Research Of The Application Of Saponification Slag In Highway Project

Saponification slag, which main composition is Ca(OH)2, is a by-product of chemical factories when they produce PVC by calcium-carbide-method. The whole output of PVC is 884 thousand tons in china in 1998, with 16-17 million tons of calcium carbide-slag, the PVC's yield is increasing every year in additioa So much saponification slag needs a large cover of field to deposit with a terrible smell, at the same time they pollute the surround environmentHow to make full use of saponification slag to reduce the pollution?How to make the saponification slag profit us?According to saponification slag is one kind of substandard lime, in this research, I use saponification slag to stabilize granule soil instead of lime. The intensity, rigidity, water stability, anti-scouring, shrinkage index of saponification slag stabilization is the same as the index of lime stabilization.Saponification slag stabilization granule soil can be used as bottom course of all highway. Saponification slag -fly ash stabilization granule soil can be used as bottom course of all highway. Saponification slag-fly ash can be used in the high fill sections of highway.These courses are all used in several highways project with good performance.The price of saponification slag is not high, which mainly rest with the transportation expenses. So there is a economic radius using saponification slag instead of lime.It can save cost in highway project, if we use saponification slag within the economic radius. It can make economic benefit, society benefit as well.