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孟文清¹ , 冀    昊 ¹ , 劉金堂² ,  王     鵬 ¹ , 張亞鵬¹ , 崔邯龍¹

( 1. 河北工程大學土木工程學院 ，河北 邯鄲 056038 ;  2. 河鋼集團邯鄲鋼鐵有限責任公司 ，河北 邯鄲 056015 )

摘   要： 為解決煤矸石等工業固廢在公路中應用存在的問題 ，本文以煤矸石為主要研究對象，添加一定量的石灰和鋼渣，制備石灰－鋼渣－煤矸石混合料。采用均勻設計方法，設計 6 組煤矸石混合料配合比 ，測試各組混合料的 7 d 無側限抗壓強度 、180 d 抗壓回彈模量和劈裂強度 。利用回歸分析的方法 ，分別得出煤矸石混合料 各摻量與三項力學性能間的回歸方程，并分析混合料各摻量對三項力學性能的影響 。結果表明： 該混合料力學性能良好，可應用于不同等級公路的路面基層。

關鍵詞： 煤矸石混合料； 力學性能； 均勻設計； 回歸分析； 路面基層

中圖分類號： TU521      

文獻標志碼： A      

文章編號： 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 項 目： 河 北 省  自 然 科 學 基 金   ( E2020402079 , E2022402103) 。

作者簡介： 孟文清  (1966—) , 男 ，教授 、碩士研究生導師， 主要從事土木工程材料與施工管理方面的教學與科研工作。

收稿日期： 2023-09-14