Experimental investigation on the effects of a new anti-stripping additive on performance properties of asphalt and its mixtures

IF 7.4 1区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY Construction and Building Materials Pub Date : 2022-10-24 DOI:10.1016/j.conbuildmat.2022.129173

Yong Peng , Zhihao Yu , Yuhang Long , Yanwei Li

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引用次数: 1

Abstract

This study aims to investigate the effects of a new compound anti-stripping additive called DMA-NSDD, which comprised dopamine methacrylamide (DMA) that is a marine biomimetic material and nano-silicon dioxide dispersion (NSDD), on the performance properties of asphalt and its mixtures by experiments. The main steps of DMA synthesis were described. The test methods used in this study for asphalt and asphalt mixture performance were also introduced. The performance properties of asphalt with DMA-NSDD and its mixtures were investigated by comparing with those of virgin asphalt, styrene–butadienestyrene (SBS) modified asphalt, anti-stripping asphalts DMA, NSDD, LYKB™, and GLWS™, and their mixtures. Results showed that the marine biomimetic material DMA could be used in asphalt and its mixtures to increase their performance properties. Compared with SBS, DMA, NSDD, LYKB™, and GLWS™, the asphalt–aggregate adhesion and water stability of the asphalt mixtures with DMA-NSDD were the best and enhanced most significantly. The high- and low-temperature performance of the asphalt mixtures with DMA-NSDD was also notably improved, although it was second only to that of the SBS-modified asphalt mixtures. Overall, with DMA-NSDD, the performance properties of asphalt mixtures with granite aggregates improved more than those of asphalt mixtures with limestone aggregates.

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一种新型抗剥离添加剂对沥青及其混合料性能影响的试验研究

本研究旨在通过实验研究由海洋仿生材料多巴胺甲基丙烯酰胺(DMA)和纳米二氧化硅分散体(NSDD)组成的新型复合抗剥离添加剂DMA-NSDD对沥青及其混合料性能的影响。介绍了DMA合成的主要步骤。介绍了本研究中沥青和沥青混合料性能的测试方法。通过与原始沥青、SBS改性沥青、抗剥蚀沥青DMA、NSDD、LYKB™和GLWS™及其混合料的性能比较，研究了DMA-NSDD沥青及其混合料的性能。结果表明，海洋仿生材料DMA可用于沥青及其混合料中，提高沥青及其混合料的性能。与SBS、DMA、NSDD、LYKB™和GLWS™相比，添加DMA-NSDD的沥青混合料的沥青-骨料附着力和水稳定性最好，且增强最显著。添加DMA-NSDD的沥青混合料的高低温性能也得到了显著改善，但仅次于sbs改性沥青混合料。总体而言，添加DMA-NSDD后，花岗岩骨料沥青混合料的性能比石灰石骨料沥青混合料的性能得到了更大的改善。

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来源期刊

Construction and Building Materials 工程技术-材料科学：综合

CiteScore

13.80

自引率

21.60%

发文量

3632

审稿时长

82 days

期刊介绍： Construction and Building Materials offers an international platform for sharing innovative and original research and development in the realm of construction and building materials, along with their practical applications in new projects and repair practices. The journal publishes a diverse array of pioneering research and application papers, detailing laboratory investigations and, to a limited extent, numerical analyses or reports on full-scale projects. Multi-part papers are discouraged. Additionally, Construction and Building Materials features comprehensive case studies and insightful review articles that contribute to new insights in the field. Our focus is on papers related to construction materials, excluding those on structural engineering, geotechnics, and unbound highway layers. Covered materials and technologies encompass cement, concrete reinforcement, bricks and mortars, additives, corrosion technology, ceramics, timber, steel, polymers, glass fibers, recycled materials, bamboo, rammed earth, non-conventional building materials, bituminous materials, and applications in railway materials.