Research on theApplication of Red Sandstone Filler in Highway Subgrade Filling
Taking the Huaining West Interchange Project of G50 Shanghai-Chongqing Expressway in southern Anhui as an example,aiming at the problem of red sandstone as a bad roadbed filler,a series of geotechnical tests on indoor road performance were carried out to study the fea-sibility of red sandstone as roadbed filler.Combined with the test results,the design scheme and construction quality control measures of red sandstone as roadbed filler were put forward.
Red sandstoneDisintegration indexExpansion rateCBRPre-disintegration
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