[摘　要]　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。
[关键词]　水利工程,定额,混凝土配合比,参数研究
Abstract: Concrete material price is calculated according to various material usage of concrete. Concrete mix is influenced by many parameters, such as water-cement ratio, sand percentage, unit water and so on. To research concrete mix proportion is to study the inner relationship between them. When working out materials consumption proportion, the related parameters can't simply stipulated by random selection value within the scope, or to choose the same value regardless of specific circumstances, to properly determine after the analysis and research. The relationship between the parameters must meet specifications, and can guide engineering valuation.
Key words: water conservancy project, norm, concrete mix proportion, parameters research
建筑经济，2011（9）：49-52