Municipal road broadening anti-cracking structure and construction method thereof: Fid-Bau Portal

Municipal road broadening anti-cracking structure and construction method thereof

HE XIAOMAN / LI PEI / XU DEJUN / ZHU XIANHUI / ZHANG GAN / YANG CHENXI

The invention provides a municipal road broadening anti-cracking structure. The municipal road broadening anti-cracking structure comprises a graded broken stone layer, a cement concrete cushion layer, a cement concrete base layer, coarse grain type modified asphalt concrete, medium grain type modified asphalt concrete and fine grain type modified asphalt concrete which are sequentially laid from bottom to top. A first emulsified asphalt bonding layer is laid between the coarse-grain modified asphalt concrete and the medium-grain modified asphalt concrete, a second emulsified asphalt bonding layer is laid between the medium-grain modified asphalt concrete and the fine-grain modified asphalt concrete, and a protective agent is laid on the surface layer of the fine-grain modified asphalt concrete. And a glass fiber grating is arranged between the cement concrete base layer and the coarse-grained modified asphalt concrete. The anti-cracking road has the advantage of road anti-cracking, and solves the problem that the use effect of the broadened road is affected due to the fact that the broadened road and the original road are not integrated and the broadened road cracks after being used for a long time.

本发明提供了一种市政道路扩宽防裂结构，包括从下到上依次铺设的级配碎石层、水泥混凝土垫层、水泥砼基层、粗粒式改性沥青混凝土、中粒式改性沥青混凝土、细粒式改性沥青混凝土；所述粗粒式改性沥青混凝土与中粒式改性沥青混凝土之间铺设有第一乳化沥青粘层，中粒式改性沥青混凝土与细粒式改性沥青混凝土之间铺设有第二乳化沥青粘层，在细粒式改性沥青混凝土的表层铺设有保护剂，水泥砼基层与粗粒式改性沥青混凝土之间设有玻纤格栅。本发明具备道路防裂的优点，解决了由于扩宽的道路与原有的道路不是一个整体，在长时间使用后，扩宽道路会出现裂痕，影响扩宽道路使用效果的问题。

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