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孟文清¹ , 冀    昊 ¹ , 刘金堂² ,  王     鹏 ¹ , 张亚鹏¹ , 崔邯龙¹

( 1. 河北工程大学土木工程学院 ，河北 邯郸 056038 ;  2. 河钢集团邯郸钢铁有限责任公司 ，河北 邯郸 056015 )

摘   要： 为解决煤矸石等工业固废在公路中应用存在的问题 ，本文以煤矸石为主要研究对象，添加一定量的石灰和钢渣，制备石灰－钢渣－煤矸石混合料。采用均匀设计方法，设计 6 组煤矸石混合料配合比 ，测试各组混合料的 7 d 无侧限抗压强度 、180 d 抗压回弹模量和劈裂强度 。利用回归分析的方法 ，分别得出煤矸石混合料 各掺量与三项力学性能间的回归方程，并分析混合料各掺量对三项力学性能的影响 。结果表明： 该混合料力学性能良好，可应用于不同等级公路的路面基层。

关键词： 煤矸石混合料； 力学性能； 均匀设计； 回归分析； 路面基层

中图分类号： TU521      

文献标志码： A      

文章编号： 1005-8249 (2023) 06-0099-06

DOI : 10. 19860/j.cnki.issn1005-8249.2023.06.016

MENG Wenqing¹ , JI Hao¹ , LIU Jintang² , WANG Peng¹ , ZHANG Yapeng¹ , CUI Hanlong¹

( 1. College of Civil Engineering , Hebei University of Engineering , Handan 056038 , China;

2. Handan Iron and Steel Co. ，Ltd. ，Hegang Group , Handan 056015 , China)

Abstract: In order to solve the problems existing in the application of industrial solid waste such as coal gangue in highway, this paper takes coal gangue as the main research object, and adds a certain amount of lime and steel slag to prepare lime-steel slag-coal gangue mixture. The 7d unconfined compressive strength, 180d compressive rebound modulus and splitting strength of six groups of coal gangue mixture were tested by uniform design method. By using the method of regression analysis, it is concluded that coal gangue mixture respectively the content and the regression equation between the mechanical properties of the three, and analysis the mixture content on the mechanical behavior of the three. The results show that the mixture has good mechanical properties and can be applied to the pavement base of different grades of highway.

Keywords: coal gangue mixture; mechanical properties; uniform design; regression analysis; pavement base

∗ 基 金 项 目： 河 北 省  自 然 科 学 基 金   ( E2020402079 , E2022402103) 。

作者简介： 孟文清  (1966—) , 男 ，教授 、硕士研究生导师， 主要从事土木工程材料与施工管理方面的教学与科研工作。

收稿日期： 2023-09-14