Open Access

ARTICLE

Analysis of the Performances and Optimization of Polyurethane Concrete with a Large Percentage of Fly Ash

Tingting Huo¹, Jiaquan Xue^2,*, Zhi’an Fu³
1 Wuchang University of Technology, Wuhan, 430223, China
2 China Metallurgical Construction Engineering Group Co., Ltd., Chongqing, 400080, China
3 China Construction Fourth Engineering Division Corp., Ltd., Guangzhou, 510665, China
* Corresponding Author: Jiaquan Xue. Email:
(This article belongs to this Special Issue: Advanced Materials, Processing and Testing Technology)

Fluid Dynamics & Materials Processing 2023, 19(2), 437-450. https://doi.org/10.32604/fdmp.2022.020696

Received 07 December 2021; Accepted 06 May 2022; Issue published 29 August 2022

Abstract

The properties of polyurethane concrete containing a large amount of fly ash are investigated, and accordingly, a model is introduced to account for the influence of fly ash fineness, water ratio, and loss of ignition (LOI) on its mechanical performances. This research shows that, after optimization, the concrete has a compressive strength of 20.8 MPa, a flexural strength of 3.4 MPa, and a compressive modulus of elasticity of 19.2 GPa. The main factor influencing 28 and 90 d compressive strength is fly ash content, water-binder ratio, and early strength agent content.

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Keywords

Water-containing unsaturated polyurethane concrete; fly ash; ratio test; strength test; water content test; mechanical properties

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