火山灰掺合料对水泥基材料性能的影响现状

Effects of Volcanic Ash Admixture on Properties of Cement-Based Materials

火山渣作为一种绿色环保的矿物质颗粒,具有轻质、导热系数小等优点,常被用于混凝土轻骨料及墙体中,其主要成分为活性氧化物,因此粉磨后同样可以作为水泥活性混合材料应用于工程建设中,具有一定的经济效益和社会效益。本文详细综述了火山灰的应用现状及用作掺合料时对水泥胶结材抗压强度及耐久性的影响,总结了改善火山灰混凝土早期强度、抗渗性的措施,并提出应进一步因地制宜地研究地区差异对火山渣的物理化学特性的影响。

As a green mineral particle,volcanic slag has the advantages of light weight and low thermal conductivity,it is often used as light aggregate for concrete and in walls.Its main component is active oxide,so after grinding it can also be used as a cement active mixture in construction,with certain economic and social benefits.This paper provides a detailed review of the current status of the application of volcanic slag and its effect on the compressive strength and durability of cementitious materials when used as a mineral admixture,and the measures to improve the early strength and impermeability of volcanic ash concrete are summarized in the paper,and it is suggested that the influence of regional differences on the physicochemistry properties of volcanic slag should be further studied according to local conditions.