Application of Artificial Sand in Pipe Pile Concrete
This paper determines the basic mix proportion parameters of C80F350 artificial sand concrete, tests its workability, mechanical properties and durability, and carries out trial production of artificial sand concrete pipe piles. Bending tests are conducted on the pile bodies, and compressive and frost resistance tests are conducted on pile body cut blocks. The results show that: (1) Mixed sand made by blending existing manufactured sand with natural fine sand in a certain proportion can be used to prepare C80F350 artificial sand concrete with performance as excellent as that of natural sand concrete; (2) Compared with natural sand concrete, C80F350 artificial sand concrete has the characteristics of higher compressive and splitting tensile strength, better frost resistance and impermeability, lower chloride ion permeability coefficient, and larger elastic modulus; (3) C80F350 artificial sand concrete is compatible with existing pipe pile production processes, and the bending performance and cut-block performance of pipe piles...
2015-08-24
