The Institute Of Reuse Gray Gravel Waste In The Link Road Of Liaocheng

The service life of our country's highways has been greatly shortened (compared with designed number of years) with the rapid economical development , the rapid growth of the volume of traffic and freight transport and overloaded vehicles getting more and more in addition . So rebuilding and overhauling of highways are getting more and more frequent and more and more wastes of LCAC (concrete formed by the mixture of lime , coal ashes and cobbles) have come into being . The important and newer problem confronting people in the industry is how to make rational use of the wastes and recycle the wastes in an economical and environment-protecting way . In combination with the 10-km-rebuilding of the Linqing-to-Boping highways (S257 , grade 2) and by consulting the only few pieces of material , the author has studied a lot about recycling wastes and has drawn better results . The difficult problem , thereby , is solved .Chapter 1 . Introducing the research aim of the paper , current situation in China and research content .Chapter 2 . Discussing performances of physical mechanics of the wastes concerned . We layed stress on making crushing-value experiments and sieving experiments . The results showed the mechanics index satisfied the standard demand . After stabilizing the wastes with different dosages of cement , the author determined the press strength and splitting strength and the relevant numerical value also satisfied the demand of construction standard . Hence the results proves that wastes of LCAC can be fully recycled .Chapter 3 . According to the design principle of flexible pavement , calculating the pavement structure made from wastes of LCAC being the base layer (bottom base layer) is up to technical criteria concerned .Chapter 4 . In combination with the rebuilding project , first introducing the methods of digging and clearing away , transporting and processing of wastes of LCAC , then designing the mixture proportion and introducing the working procedure of mixing , transporting , spreading and paving , pressing solid and curing . Through inspecting shaped pavement the author found the result was excellent . At last the author put forward the problems that needed attention . Recycling wastes of LCAC was proved in practice to be completely feasible .Chapter 5 . Evaluating recycling wastes of LCAC in an economical way and in a social benefit's way . Practice proves that this programme can not only cut down funds , reduce project costs but also be advantageous to environmental protection , especially be of full importance to protection of mine resources . As to regions lacking rock resources like Liaocheng the programme will yield more obvious economical benefit .Chapter 6 . Summing up the whole paper and posing perfect suggestions and applicable range so that the problem can play a better role .