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依托许尉高速公路工程,进行长寿命路面研究,给出长寿命路面定义,并提出长寿命路面的具体结构。水泥混凝土板与沥青混凝土层的刚度及模量相差较大,致使两层之间的接触面粘结力不大。为此,提出长寿命路面结构水泥混凝土板表面裸化技术,并设计研制了水泥混凝土路面裸化机,用以裸化水泥混凝土板表面,增强水泥混凝土板与沥青混凝土层之间的粘结力。同时,提出水泥混凝土路面的裸化技术要求、确定裸化时间以及裸化后的养护。
Relying on the Xu Wei highway project, long-life pavement research, given long-life pavement definition, and proposed long-life pavement concrete structure. The difference between the stiffness and modulus of cement concrete slab and asphalt concrete layer is large, resulting in small adhesion between the two layers. In order to solve this problem, a long-life pavement surface cement concrete slab surface nude technique is proposed, and a cement concrete pavement slab machine is designed to nudge the surface of the cement concrete slab and enhance the adhesion between the cement concrete slab and the asphalt concrete layer . At the same time, proposed the cement concrete pavement nudity technical requirements, to determine the nude time and maintenance after nursery.