Mudjack Technology at Bottom of Cement Concrete Slab

Through analyzing the causes of cement concrete pavement slab damage,according to the principle of "prevention is more important than disposal",such methods as jacking mud at bottom of slab,tamping slab bottom and transferring load equably are used to dispose the diseases like slab pumping,cavity and settlement.The measures can prolong the service life of cement concrete pavement greatly,improve the traffic quality,and reduce the maintenance cost,which have good social and economic benefit as well as popularization prospect.