水泥硅灰稳定未陈化钢渣-碎石基层材料试验研究  

Experimental Study on Cement Silica Fume Stabilized Unaged Steel Slag-Crushed Stone Base Material

作　　者：叶洪东[1] 杨衡 朱立华[1] 巩英娇 YE Hongdong;YANG Heng;ZHU Lihua;GONG Yingjiao(School of Civil Engineering,Hebei University of Engineering,Handan,Hebei 056038,China)

机构地区：[1]河北工程大学土木工程学院,河北邯郸056038

出　　处：《河北工程大学学报(自然科学版)》2024年第6期34-39,共6页Journal of Hebei University of Engineering:Natural Science Edition

基　　金：河北省自然科学基金资助项目(E2021402074)。

摘　　要：为研究水泥硅灰稳定未陈化钢渣-碎石材料用于基层铺筑的可行性,采用硅灰控制钢渣的体积膨胀性,试验得出抑制钢渣膨胀率最小硅灰掺量为2%,并以此为前提采用正交试验设计方法探讨了水泥硅灰稳定未陈化钢渣-碎石基层材料力学性能和抗冻性能,试验结果表明:水泥硅灰稳定未陈化钢渣-碎石基层材料的7 d无侧限抗压强度和劈裂强度主要影响因素为水泥掺量,28 d无侧限抗压强度、抗压回弹模量与抗冻性能的主要影响因素为钢渣掺量。To study the feasibility of applying cement-silica fume-stabilized un-aged steel slag-crushed stone materials for base layer paving,the volume expansibility of steel slag was treated with silica fume.The experimental results showed that the minimum silica fume content for suppressing the expansion rate of steel slag was 2%.Based on this premise,the orthogonal test design method was adopted to explore the mechanical properties and frost resistance of cement-silica fume-stabilized un-aged steel slag-crushed stone base layer materials.The test results indicated that the main influencing factors on the 7-day unconfined compressive strength and splitting strength of the cement-silica fume-stabilized un-aged steel slag-crushed stone base layer materials were the cement content,while the main influencing factors on the 28-day unconfined compressive strength,compressive resilient modulus,and frost resistance were the steel slag content.

关 键 词：硅灰 未陈化钢渣 正交试验设计 力学性能 抗冻性能 

分 类 号：U414[交通运输工程—道路与铁道工程]