多碎石聚氨酯混凝土路用性能与力学特性研究

硅酸盐通报 ›› 2024, Vol. 43 ›› Issue (2): 746-756.

所属专题：道路材料

多碎石聚氨酯混凝土路用性能与力学特性研究

孙敏¹, 侯德瑞¹, 耿立涛¹, 颜卓然², 毕玉峰³, 黄照亮¹, 任帅宇¹, 王本毅¹

1.山东建筑大学交通工程学院,济南 250101;
2.山东省交通规划设计院集团有限公司,济南 250101;
3.山东高速集团有限公司创新研究院,济南 250031

收稿日期:2023-09-14 修订日期:2023-11-06 出版日期:2024-02-15 发布日期:2024-02-05
通信作者: 毕玉峰,博士。E-mail:18866130036@163.com
作者简介:孙敏(1985—),女,博士,讲师。主要从事聚氨酯材料在道路工程中应用的研究。E-mail:15253170143@163.com
基金资助:
山东省自然科学基金(ZR2022QE054);山东高速集团创新科技项目(HSB 2021-72)

Road Performances and Mechanical Properties of Multi-Gravel Polyurethane Concrete

SUN Min¹, HOU Derui¹, GENG Litao¹, YAN Zhuoran², BI Yufeng³, HUANG Zhaoliang¹, REN Shuaiyu¹, WANG Benyi¹

1. School of Traffic Engineering, Shandong Jianzhu University, Jinan 250101, China;
2. Shandong Provincial Transportation Planning and Design Institute Group Co., Ltd., Jinan 250101, China;
3. Shandong Hi-Speed Group Co., Ltd., Innovation Research Institute, Jinan 250031, China

Received:2023-09-14 Revised:2023-11-06 Online:2024-02-15 Published:2024-02-05

摘要/Abstract

摘要： 为探讨骨架密实结构聚氨酯混合料的路用性能与力学特性,采用多碎石沥青混凝土的设计理论进行聚氨酯混凝土的组成设计,开展多种性能试验来评价多碎石聚氨酯混凝土路用性能,基于单轴贯入试验及开发的单轴压缩试验和单轴拉伸试验评价多碎石聚氨酯混凝土的力学特性。结果表明:多碎石聚氨酯混凝土的动稳定度分别是基质沥青混合料和沥青玛蹄脂碎石混合料的53.4倍和17.8倍,低温最大弯拉应变分别为2.26倍和1.95倍,疲劳寿命分别为26.0倍和12.7倍;力学特性方面,温度对多碎石聚氨酯混凝土的单轴贯入强度和贯入量影响较小,多碎石聚氨酯混凝土的抗压和抗拉弹性模量远小于水泥混凝土,但大于沥青玛蹄脂碎石混凝土。多碎石聚氨酯混凝土路用性能优异,温度对多碎石聚氨酯混凝土抗剪力学特性影响较小,多单轴拉伸和压缩力学特性介于沥青混合料和水泥混凝土之间,可应用于路面结构铺装中。

关键词: 路面工程, 多碎石, 聚氨酯混凝土, 路用性能, 力学特性

Abstract: To investigate the road performance and mechanical properties of polyurethane mixture with dense skeleton structure, the design theory of multi-gravel asphalt concrete was used to design the composition of polyurethane concrete. A variety of performance tests were carried out to evaluate the road performance of multi-gravel polyurethane concrete, and the mechanical properties were evaluated based on uniaxial penetration test, uniaxial compressive test and uniaxial tensile test. The results show that the dynamic stability of multi-gravel polyurethane concrete is 53.4 times and 17.8 times that of matrix asphalt mixture and asphalt mastic gravel mixture. The maximum bending strain at low temperature is 2.26 times and 1.95 times respectively, and the fatigue life is 26.0 times and 12.7 times, respectively. In terms of mechanical properties, temperature has little effect on the uniaxial penetration strength and penetration amount of multi-gravel polyurethane concrete. The compressive and tensile elastic modulus of multi-gravel polyurethane concrete are much smaller than that of cement concrete, but larger than that of asphalt mastic gravel concrete. Multi-gravel polyurethane concrete has excellent road performance. Temperature has little effect on the shear mechanical properties of multi-gravel polyurethane concrete. The multi-uniaxial tensile and compressive mechanical properties are between asphalt mixture and cement concrete, which can be applied to pavement structure paving.

Key words: pavement engineering, multi-gravel, polyurethane concrete, road performance, mechanical property

中图分类号:

U414

孙敏, 侯德瑞, 耿立涛, 颜卓然, 毕玉峰, 黄照亮, 任帅宇, 王本毅. 多碎石聚氨酯混凝土路用性能与力学特性研究[J]. 硅酸盐通报, 2024, 43(2): 746-756.

SUN Min, HOU Derui, GENG Litao, YAN Zhuoran, BI Yufeng, HUANG Zhaoliang, REN Shuaiyu, WANG Benyi. Road Performances and Mechanical Properties of Multi-Gravel Polyurethane Concrete[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2024, 43(2): 746-756.

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多碎石聚氨酯混凝土路用性能与力学特性研究

Road Performances and Mechanical Properties of Multi-Gravel Polyurethane Concrete

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