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一、前言近几年来,我国水泥混凝土路面发展较快,对材料的需求量也随之增加。对材料的品种、规格、性能和质量提出了更高的要求。修筑水泥混凝土路面的材料包括水泥、粗细集料、外掺剂、填缝料等,其中水泥是基本和主要成分,用量很大,专供路面使用的水泥有待开发;外掺剂是水泥混凝土五大组分之一,使用外掺剂已被公认为是提高水泥混凝土强度、改善和易性、节约水泥的有效途径,但在路面工程中未受到足够的重视,应用很少;填缝料则是保证水泥混凝土路面正常使用的重
I. Introduction In recent years, the rapid development of China’s cement concrete pavement, the demand for materials also will increase. The varieties of materials, specifications, performance and quality put forward higher requirements. Building cement concrete pavement materials include cement, coarse aggregate, external admixture, sealant, etc., of which cement is the basic and main components, a large amount of cement used exclusively for pavement to be developed; external admixture is the cement five One of the components, the use of external admixture has been recognized as an effective way to improve the strength of cement concrete, improve workability and save cement, but not enough attention in pavement engineering, application is very small; To ensure the normal use of cement concrete pavement weight