Present conditions and prospect research of crack repair materials in airport runway;

Improving shrinkage of the MMA based repair material for concrete;

Study on the new phosphate cement repair material with super rapid hardening

Used as a kind of mending material,the modified cement concrete-polymer has wide applicability and economical value.

Influence of fly ash on property of phosphate cement based patching material;

To counter the problems occurred commonly in the base of asphalt pavement,a new self-compacting patching material consists of cement,aggregate and some additive such as water reducing and expanding additive named UEA is made up with the method of homogeneous design.

This paper analyses the technical schemes of corrosion patching, through practieal investigations and test researches on corrosion mechanism of hydraulic reinforced concrete structures, presents the optimum choise of patching materials.

According to the analysis on the change of physical parameters in equalizer working on electrical parameter,this paper makes use of material compensation to meliorate the frequence excursion caused by temperature change with double cavities structure as an example.