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首页> 外文期刊>The international journal of pavement engineering & asphalt technology >EXPERIMENTAL ANALYSIS OF WATERPROOFING POLYMERIC PAVEMENTS FOR CONCRETE BRIDGE DECKS
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EXPERIMENTAL ANALYSIS OF WATERPROOFING POLYMERIC PAVEMENTS FOR CONCRETE BRIDGE DECKS

机译：混凝土桥式桥面防水聚合物路面的试验分析

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摘要

On concrete bridge and viaduct decks, traditional bituminous pavements are often subject to rapid degradation, particularly due to precipitation, traffic loadings and chemical attack. Pavement failure can also be due to underlying cracks related to steel reinforcement corrosion. For this reason waterproofing plays an important role in durability of the structure. Waterproofing can be done by means of polymeric binders and aggregates, mixed or applied together in the surface course. The paper summarizes the main results of a study aimed at mechanically characterizing resin-aggregate mixtures (premixed and multi-layers) for bridge waterproofing and paving: two types of resins and several types of natural and artificial/industrial aggregate (EAF slag, C&D aggregate, limestone and quartz sand) were used. Permanent deformation resistance and adhesion tests were conducted, as well as trials to define the surface characteristics of the product (skid resistance, permeability, macro-texture). The comparison demonstrates that polymeric slurries present better resistance than polymeric multi-layers and bituminous mixtures to permanent deformation at higher temperatures (40 to 60 ℃), but show some deficiencies in adhesion properties. However, the surface characteristics of polymeric multi-layers are preferable to those of slurries and traditional bituminous mixtures.
机译：在混凝土桥梁和高架桥甲板上，传统的沥青路面经常会快速降解，特别是由于降水，交通负荷和化学侵蚀。路面破坏也可能是由于与钢筋腐蚀有关的潜在裂缝。因此，防水在结构的耐久性中起着重要的作用。防水可以通过在表面层中混合或一起使用的聚合物粘合剂和骨料来完成。本文总结了旨在机械表征用于桥梁防水和铺路的树脂-骨料混合物（预混合和多层）的研究的主要结果：两种树脂以及几种类型的天然和人工/工业骨料（EAF矿渣，C＆D骨料） ，石灰石和石英砂）。进行了永久变形抗力和附着力测试，并进行了试验以定义产品的表面特性（防滑性，渗透性，宏观纹理）。比较表明，聚合物浆液比聚合物多层浆和沥青混合物在更高的温度（40至60℃）下具有更好的耐永久变形性，但在粘合性能方面存在一些不足。但是，聚合物多层的表面特性优于浆液和传统沥青混合物的表面特性。

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