混凝土为目前使用最广泛的建筑材料,提高混凝土的耐久性,延长工程结构的使用寿命意义重大。选择质量优良的原材料是配制混凝土、优化混凝土配合比、生产耐久性混凝土的基础，结合工程实践，分析水泥、掺合料、集料、外加剂指标对混凝土耐久性的影响。

Concrete is widely used in all kinds of projects. Improving concrete durability has great significance for the improving of the project service life. The selection of high quality raw materials is the basis for producing concrete, optimizing the concrete mixing ratio and producing durable concrete. The influence of the indexes of cements, mineral mixtures, aggregates and additives on the concrete durability is analyzed on basis of engineering practice.