不同影响因素对透水性沥青路面中防水粘结层粘结性能的影响

Influence of Different Influencing Factors on Bond Property of Water-Proof Bond Course in Permeable Asphalt Pavement

防水粘结层是透水性沥青路面面层结构的重要组成之一,其粘结能力直接影响沥青路面的路用性能及耐久性。其中防水粘结层的涂抹量、老化程度及温度、孔隙水均对其粘结效果产生影响,为了明确以上因素对防水粘结层粘结能力的影响程度,对四种防水粘结材料在不同涂抹量、试验温度及冻融循环、粘结材料老化程度、浸水条件下进行剪切强度测试,明确不同防水粘结层的最佳用量及其他影响因素对其粘结能力的影响关系。

Water- proof bond course is one of important parts of surface course structure of permeable asphalt pavement,and its bonding capacity directly influences the pavement performance and durability of asphalt pavement. In which,the smearing amount,degree of aging and temperature,and void water of water- proof bond course exert the influence on its bonding effect. In order to clear and definite the influencing degree of above factors on the bonding capacity of water- proof bond course,the shear strength tests are performed for four kinds of water- proof bonding materials under the conditions of different smearing amounts,test temperatures and freezing and thawing cycles,degree of aging of bonding materials and soaking,and the influence relation of the best dosage and other influencing factors of different water- proof bond course on its bonding capacity is determined.