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为研究水泥改良风化千枚岩填筑路基的可行性,在十天高速公路安康东段25标试验室内对3%、4%、5%水泥改良风化千枚岩的工程性质分别进行了研究,并在现场修筑试验路进行验证。通过对规范要求的各项指标的测试分析,并进行经济性比选后,确定对风化千枚岩掺加4%水泥的改良方案经济合理,可在高速公路路基填筑施工中应用。
In order to study the feasibility of using cement to improve the filling of roadbed by weathered phyllite, the engineering properties of 3%, 4% and 5% cement-modified phyllite were studied separately in the 25th standard laboratory of Ankang East Section of Ten-day expressway. And in the field to build test road for verification. Through the test and analysis of various indexes required by the specification and economic comparison, it is reasonable and reasonable to determine that the improved scheme of blending phyllite with 4% of cement can be applied in the construction of expressway embankment.