Research on the Mixture Proportion Design of Cement Plant Mixing Cold Regenerated Base Course
With the increasing saturation of new highways in China,highway reconstruction and expansion has become an inevitable trend of highway construction.Cold regenerated cement stabilized base course has been widely used due to its advantages of low cost,high efficiency,good quality and strong environmental protection.In this paper,raw material selection,aggregate gradation analysis,mixture proportion design,mixture proportion verification and other links are deeply studied.Finally,the production mixture proportion is determined as new material(13.2-26.5 mm)∶ asphalt milling material(9.5-31.5 mm)∶ cement stabilized milling material(9.5-31.5 mm)∶ asphalt milling material(0-9.5 mm)∶ cement stabilized milling material(0-9.5 mm)= 0.3 ∶ 0.13 ∶ 0.13 ∶ 0.17 ∶ 0.27.The results show that the cement plant mixing cold regenerated mixture meets the quality indicators and has good road performance.
plant mixing cold regenerationbase course constructiontechnical indicator of the mixturemixture proportion design
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