Application Research on Construction Technology of Porous Basalt Water Stable Base in Highway Engineering
In this paper,with the technical application background of water stabilization base and base construction of new and expanded expressways,as well as primary and secondary highway base construction,the application of porous basalt to water stabilization base construction is studied.The hardness degree of rock is divided according to the saturated water compressive strength of rock,and rock durability tests such as rock robustness test and freeze-thaw cycle test are carried out.It is clear that the rocks used for the production of base aggregate should be carefully screened for self-processing of dense rocks with high strength,low saturated water absorption,and aggregate quality should meet the requirements of specifications and design documents,while appropriately increasing the dosage of cement.The results show that by optimizing the design of porous basalt mix and adjusting the combination of rolling machines,controlling the number of rolling passes and the water content of mixture,the porous basalt cement stabilized gravel has a good compactness effect.
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