Behavior and Failure Modes of Structural Lightweight Aggregate Concrete — Characterization and Strength Prediction,” Materials & Design, V. 46, Apr. 2013, pp. 832-841. doi: 10.1016/j.matdes.2012.11.004
13. Chen, H. J.; Yen, T.; Lia, T. P.; and Huang, Y. L., “Determination of the Dividing Strength and its Relation to the Concrete Strength in Lightweight Aggregate Concrete,” Cement and Concrete Composites, V. 21, No. 1, 1999, pp. 29-37. doi: 10.1016/S0958-9465(98)00035-3
14. ACI Committee 213, “Guide for Structural Lightweight-Aggregate Concrete (ACI 213R-03),” American Concrete Institute, Farmington Hills, MI, 2003, 38 pp.
15. Wasserman, R., and Bentur, A., “Interfacial Interactions in Lightweight Aggregate Concretes and Their Influence on the Concrete Strength,” Cement and Concrete Composites, V. 18, No. 1, 1996, pp. 67-76. doi: 10.1016/0958-9465(96)00002-9
16. Elsharief, A.; Cohen, M. D.; and Olek, J., “Influence of Lightweight Aggregate on the Microstructure and Durability of Mortar,” Cement and Concrete Research, V. 35, No. 7, 2005, pp. 1368-1376. doi: 10.1016/j.cemconres.2004.07.011
17. Chen, H.-J.; Yen, T.; and Ko, C.-T., “Influence of Properties and Gradation of Lightweight Aggregate on the Fg of Lightweight Aggregate Concrete,” International Symposium on Structural Lightweight Aggregate Concrete, I. Holand, T. A. Hammer, and F. Fluge, eds., Sandefjord, Norway, June 1995, pp. 472-480.
18. Hammer, T. A., and Smeplass, S., “The Influence of Lightweight Aggregate Properties on Material Properties of the Concrete,” International Symposium on structural lightweight aggregate concrete, I. Holand, T. A. Hammer, and F. Fluge, eds., Sandefjord, Norway, June 1995, pp. 517-532.
19. Rossignolo, J. A.; Agnesini, M. V. C.; and Morais, J. A., “Properties of High-Performance LWAC for Precast Structures with Brazilian Lightweight Aggregates,” Cement and Concrete Composites, V. 25, No. 1, 2003, pp. 77-82. doi: 10.1016/S0958-9465(01)00046-4
20. Coquillat, G., “Influence des caractéristiques physiques et mécaniques des granulats légers sur les propriétés des bétons légers de structure,” Granulats et bétons légers: bilan de dix ans de recherches, M. Arnould and M. Virlogeux, eds., Presses de l’École Nationale des Ponts et Chaussées, Paris, France, 1986, pp. 255-298.
21. Zhang, M. H., and Gjørv, O. E., “Mechanical Properties of High-Strength Lightweight Concrete,” ACI Materials Journal, V. 88, No. 3, May-June 1991, pp. 240-247.
22. Swamy, R. N., and Lambert, G. H., “Mix Design and Properties of Concrete Made from PFA Coarse Aggregates and Sand,” International Journal of Cement Composites and Lightweight Concrete, V. 5, No. 4, 1983, pp. 263-275. doi: 10.1016/0262-5075(83)90068-4
23. Al-Khaiat, H., and Haque, N., “Strength and Durability of Lightweight and Normal Weight Concrete,” Journal of Materials in Civil Engineering, ASCE, V. 11, No. 3, 1999, pp. 231-235. doi: 10.1061/(ASCE)0899-1561(1999)11:3(231)
24. CEN, “Concrete – Part 1: Specification, Performance, Production and Conformity (EN 206-1:2005),” European Standard, CEN, Brussels, Belgium, 2005, 84 pp.
25. Bogas, J. A.; Gomes, A.; and Gomes, M. G., “Estimation of Water Absorbed by Expanding Clay Aggregates during Structural Lightweight Concrete Production,” Materials and Structures, V. 45, No. 10, 2012, pp. 1565-1576. doi: 10.1617/s11527-012-9857-7
26. CEN, “Testing Hardened Concrete — Compressive Strength of Test Specimens (EN 12390-3:2009),” European Standard, CEN, Brussels, Belgium, 2009, 19 pp.
27. CEN, “Testing Hardened Concrete – Density of Hardened Concrete (EN 12390-7:2009),” European Standard, CEN, Brussels, Belgium, 2009, 12 pp.
28. Bogas, J. A., and Gomes, T., “Mechanical and Durability Behavior of Structural Lightweight Concrete Produced with Volcanic Scoria,” Arabian Journal for Science and Engineering, V. 40, No. 3, 2015, pp. 705-717. doi: 10.1007/s13369-014-1550-4
29. Videla, C., and López, M., “Effect of Lightweight Aggregate Intrinsic Strength on Lightweight Concrete Compressive Strength and Modulus of Elasticity,” Materiales de Construcción, V. 52, No. 265, 2002, pp. 23-37. doi: 10.3989/mc.2002.v52.i265.342