水泥钢渣稳定土的路用性能研究与工程应用

硅酸盐通报 ›› 2024, Vol. 43 ›› Issue (4): 1472-1481.

水泥钢渣稳定土的路用性能研究与工程应用

王本仁¹, 张刘阳², 刘西峰¹, 段旭林¹, 陈潇^2,3

1.山西建龙实业有限公司,运城 044107;
2.武汉理工大学材料科学与工程学院,武汉 430070;
3.武汉理工大学硅酸盐建筑材料国家重点实验室,武汉 430070

收稿日期:2023-10-19 修订日期:2023-12-19 出版日期:2024-04-15 发布日期:2024-04-17
通信作者: 陈潇,博士,副研究员。E-mail:chenxiao1981@whut.edu.cn
作者简介:王本仁(1965—),男,工程师。主要从事工业固体废物综合利用研究。E-mail:947891078@qq.com
基金资助:
运城市科技计划揭榜招标项目(SXJL202273);山西省重点研发项目(202202090301019)

Study on Road Performance and Engineering Application of Cement Steel Slag Stabilized Soil

WANG Benren¹, ZHANG Liuyang², LIU Xifeng¹, DUAN Xulin¹, CHEN Xiao^2,3

1. Shanxi Jianlong Industrial Co., Ltd., Yuncheng 044107, China;
2. School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China;
3. State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China

Received:2023-10-19 Revised:2023-12-19 Online:2024-04-15 Published:2024-04-17

摘要/Abstract

摘要： 在道路材料中应用钢渣是钢渣规模化消纳的重要途径之一,水泥钢渣稳定土是一类新型路面基层材料。本文针对水泥剂量、钢渣掺量对水泥钢渣稳定土抗压强度以及劈裂强度的影响进行了研究,同时还探讨了钢渣掺量对水泥钢渣稳定土干缩性能的影响。结果表明:随着钢渣掺量的增加,水泥钢渣稳定土的无侧限抗压强度和劈裂强度逐渐提高,折压比先增加后降低,干缩系数逐渐降低;随着水泥剂量的提高,水泥钢渣稳定土的28、90 d无侧限抗压强度和劈裂强度逐渐提高,水泥剂量提高至5%(质量分数)时,折压比出现一定幅度的降低。采用配合比(质量分数)水泥外掺5%,钢渣掺量60%,土掺量40%进行工程应用研究,试验段经过现场检测,工程应用效果良好,具有较好的经济效益。

关键词: 道路材料, 钢渣, 土, 力学性能, 干缩性能, 工程应用

Abstract: The application of steel slag in road materials is one of the important ways for the large-scale consumption of steel slag. Cement steel slag stabilized soil is a new type of pavement base material. In this paper, the effects of cement dosage and steel slag content on the unconfined compressive strength and splitting strength of cement steel slag stabilized soil were studied. At the same time, the effect of steel slag content on the drying shrinkage performance of cement steel slag stabilized soil was also discussed. The results show that with the increase of steel slag content, the unconfined compressive strength and splitting strength of cement steel slag stabilized soil gradually increase, the flexural-compressive strength ratio increases first and then decreases, and the drying shrinkage coefficient gradually decreases. With the increase of cement dosage, the 28 and 90 d unconfined compressive strength and splitting strength of cement steel slag stabilized soil gradually increase. When the cement dosage increases to 5% (mass fraction), the flexural-compressive strength ratio decreases to a certain extent. The engineering application research is carried out by using the mixture ratio (mass fraction) of 5% cement (extra-mixing), 60% of steel slag, and 40% of soil. The test section has been tested on site, and the engineering application effect is good and the economic benefit is good.

Key words: road material, steel slag, soil, mechanical property, drying shrinkage performance, engineering application

中图分类号:

U416

王本仁, 张刘阳, 刘西峰, 段旭林, 陈潇. 水泥钢渣稳定土的路用性能研究与工程应用[J]. 硅酸盐通报, 2024, 43(4): 1472-1481.

WANG Benren, ZHANG Liuyang, LIU Xifeng, DUAN Xulin, CHEN Xiao. Study on Road Performance and Engineering Application of Cement Steel Slag Stabilized Soil[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2024, 43(4): 1472-1481.

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