| In recent years, with the improvement of economic level, highway bridge constructiongets some development, pavement damage more and more prominent under the increasingof traffic and overload, which is seriously affected the driving comfortable and security.Meanwhile, in the transportation network, bridges are often the key bottlenecks of roadcapacity, once severed diplomatic or decreased, it would cause the entire road and thewhole road network running inefficient, causing serious social influence and economiclosses. Domestic and foreign experts and scholars made a lot of research on the structureand construction of pavement, but little research on how to deal with the damagedpavement. So, how to patch, especially at low temperatures, unclosed the road, fast andefficient to repair is a serious problem to be solvedIn this paper, the research on the cold patch asphalt both home and abroad areconcluded. Analyze the damage types, causes and countermeasure of the deck pavement.On the basis, choose palette beam, T beam bridge deck repair system, comprehensiveanalysis of the bridge deck pavement of the force characteristics by ansys software, throughhorizontal loads and vertical loads, found the most unfavorable position, and identified thepatch block with respect to the optimum pavement modulus, to provide a theoretical basisof the cold patch asphalt mixture. The optimal combination of the cold patch asphaltmixture are analyzed by orthogonal test， and made a production technology andconstruction technology of the cold patch asphalt mixture. |
