First-class bricks and waste (i.e. overburnt) bricks can be used as a substitute for stone aggregates in asphalt concrete. However, the high porosity of brick aggregate can result in moisture damage, which results in premature distresses in asphalt pavements. In this study, the effect of centrifuged latex (Cenex) on the moisture susceptibility of asphalt mixtures made with overburnt bricks and first-class bricks as aggregate was investigated. Moisture damage tests, such as tensile strength ratio, resilient modulus ratio, retained Marshall stability, boiling water and wheel-tracking tests, were conducted. It was found that the addition of Cenex to the virgin binder improved the mixture resistance against moisture damage for both aggregate mix types. Besides the improvement of moisture damage, the addition of latex also enhanced the rutting resistance and stability of a plain asphalt concrete mix. The work shows that Cenex enhances the performance of brick aggregate asphalt concrete against moisture damage and is an efficient substitution in pavement structures.

中文翻译：

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离心乳胶对砖骨料热拌沥青水分破坏的影响。

一流的砖块和废物（即过度燃烧）砖块可替代沥青混凝土中的石料。但是，砖集料的高孔隙率会导致湿气损坏，从而导致沥青路面过早损坏。在这项研究中，研究了离心胶乳（Cenex）对以超烧砖和一级砖为骨料制成的沥青混合料的水分敏感性的影响。进行了湿气破坏测试，例如拉伸强度比，弹性模量比，保留的马歇尔稳定性，沸水和车轮跟踪测试。发现将Cenex添加到原始粘合剂中对于两种骨料混合物类型都改善了混合物对水分破坏的抵抗力。除了改善湿气损害之外，乳胶的添加还增强了普通沥青混凝土混合料的抗车辙性和稳定性。这项工作表明，Cenex可以增强砖骨料沥青混凝土的抗湿性，并且可以有效替代路面结构。