The first "arm" of the trial, in which PRO 2000 formed 2% of the gel, was abandoned early because results elsewhere suggested this was an ineffective mix.
After analyzing the trial data, it gives the reasonable mix proportions for enhancing apparent freezing and thawing resistance durability of concrete member.
通过对试验数据的整理分析，给出提高混凝土构件的表观抗冻耐久性的合理配合组成。
3
The authors introduce conditions of mix design of pavement cement concrete, demand of design, parameter of design and calculating ways, and introduce orthogonal trial method briefly .