An approach to ground of fine aggregate concrete without sand is introduced in respects of raw and processed materials, proportioning ratio, construction technology, and so on.

The design principle and construction technology of stone contained sandfree prepakt concrete subposts are analyzed in the combination of engineering case.

In older to resolve the problem of the great amount of cement and the high cost of non-sand cement grounting pile at parent, after testing studies, it is demonstrated that if fly ash is mixed into non-sand concrete by 15%￣ 20% amount of cement, and water cement ratio equal or less than 0.

Mix design of the no-fines concrete grouting pile;

This article adopts orthogonal experiment method to carry out research on resistance press and percolation of no-fines concrete, and mensurates porosity and effective porosity of no-finesconcrete and discusses the formula of calculating percolation co-efficient and analyses the factors that have effect on intensity and percolation of no-fines concrete, the mix proportion for practice is raised.

Experimental study on mechanical properties of C45 fine aggregate concrete;

In this paper the construction technology of fine aggregate concrete floor casted at a time in construction is introduced which based upon mud extracting technique.

Through freeze-thaw cycle test,the bond property and the freeze-thaw resistance of frost-damaged concrete strengthened by polypropylene fiber reinforced fine aggregate concrete were studied.