Basic Mechanical Properties of Concrete with Machine-Made Sand and Recycled Coarse Aggregate

Shun Bo Zhao; Qi Guo; Guang Xin Li; Yan Feng Su

doi:10.4028/www.scientific.net/AMM.357-360.1102

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 357-360Basic Mechanical Properties of Concrete with...

Basic Mechanical Properties of Concrete with Machine-Made Sand and Recycled Coarse Aggregate

Abstract:

Experimental study was carried out on the concrete mixed with machine-made sand and recycled coarse aggregate (MSRAC), three strength grades of concrete were designed by changing the water to cement ratio as 0.36, 0.45 and 0.55, while the sand ratio varied in a range of 32%~38%, 32%~42% and 38%~44% successively. The workability and the mechanical properties such as compressive and splitting tensile strengths and elastic modulus of MSRAC were tested. The results show that although the mechanical properties of MSRAC were influenced by sand ratio, they were still controlled by the water to cement ratio. The ratio of axial compressive strength to cubic compressive strength and the elastic modulus of MSRAC basically satisfy the specifications of the current design code for concrete structures. It should be noticed that the tensile strength of MSRAC is lower than current specification, and tends to reduce with the increase of water to cement ratio.

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Periodical:

Applied Mechanics and Materials (Volumes 357-360)

Pages:

1102-1105

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.357-360.1102

Citation:

Cite this paper

Online since:

August 2013

Authors:

Shun Bo Zhao, Qi Guo, Guang Xin Li, Yan Feng Su

Keywords:

Compressive Strength, Concrete, Elastic Modulus, Machine-Made Sand, Recycled Coarse Aggregate, Tensile Strength, Workability

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