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首页> 外文期刊>Journal of Cleaner Production >Evaluation of permanent deformation of a new pavement base and subbase containing unbound granular materials, crumb rubber and crushed glass
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Evaluation of permanent deformation of a new pavement base and subbase containing unbound granular materials, crumb rubber and crushed glass

机译：评估包含未结合的粒状材料，碎橡胶和碎玻璃的新型路面基层和路基的永久变形

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To avoid premature failures in pavement layers, strong aggregates must be selected for pavement constructions that can bear the accumulation of permanent deformations. Otherwise, rutting happens in the pavement layers due to the accumulation of permanent deformations. On the other hand, due to the extensive generation of construction and demolition (C&D) materials around the world, the application of waste materials in civil engineering projects would be considered as an environmentally friendly and cost-effective solution. Although many studies have been performed to examine the performance of the crushed recycle pavement materials, the literature review shows that few studies have been conducted to examine the permanent deformation characteristic of recycled concrete aggregate (RCA) and crushed rock (CR) containing both crumb rubber (R) and crushed glass (CG). In this study, a series of repeated load triaxial (RLT) tests were carried out to evaluate the permanent deformation (i.e.100000 loading cycles) of RCA and CR incorporating R and CG. The shakedown theory was used to characterize the permanent deformation behaviour of the samples. Also, Werkmeister's criteria were applied to define the shakedown ranges of the samples. The results show that the RCA, RCA +1% R +5% CG, CR +1% R + 3% CG and CR + 1% R + 5% CG can be used as base and sub-base material in pavement. (C) 2019 Elsevier Ltd. All rights reserved.
机译：为避免路面层过早损坏，必须为路面结构选择能承受永久变形累积的强骨料。否则，由于永久变形的积累，路面层会发生车辙。另一方面，由于世界范围内大量使用的建筑和拆除（C＆D）材料，在土木工程项目中使用废料将被视为一种环保且具有成本效益的解决方案。尽管已经进行了许多研究来检查碎石再生路面材料的性能，但文献综述表明，很少有研究来研究再生橡胶骨料（RCA）和碎石（CR）的永久变形特性，其中既包含碎屑橡胶，也包含碎石。 （R）和碎玻璃（CG）。在这项研究中，进行了一系列反复的三轴载荷试验（RLT），以评估结合了R和CG的RCA和CR的永久变形（即100000个载荷循环）。震荡理论用于表征样品的永久变形行为。同样，采用Werkmeister的标准来定义样品的降低范围。结果表明，RCA，RCA + 1％R + 5％CG，CR + 1％R + 3％CG和CR + 1％R + 5％CG可用作路面的基础和次基础材料。 （C）2019 Elsevier Ltd.保留所有权利。

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