Speaking of cement pipes , I believe that we will not be unfamiliar. The presence of cement pipes has brought a lot of convenience to our urban life. With the development of urbanization, the pace of infrastructure construction has been accelerating, and with the increasing progress of environmental protection requirements, The proportion of cement pipes in urban infrastructure construction is also increasing. The cement pipeline project is closely related to the people's production days. The good or bad of its use function involves the immediate interests of millions of households, and it is related to the ecological problems of urban flood prevention and groundwater and soil pollution. Under such an important application situation, how much do we know about prestressed cement pipes and self-stressed cement pipes ?
The pre-stressed cement pipe is used to moderately stretch the steel bars in the concrete before the concrete is condensed. After the concrete is condensed, the external force is removed, and the steel bars will have a shortened stress in the concrete, making the reinforced concrete stronger and less likely to occur crack.
Self-stressed cement pipes are made of special cement. They are mainly used for self-stressed reinforced (steel wire mesh) concrete (mortar) pressure pipes. The same components are not easy to crack. The difference between the two is that the former uses a single steel bar and general cement, and the latter uses steel wire mesh and special cement.