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混凝土材料单价是根据组成混凝土的各种材料用量即混凝土配合比进行计算的。混凝土配合比受水灰比、砂率、单位用水量等多个参数的影响,研究混凝土配合比参数,就是研究它们之间的内在关系。在编制定额配合比材料用量时,相关参数不能简单地在规定的范围内随意选一个值,或者不分具体情况而采用相同的值,必须在分析研究后恰当确定,使隐含在这些用量数据中的各参数之间的关系既符合规程、规范要求,又能指导工程计价。
The unit price of concrete material is calculated according to the amount of various materials composing concrete, that is, concrete mix ratio. Concrete mixing ratio is affected by many parameters such as water-cement ratio, sand rate and unit water consumption. Studying the parameters of concrete mix ratio is to study the internal relationship between them. In the preparation of the amount of fixed mix of materials, the relevant parameters can not simply choose a value within the specified range, or regardless of the specific circumstances and the same value must be properly determined after the analysis and research, so implied in these dosage data The relationship between the parameters in line with the rules, norms, but also guide the project pricing.