Highway management office for the first time to make polymer structure quickly repair materials to repair the bridge expansion joints

Polymer structure of rapid repairing materials to repair the bridge expansion joint yinchuan news network ( Reporter 闫莹) April 25, in the west of yinchuan silver hemp YongEr dry ditch bridge, yinchuan highway management office technician is leading workers to repair the expansion joint of bridge damage. It is understood that the repair bridge damage expansion joints used the structure of high polymer rapid repair materials, and this is the first time rural highway management in yinchuan highway use new materials to repair the bridge expansion joint. According to introducing, polymer structure of rapid repair materials, based on cement combined with beautiful seam an agent, high strength materials ( Quartz sand) As aggregate, polymer powder, high efficiency water reducing beauty seam an agent and early strength beauty seam an agent, expansion the seam an agent, prevent segregation type made from materials such as super early strength of concrete structure repair materials, with their excellent, rapid hardening, early strength, high strength, no shrinkage, micro expansion; Nontoxic and harmless, not aging, on the water quality and the surrounding environment pollution-free, good tightness, the rust resistance etc. Highway administration maintenance division deputy section chief sainter told reporters that the polymer structure of rapid repair material mixes with water according to the proportion, casting directly in the expansion joints can be open to traffic, only 2 hours after 28 days and slot pouring concrete requires 'curing period'. It is understood that in recent years, yinchuan, the implementation of the 'orange maintenance' transportation, popularization and application of advanced rapid maintenance technology, improving maintenance means of production, improve the level of curing technology. 'Highway bridge using new material not only can be quickly restored lesions, to ensure the safety of pedestrians and Bridges, but also to ensure rapid traffic intensity. 'Sainter said to reporters.