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以目前高等级公路广泛应用的水泥稳定碎石混合料为例,对其含水量和干密度之间的关系进行了讨论,得到了能够用于实际的最大干密度和最佳含水量的求解方法。首先利用图解法对曲线进行拟合,得出采用大于三阶的多项式拟合曲线可以得到合适的最佳含水量和最大干密度;其次利用牛顿插值的方法对最大干密度进行了求解;然后对曲线拟合求解和数值求解进行了比较,认为对于试验技术人员而言,随着office的普及利用图解法进行求解更具有实际意义;最后,针对由于求解方法不标准导致的最大干密度偏小这一缺陷,从两个方面分析了其对混合料性能造成的影响。
Taking the cement stabilized aggregate currently used in high-grade highways as an example, the relationship between water content and dry density is discussed, and the solution to the actual maximum dry density and optimum moisture content is obtained . First of all, the curve is fitted by using the graphic method, and the polynomial fitting curve larger than the third order is used to get the optimum moisture content and the maximum dry density. Secondly, the maximum dry density is solved by the Newton interpolation method. Curve fitting solution and numerical solution are compared. It is considered that it is more practical for experimental technicians to use graphic method to solve the popularization of office. Finally, in view of the fact that the maximum dry density due to the non-standard solution method is too small A defect, from two aspects of its impact on the performance of the mixture.