Compared to typical asphalt mixtures, poroelastic mixtures are characterised by high porosity and high flexibility, which are desirable for traffic noise reduction. However, the same properties increase the risk of debonding from the lower layer, which is a significant source of premature damage. The study investigates which of the factors – tack coat agent, type and texture of the lower layer – have the greatest impact on interlayer bonding quality. From 27 variants of interface bond techniques investigated in laboratory, 8 were selected and constructed on two full-scale test sections. Monotonic direct shear loading and cyclic direct shear loading tests with normal force were used for this purpose. The tests indicated that softer bitumen used for the tack coat and the milled texture of the lower layer improves bond quality. However the appropriate laying compaction has the major influence. Poroelastic mixtures are much more sensitive to technological imperfections than standard asphalt mixtures.

与典型的沥青混合物相比，多孔弹性混合物的特征在于高孔隙率和高柔韧性，这对于减少交通噪声是理想的。但是，相同的特性会增加从下层剥离的风险，这是过早损坏的重要原因。该研究调查了哪些因素（粘性涂层剂，下层的类型和质地）对层间粘合质量的影响最大。从实验室研究的27种界面键合技术的变体中，选择了8种，并在两个完整的测试部分上构建。为此，使用法向力的单调直接剪切载荷和循环直接剪切载荷试验。测试表明，用于粘性涂层的较软沥青和下层的碾磨纹理可改善粘结质量。然而，适当的铺设压实具有主要影响。多孔弹性混合物比标准沥青混合物对技术缺陷更敏感。