Properties of the soil of soft foundation is expressed. According to the theory of hydrological geology, consolidation mechanism of chemicalcement grouting in soft foundation is probed.
This standard covers the requirements for primers to be used in conjunction with solvent cement for the chemical fusion of PVC pipe and fitting joints.
这个标准涵盖采用液状粘固剂进行底漆连接的要求，适用于PV C管道和连接件连接化学熔化。
3
Selection of specific type, grade and consistency of solvent cement should take into account pipe type, size, installation conditions and chemical compatibility of cement and system fluids.