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利用正交设计安排试验 ,讨论了砂率 ( Sp)及拌和用水量 ( W)对碾压混凝土稠度( VC)的影响 ;利用二次正交回归分析建立了 VC值与 Sp 及 W关系的数学模型 ,并对所建模型的显著性进行了数学分析
The effects of sand rate (Sp) and mixing water (W) on the roller compacted concrete (VC) were discussed using orthogonal test. The mathematical model of relationship between VC value and Sp and W was established by using quadratic orthogonal regression analysis Model, and the significance of the model was analyzed mathematically