Computers and Concrete

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Effect of presoaking degree of lightweight aggregate on the properties of lightweight aggregate concrete

  • Tang, Chao-Wei (Department of Civil Engineering & Geomatics, Cheng Shiu University)
  • Received : 2016.01.06
  • Accepted : 2016.10.21
  • Published : 2017.01.25
⟨ Previous Next ⟩

Abstract

This study aimed at exploring the effect of presoaking degree of lightweight aggregate (LWA) on the fresh and hardened properties of concrete. Two series (i.e., Series A and Series B) of concrete mixes that were made of LWA with different moisture states were prepared. The presoaking degree of LWA was divided into three types: oven dry state, 1 hour prewetted and 24 hours prewetted. For the Series A, the water content of the lightweight aggregate concrete (LWAC) mixes was adjusted in accordance with the moisture condition of the LWA. Whereas the amount of water added in the Series B mixes was deliberately not adjusted for the moisture condition of the LWA. Slump test, mechanical tests, interfacial transition zone microscopical tests and thermal conductivity test were carried out on the specimens of different concretes and compared with control normal-weight aggregate concretes. The test results showed that the effect of mixing water absorption by LWA with different moisture states was reflected in the fresh concrete as the loss of mixture workability, while in the hardened concrete as the increase of its strength. With the use of oven-dried LWA, the effect of reduction of water-cement ratio was more significant, and thus the microstructure of the ITZ was more compact.

Keywords

References

  1. ASTM C177-13 (2013), Standard Test Method for Steady-State Heat Flux Measurements and Thermal Transmission Properties by Means of the Guarded-Hot-Plate Apparatus, ASTM International, West Conshohocken, PA.
  2. ASTM C496-96 (1996), Standard Test Method for Splitting Tensile Strength of Cylindrical Concrete Specimens, ASTM International, West Conshohocken, PA.
  3. ASTM C469/C469M-14 (2014), Standard Test Method for Static Modulus of Elasticity and Poisson's Ratio of Concrete in Compression, ASTM International, West Conshohocken, PA.
  4. ASTM C39/C39M-14a (2014), Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens, ASTM International, West Conshohocken, PA.
  5. ASTM C78/C78M-10 (2010), Standard Test Method for Flexural Strength of Concrete (Using Simple Beam with Third-Point Loading), ASTM International, West Conshohocken, PA.
  6. BE96-3942/R20 (2000), The Effect of the Moisture History on the Water Absorption of Lightweight Aggregates, EuroLightCon.
  7. Beycioglu, A., Arslan, M.E., Bideci, O.S., Bideci, A. and Emiroglu, M. (2015), "Bond behavior of lightweight concretes containing coated pumice aggregate: Hinged beam approach", Comput. Concrete, 16(6), 909-918. https://doi.org/10.12989/cac.2015.16.6.909
  8. Bogas, J.A., Gomes, M.G. and Sofia Real, S. (2015), "Capillary absorption of structural lightweight aggregate concrete", Mater. Struct., 48(9), 2869-2883. https://doi.org/10.1617/s11527-014-0364-x
  9. Chandra, S. and Berntsson, L. (2002), Lightweight Aggregate Concrete, Noyes Publications, New York, U.S.A.
  10. Domagala, L. (2015), "The effect of lightweight aggregate water absorption on the reduction of water-cement ratio in fresh concrete", Proc. Eng., 108, 206-213. https://doi.org/10.1016/j.proeng.2015.06.139
  11. Franus, M., Barnat-Hunek, D. and Wdowin, M. (2016), "Utilization of sewage sludge in the manufacture of lightweight aggregate", Environ. Monit. Assess, 188(1), 10. https://doi.org/10.1007/s10661-015-5010-8
  12. Galle, C. (2001), "Effect of drying on cement-based materials pore structure as identified by mercury intrusion porosimetry-A comparative study between oven-, vacuum-, and freeze-drying", Cement Concrete Res., 31(10), 1467-1477. https://doi.org/10.1016/S0008-8846(01)00594-4
  13. GB/T2842-81 (1981), Test Method for Lightweight Aggregates, China National Standard.
  14. Golias, M., Castro, J. and Weiss, J. (2012), "The influence of the initial moisture content of lightweight aggregate on internal curing", Constr. Build. Mater., 35, 52-62. https://doi.org/10.1016/j.conbuildmat.2012.02.074
  15. Holm, T.A., Ooi, O.S. and Bremner, T.W. (2004), Moisture Dynamics in Lightweight Aggregate and Concrete, Expanded Shale Clay & Slate Institute.
  16. Hwang, C.L. and Tran, V.A. (2015), "A study of the properties of foamed lightweight aggregate for self-consolidating concrete", Constr. Build. Mater., 87, 78-85. https://doi.org/10.1016/j.conbuildmat.2015.03.108
  17. Ji, T., Zheng, D.D., Chen, X.F., Lin, X.J. and Wu, H.C. (2015), "Effect of prewetting degree of ceramsite on the early-age autogenous shrinkage of lightweight aggregate concrete", Constr. Build. Mater., 98, 102-111. https://doi.org/10.1016/j.conbuildmat.2015.08.102
  18. Kabay, N., Kizilkanat, A.B. and Tufekci, M.M. (2016), "Effect of prewetted pumice aggregate addition on concrete properties under different curing conditions", Period. Polytech. Civil Eng., 60(1), 89-95.
  19. Lo, Y., Gao, X.F. and Jeary, A.P. (1999), "Microstructure of prewetted aggregate on lightweight concrete", Build. Environ., 34(6), 759-764. https://doi.org/10.1016/S0360-1323(98)00060-2
  20. Lo, Y., Cui, H.Z. and Li, Z.G. (2004), "Influence of aggregate prewetting and fly ash on mechanical properties of lightweight concrete", J. Waste Manage., 24(4), 333-338. https://doi.org/10.1016/j.wasman.2003.06.003
  21. Lo, Y., Cui, H.Z., Tang, W.C. and Leung, W.M. (2008), "The effect of aggregate absorption on pore area at interfacial zone of lightweight concrete", Constr. Build. Mater., 22(4), 623-628. https://doi.org/10.1016/j.conbuildmat.2006.10.011
  22. Oktay, H., Yumrutas, R. and Akpolat, A. (2015), "Mechanical and thermophysical properties of lightweight aggregate concretes", Constr. Build. Mater., 96, 217-225. https://doi.org/10.1016/j.conbuildmat.2015.08.015
  23. Punkki, J. and Giorv, O.E. (1993), "Water absorption by highstrength lightweight aggregate", Proceedings of the Symposium of Utilization of High Strength Concrete, Lillehammer, Norway, 20-23.
  24. Sandvik, M. and Hammer, T.A. (1995), "The development and use of high performance lightweight aggregate concrete", Proceedings of the Congress Structural Lightweight Aggregate Concrete, Sandefjord, Norway, 617-627.
  25. Smeplass, S., Hammer, T. and Sandvik, M. (1995), "Production of structural high strength LWAC with initially dry aggregates", Proceedings of the Congress Structural Lightweight Aggregate Concrete, Sandefjord, Norway, 390-396.
  26. Somayaji, S. (2001), Civil Engineering Materials, Prentice Hall, Upper Siddle River, New Jersey, U.S.A.
  27. Tang, C.W., Chen, H.J., Wang, S.Y. and Spaulding, J. (2011), "Production of synthetic lightweight aggregate using reservoir sediments for concrete and masonry", Cement Concrete Compos., 33(2), 292-300. https://doi.org/10.1016/j.cemconcomp.2010.10.008
  28. Tang, C.W. (2014), "Producing synthetic lightweight aggregates by treating waste TFT-LCD glass powder and reservoir sediments", Comput. Concrete, 13(2), 149-171. https://doi.org/10.12989/cac.2014.13.2.149
  29. Tang, C.W. (2015), "Local bond stress-slip behavior of reinforcing bars embedded in lightweight aggregate concrete", Comput. Concrete, 16(3), 449-466. https://doi.org/10.12989/cac.2015.16.3.449
  30. Young, J.F., Mindess, S. and Daewin, D. (2002), Concrete, Prentice-Hall, Inc., Upper Saddle River, New Jersey, U.S.A.
  31. Zaichenkoa, M., Lakhtarynaa, S. and Korsunb, A. (2015), "The influence of extra mixing water on the properties of structural lightweight aggregate concrete", Proc. Eng., 117, 1036-1042. https://doi.org/10.1016/j.proeng.2015.08.228
  32. Zhang, J., Wang, J. and Han, Y. (2015), "Simulation of moisture field of concrete with pre-soaked lightweight aggregate addition", Constr. Build. Mater., 96, 599-614. https://doi.org/10.1016/j.conbuildmat.2015.08.058

Cited by

  1. Engineering Properties of Self-Consolidating Lightweight Aggregate Concrete and Its Application in Prestressed Concrete Members vol.10, pp.1, 2018, https://doi.org/10.3390/su10010142
  2. Feasibility Study on Manufacturing Lightweight Aggregates from Water Purification Sludge vol.307, pp.1757-899X, 2018, https://doi.org/10.1088/1757-899X/307/1/012019
  3. Performance of self-curing concrete as affected by different curing regimes vol.9, pp.1, 2017, https://doi.org/10.12989/acc.2020.9.1.033
  4. Effect of Re-vibration on Strength Properties of Lightweight Concrete vol.9, pp.1, 2017, https://doi.org/10.1520/acem20190228
  5. Structural lightweight concrete containing expanded poly-styrene beads; Engineering properties vol.34, pp.4, 2020, https://doi.org/10.12989/scs.2020.34.4.581
  6. Mechanical Properties of Chopped Basalt Fiber-Reinforced Lightweight Aggregate Concrete and Chopped Polyacrylonitrile Fiber Reinforced Lightweight Aggregate Concrete vol.13, pp.7, 2017, https://doi.org/10.3390/ma13071715
  7. Durability Characteristics of Concrete Mixture Based on Red Ceramic Waste Aggregate vol.12, pp.21, 2017, https://doi.org/10.3390/su12218890
  8. Effects of fiber types and volume fraction on strength of lightweight concrete containing expanded clay vol.12, pp.1, 2017, https://doi.org/10.12989/acc.2021.12.1.047
  9. A Parametric Study to Assess Lightweight Aggregate Concrete for Future Sustainable Construction of Reinforced Concrete Beams vol.13, pp.24, 2021, https://doi.org/10.3390/su132413893