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林   通¹ ,  霍志强² ,  杨征勋^1 ,2 ,3 ,  文安飞² ,  努尔麦麦提 · 阿 卜力米提² ,

张   政² ,  吴绍龙¹

 

( 1. 新疆农业大学 交通与物流工程学院 , 乌鲁木齐   830052 ;  2.  四川交通职业技术学院 ,  成都    611130 ;

3.  四川省交通运输绿色低碳建筑材料工程技术研究中心 ,  成都   611130)

摘  要 :  为提高建筑垃圾在工程领域资源化利用率 , 探究建筑垃圾在道路中应用的可行性 。以不同集料类型 , 水泥掺量作为试验变量 , 研究不同集料类型对水泥稳定碎石无侧限抗压强度 , 劈裂强度 , 冻融性能的影响 ,并分析集料类型对强度的影响顺序 。考虑到由于天然集料的密度大于再生集料 , 在替换过程中引起最大干密度的提高 ,  间接地影响水泥添加量增大 , 将水泥等效转换 , 分析集料类型对强度的影响顺序 。在 3% 水泥掺量下 ,全再生 、半再生 7 d 无侧限抗压强度均可达到 3 MPa 以上 , 28 d 劈裂强度达到 0. 3 MPa 以上 ,  抗冻性指标达到60%以上 , 可满足二级及二级以下公路重交通的标准 。根据水泥平衡调整后的结果 , 集料的影响程度顺序为砂≥碎石+米石>米石>碎石 。研究成果可为建筑垃圾水泥稳定基层的设计提供参考。

关键词 : 水泥稳定碎石 ; 建筑垃圾 ; 压碎值 ; 击实 ; 无侧限抗压强度 ; 劈裂 ; 冻融

中图分类号 : U416           文献标志码 : A           文章编号 :  1005- 8249  (2026)  03-0084-06

DOI :10. 19860/j. cnki. issn1005- 8249. 2026. 03. 014

 

LIN Tong¹ , HUO Zhiqiang² , YANG Zhengxun^1 ,2 ,3 , WEN Anfei² , NURMEMET ·Abdulmetti² ,

ZHANG Zheng² , WU Shaolong¹

( 1. School of Transportation and Logistics Engineering , Xinjiang Agricultural University , Urumqi 830052 , China;

2. Sichuan Vocational and Technical College of Communications , Chengdu 611130 , China;

3. Sichuan Provincial Transportation Green and Low Carbon Building Materials Engineering Technology Research Center , Chengdu 611130 , China)

Abstract :  To  enhance  the  resource  utilization  rate  of  construction waste  in  engineering fields ,  the  feasibility  of applying construction waste  in  road  construction is explored.    Different  aggregate types and cement dosage are taken as experimental variables to study the influence of different aggregate types on the unconfined compressive strength , splitting strength and freeze- thaw performance  of  cement - stabilized  crushed stone.    The  influence sequence  of aggregate types on strength is analyzed. Considering that the density of natural aggregates is greater than that of recycled aggregates , the maximum dry density increases  during the replacement process , which indirectly leads to an increase in the amount of cement added.   The cement is equivalently converted to analyze the influence sequence of aggregate types on strength.   Under  a 3%  cement dosage , the 7-day unconfined compressive strength of fully recycled and semi-recycled materials can both reach above 3 MPa , the 28-day splitting strength can reach above 0. 3 MPa , and the freeze-thaw resistance index can reach above 60% , which can meet the standards for heavy traffic on  secondary  and lower - grade roads.    According  to  the results of cement balance adjustment , the influence degree sequence of aggregates is sand  ≥ crushed stone + gravel > gravel > crushed stone.   The research results can provide a reference for the design of cement-stabilized base layers made from construction waste.

Key words :  ement stabilized crushed stone ; construction waste ; crushing value ; compaction; unconfined compressive strength; splitting; freeze thaw