Open Access

ARTICLE

Experimental Research of Concrete with Steel Slag Powder and Zeolite Powder

by Yang Ming, Ping Chen, Yuanhao Wang, Ling Li, Xuandong Chen, Pengliang Sun

1 Guangxi Key Laboratory of New Energy and Building Energy Saving, Guilin, 541004, China
2 College of Civil and Architecture Engineering, Guilin University of Technology, Guilin, 541004, China
3 Guangxi Beibu Gulf Engineering Research Center for Green Marine Materials, Guilin, 541004, China
4 School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China

* Corresponding Authors: Ping Chen. Email: ; Yuanhao Wang. Email:

Journal of Renewable Materials 2020, 8(12), 1647-1655. https://doi.org/10.32604/jrm.2020.011929

Received 05 June 2020; Accepted 10 August 2020; Issue published 12 November 2020

Abstract

In order to increase use ratio of steel slag solid waste, the concrete containing steel slag powder and zeolite powder as admixtures was prepared by using the orthogonal test method. The effects of water-binder ratio, sand ratio, steel slag powder content and zeolite powder on working properties, mechanical strength and chloride ion permeability of the concrete was studied. It was found that the early strength of the concrete had a decrease with the mixing of steel slag and zeolite powders, but its later strength approached to pure concrete. Moreover, the physical filling and pozzolanic activity of the admixtures increased the density of the concrete, resulting in the improvement of the durability of the concrete by the migration speed of Cl⁻ reducing. The optimum mix ratio of C40 steel slag powder-zeolite powder concrete is obtained, and which had the slump of 220 mm, the 3 d, 7 d and 28 d compressive strengths of 27.8 MPa, 37.5 MPa and 48.4 MPa, the 6 h electric flux of 950 C and the diffusion coefficient of 1.65 × 10⁻¹² m² /s.

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