Development and Use of Attles and Special Fine Sand in Making up Concrete

The attles in the west part of Henan province and the special fine sand in Kaifeng are mixed to make up concrete, which possesses the outstanding characteristics of high sbength, good flowability, easy of bump delivery, high impermeability and high antifreeze, fow price, as well as the local available materials. This gnd perfonnance concrete, which can make up the vallous prosperity of vallous places, is one of the important ways of reducing product costs and cutting down the expense of the works at pasent or even in the future. As a result, it is worth well devefoping and using this kind of concrete.