电石渣稳定土抗压强度影响因素及预估模型研究

doi:10.11896/cldb.20080213

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Abstract Carbide slag, an industrial waste, can be used to prepare carbide slag stabilized soil (CS). In this paper, the effects of compactness, curing time and calcium carbide slag content on the unconfined compressive strength of CS specimens were analyzed with the carbide slag solidified silty clay as the research object. A prediction model of unconfined compressive strength (R_c) of CS specimens was established considering curing time (T), porosity (n) and volume ratio of carbide slag (C_iv). The results show that the unconfined compressive strength of CS specimen rises linearly with the increase of compactness and logarithmically with the extension of curing time, while the increase of carbide slag content has a significant improvement on the unconfined compressive strength of CS specimen. In addition, the verification analysis found that the model can better predict the compressive strength of CS specimens. The absolute error between the estimated strength and the measured strength is within 0.25 MPa, and the relative error does not exceed 20%.

Key words： calcium carbide slag unconfined compressive strength sensitivity curing time strength prediction model

Published: 25 November 2021 Online: 2021-12-13

CLC number:

TU411

Fund:National Natural Science Foundation of China (51878061).

About author: Peilong Lireceived his PhD.degree in June 2009 from Chang'an University in engineering. He is currently a professor in Chang'an University and mainly engages in the research of pavement materials structure and performance. His researches focus on the development of high-performance and eco-friendly pavement materials, micro-mechanical behavior and mechanism of asphalt mixtures, modified mechanism and dynamics characte-ristics of asphalt, and new maintenance materials and technologies in highway.

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	LI Peilong
	PEI Yi
	HU Jinchun
	HU Wei

Cite this article:

LI Peilong,PEI Yi,HU Jinchun, et al. Research on Influencing Factors and Prediction Model of Compressive Strength of Carbide Slag Stabilized Soil[J]. Materials Reports, 2021, 35(22): 22092-22097.

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http://www.mater-rep.com/EN/10.11896/cldb.20080213 OR http://www.mater-rep.com/EN/Y2021/V35/I22/22092

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