求翻译：将废旧料粉取代水泥混凝土中部分砂，以废旧料粉占砂的比例为主要变量，通过实验探索最佳的废旧料掺量；同时考察废旧料粉的沥青含量、细度及环境温度等其他因素对掺废旧料粉的水泥混凝土性能的影响。是什么意思？

Waste material powder to replace some sand in the cement concrete waste material powder accounted for the proportion of sand as the main variable, and experiments to explore the best of the waste material content; investigated the asphalt content of the waste material powder, fineness, and ambient t

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Worn out material powder substitution cement concrete in partial granulated substance, occupies the granulated substance take the worn out material powder the proportion as the main variable, explores the best worn out material through the experiment to mix the quantity; Simultaneously inspects the

Waste toner replace some sand in cement concrete, waste material of powder sand as the main variable, experiment and explore the best of waste material and investigation of waste asphalt content, fineness of powder and other factors such as ambient temperature on properties of concrete mixed with wa

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