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Evaluation of engineering, economic and environmental suitability of waste filler incorporated asphalt mixes and pavements
Road Materials and Pavement Design ( IF 3.7 ) Pub Date : 2021-03-31 , DOI: 10.1080/14680629.2021.1905698
Jayvant Choudhary 1 , Brind Kumar 1 , Ankit Gupta 1
Affiliation  

This study investigated the engineering, economic, and environmental feasibility of asphalt mixes containing brick dust (BD), recycled concrete aggregate dust (CD), limestone slurry dust (LD), rice straw ash (RSA), glass powder (GP), carbide lime (CL), and copper tailing (CT). The performance of asphalt mixes containing various wastes was evaluated against rutting, cracking and moisture sensitivity, and their comparison was made with the conventional mix containing stone dust (SD) filler. Subsequently, the asphalt pavements utilizing the aforesaid mixes as surface course were designed and their material cost and global warming potential (GWP) were analysed. In general, the waste fillers form superior performing mixes at relatively lower cost than conventional SD fillers. The LD and RSA emerged as the best and worst performing filler, respectively. The construction of single km of asphalt pavement made with LD-incorporated mixes found to have 11% lower cost, 11% lower GWP, and 75 ton less aggregates.



中文翻译:

评估掺有废料的沥青混合料和人行道在工程,经济和环境方面的适用性

这项研究调查了含砖尘(BD),再生混凝土骨料粉尘(CD),石灰石浆粉尘(LD),稻草灰(RSA),玻璃粉(GP),碳化物的沥青混合料的工程,经济和环境可行性石灰(CL)和铜尾矿(CT)。评价了含有各种废物的沥青混合料的抗车辙,抗裂性和湿气敏感性,并与含有石粉(SD)填料的常规混合料进行了比较。随后,设计了以上述混合料为表面层的沥青路面,并分析了其材料成本和全球变暖潜势(GWP)。通常,与传统的SD填料相比,废填料能以相对较低的成本形成性能优越的混合物。LD和RSA分别成为性能最好和最差的填充物。

更新日期:2021-05-05
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