The large shrinkage stress and thermal stress induced by ineffective measures for concrete curing and temperature insulation are the main causes at middle and later stages.
由于后期养护和保温措施不力产生较大的收缩应力和温度应力是引发中后期裂缝的主要原因。
2
The inventive water cooling system can cool the brake block, to reduce the temperature and avoid brake slide or ineffective, to solve the problem of heat regression of metallic brake block.