Study the effect of foundry sand and rice hull ash on the mechanical and microstructural properties of concrete

Volume 3, Issue 2, April 2018     |     PP. 12-33      |     PDF (1405 K)    |     Pub. Date: August 8, 2018
DOI:    421 Downloads     7472 Views  

Author(s)

Ali Seyedkazemi, Lecturer, Department of Civil Engineering, Ayatollah Amoli Branch, Islamic Azad University, Amol, Iran
Meysam Mirzaeipour, M.Sc. Student, Department of Civil Engineering, Ayatollah Amoli Branch, Islamic Azad University, Amol, Iran
Saman Eftekhar Ardabili, M.Sc. Student, Department of Civil Engineering, Ahar Branch, Islamic Azad University, Amol, Iran

Abstract
Waste foundry sand, often piled in a large amount in the enclosures of the foundries, is the by-product of metal casting industry. Rice hull which is often burned after it is removed from rice is also a by-product of the agriculture industry. Disposing of these wastes leads to the environmental pollution. To optimal use of these wastes and avoid the adverse effects of dumping them, regular sand has been partially replaced with the waste foundry sand and rice hull ash pozzolana has been also used as a partial replacement for cement in making concrete. XRF and XRD experiments were conducted to study the chemical structure of waste foundry sand and rice hull ash. To assess the strength properties, compressive strength, tensile strength (Brazilian), flexural strength, modulus of elasticity and water absorption tests have been conducted. SEM test was carried out on concrete samples to determine the micro-structural characteristics. The results showed a slight decrease in compressive strength of samples in which regular sand was replaced with waste foundry sand by 15 percent; however, adding the rice hull ash to this mixture led to make a concrete comparable with control one.

Keywords
recycled materials concrete, waste foundry sand, rice hull ash, strength properties

Cite this paper
Ali Seyedkazemi, Meysam Mirzaeipour, Saman Eftekhar Ardabili, Study the effect of foundry sand and rice hull ash on the mechanical and microstructural properties of concrete , SCIREA Journal of Civil Engineering and Building Construction . Volume 3, Issue 2, April 2018 | PP. 12-33.

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