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Effect of Stone Powder Content on Mechanical Properties of Manufactured Sand Concrete

Effect of Stone Powder Content on Mechanical Properties of Manufactured Sand Concrete To study the effect of stone powder content on the basic mechanical properties of mechanism sand concrete, the effect of stone powder content of 0%, 3%, 5%, 7%, 9%, 12%, and 15% on the cube compressive strength, axial compressive strength, splitting tensile strength, and modulus of elasticity of mechanism sand concrete was studied with mechanism sand in a region of Guangxi. The modulus of elasticity of the concrete with stone powder was predicted by a three-phase composite model. The results show that with the increase of stone powder content, the slump and expansion of mechanism sand concrete show the change law of increasing first and then decreasing. When the stone powder content reaches 9%, the slump and expansibility of the concrete with mechanical sand reach the maximum. With the increase of stone powder content, the compressive strength and splitting tensile strength of mechanism sand concrete show the change law of increasing first and then decreasing. The 7d and 28d compressive strengths and splitting tensile strengths of the concrete reached their maximum values when the stone powder content was 12%. The effective modulus of elasticity of the concrete was calculated by using Voigt upper and Reuss lower limits, generalized self-consistency method and Mori–Tanaka method, and the effective modulus of elasticity calculated by the code and the above three methods were compared with the measured modulus of elasticity. This paper recommends a method for calculating the modulus of elasticity applicable to machine-made sand concrete (or containing stone dust) and verifies its reliability. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png "Iranian Journal of Science and Technology, Transactions of Civil Engineering" Springer Journals

Effect of Stone Powder Content on Mechanical Properties of Manufactured Sand Concrete

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References (32)

Publisher
Springer Journals
Copyright
Copyright © The Author(s), under exclusive licence to Shiraz University 2022
ISSN
2228-6160
eISSN
2364-1843
DOI
10.1007/s40996-022-00882-1
Publisher site
See Article on Publisher Site

Abstract

To study the effect of stone powder content on the basic mechanical properties of mechanism sand concrete, the effect of stone powder content of 0%, 3%, 5%, 7%, 9%, 12%, and 15% on the cube compressive strength, axial compressive strength, splitting tensile strength, and modulus of elasticity of mechanism sand concrete was studied with mechanism sand in a region of Guangxi. The modulus of elasticity of the concrete with stone powder was predicted by a three-phase composite model. The results show that with the increase of stone powder content, the slump and expansion of mechanism sand concrete show the change law of increasing first and then decreasing. When the stone powder content reaches 9%, the slump and expansibility of the concrete with mechanical sand reach the maximum. With the increase of stone powder content, the compressive strength and splitting tensile strength of mechanism sand concrete show the change law of increasing first and then decreasing. The 7d and 28d compressive strengths and splitting tensile strengths of the concrete reached their maximum values when the stone powder content was 12%. The effective modulus of elasticity of the concrete was calculated by using Voigt upper and Reuss lower limits, generalized self-consistency method and Mori–Tanaka method, and the effective modulus of elasticity calculated by the code and the above three methods were compared with the measured modulus of elasticity. This paper recommends a method for calculating the modulus of elasticity applicable to machine-made sand concrete (or containing stone dust) and verifies its reliability.

Journal

"Iranian Journal of Science and Technology, Transactions of Civil Engineering"Springer Journals

Published: Dec 1, 2022

Keywords: Manufactured sand concrete; Stone powder; Mechanical properties; Homogenization theory

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