This text combined the characteristic of concrete under construction in the northeast region in the winter with its freezing ruin elements, systematically analyzed the affection of the early freezing ruin on concrete capability according to experiment data and information in point and proposed some measures that should be adopted to prevent similar problems.

Experimental research about the early age frost of concrete;

From material,construction and other aspects reasons caused early damage of asphalt concrete pavement of highway are analyzed,at the same time a series of preventive measures are proposed from pavement design,raw material,construction management and other aspects,in order to increase the quality of asphalt concrete pavement and prolong the service life of road.

Forming reasons and protecting measures of early diseases on bitumen road surface;

Discussion on the early disease of express highway asphalt pavement and preventing measures

This article analyzed the early disease of flexible bridge deck pavement of steel concrete bridge as well as the cause of it.

This paper introduces the corresponding solving countermeasures to some kinds of early diseases of asphalt pavement.