Chai Teck Jung, Tang Hing Kwong, Koh Heng Boon


Abstract: This paper presents some experimental results and discusses the used of recycled foamed aggregates as natural coarse aggregates replacement in producing concrete. The physical properties of recycled foamed aggregates concrete were investigated. The properties studied are water absorption and drying shrinkage from the concrete early ages until the periods of 56 days. The 100 mm x 100 mm cube specimen was used to study the water absorption at the age of 7, 28 and 56 days. Meanwhile, the 100 mm x 100 mm x 300 mm length prism had been casted and used for drying shrinkage test for recycled foamed aggregates concrete. The foamed aggregates was produced from crushing recycled foamed concrete blocks. It were coated with cement paste to reduce its water absorption ability during casting process. Superplasticizer was used to maintain the workability of fresh concrete with a slump vary between 50 mm to 100 mm. The physical tests were conducted on recycled foamed aggregates to determine their initial properties such as loose bulk density, sieve analysis and water absorption rate. Recycled foamed aggregate concretes were produced with varied water cement ratio. The results obtained indicated that the linear elastic relationship between water cement ratio and water absorption rate. The higher the water cement ratio of concrete specimen will obtained higher water absorption rate. Vice versa, the density is low for drying shrinkage. The water absorption decreased while drying shrinkage becomes more stabilized over curing period.


Recycled foamed aggregate concrete, slump, water absorption, drying shrinkage, density.

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American Concrete Institute (2003). ACI 213R-03.Guide for Structural Lightweight-Aggregate Concrete. U.S.

Andreu, G. C. & Miren, E. (2016). Effects of Using Recycled Concrete Aggregates on the Shrinkage of High Performance Concrete. Construction and Building Materials. 115, 32 - 41.

British Standard Institution (2000). BS EN 206-1: Part 1: Concrete-Specification, Performance, Production and Conformity. UK.

Chandra, S. & Berntsson, L. (2002). Historical Background of Lightweight Aggregate Concrete. Lightweight Aggregate Concrete. Norwich: Noyes Publications.

Erik, B. & Hansen, T. C. (1985). Elasticity and Drying Shrinkage of Recycled-Aggregate Concrete. ACI Journal. 85(56), 648 - 652.

Lee, Y. L., Karim, A. T. A., Rahman, I. A., Koh, H. B., Adnan, S. H., Nagapan, S. and Reza, F. V. (2013). Alternative Aggregates for Sustainable Construction. International Journal of Zero Waste Generation. 1(1), 1-6.

McNeil, K. and Kang, T. H. K.(2013). Recycled Concrete Aggregates: A Review. International Journal of Concrete Structures and Materials. 7(1), 61–69.

Mohammed, J. H. & Hamad, A. J. (2014). A Classification of Lightweight Concrete Materials, Properties and Application Review. International Journal of Advanced Engineering Applications. 7(1), 52 - 57.

Neville, A. M. & Brooks, J. J. (2010). Concrete Technology. 2nd Edition. England: Pearson Education Limited.

DOI: https://doi.org/10.11113/mjce.v30n3.522


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