Incorporation of disposed oil-contaminated soil in cement-based materials

被引：12

作者：

Li, Yirui ^{[1
]}

Zeng, Xiaohui ^{[1
]}

Zhou, Junliang ^{[1
,2
]}

Liu, Haichuan ^{[3
]}

Gu, Yinghan ^{[4
]}

Pan, Zili ^{[4
]}

Zeng, Yongping ^{[4
]}

Zeng, Yingjie ^{[1
]}

机构：

[1] Cent South Univ, Sch Civil Engn, 68 South Shaoshan Rd, Changsha 410075, Hunan, Peoples R China

[2] Univ Technol Sydney, Ctr Green Technol, Sch Civil & Environm Engn, Sydney, NSW 2007, Australia

[3] Southwest Jiaotong Univ, Sch Civil Engn, 111 North Sect Erhuan Rd, Chengdu 610031, Peoples R China

[4] China Railway Eryuan Engn Grp Co Ltd, 3 Tongjin Rd, Chengdu 610031, Peoples R China

来源：

RESOURCES CONSERVATION AND RECYCLING | 2020年 / 160卷

关键词：

Oil-contaminated soil; Cement-based materials; Cement hydration; Rheological properties; Mechanical Strength; Oil leaching values; FLY-ASH; LEACHING BEHAVIOR; REMEDIATION; CONCRETE; IMMOBILIZATION; BIODEGRADATION; BIOREMEDIATION; SOLIDIFICATION; HYDRATION; STRENGTH;

D O I：

10.1016/j.resconrec.2020.104838

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

To realize the win-win objective of environmental conservation and waste recycling, oil-contaminated soil was utilized as an additive in cement-based materials. The effect of diesel and engine oil and the corresponding oil-contaminated soil on cement-based materials were studied, including the heat release of cement hydration, rheological and flow properties, flexural and compressive strength, hydration products and oil leaching values. The results showed that oil-contaminated soil increased the heat release of hydration of unit mass cement and reduced rheological and flow properties of cement paste and mortars. However, when the dosage of oil-contaminated soil is about 4%, the optimum values of the flexural and compressive strength of mortar, in standard curing 7 and 28 days, were obtained. The leaching values of oil in the disposition satisfied the requirement of China standards. The results confirmed that utilizing an appropriate dosage of oil-contaminated soil in cement-based materials improved the flexural and compressive strength, which is stable to dispose of the waste. This shows that using disposed oil-contaminated soil in cement-based materials will serve as a cost-effective and environmental solution.

引用

页数：9

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