近十多年来,世界各国,在建筑工程上,都在普通研究和采用着轻质高效能的建筑材料。在苏联及其他先进国家,对轻质混凝土的使用愈益广泛。制作轻质混凝土的方法很多,其中以使用轻集料较为普遍。一般轻集料有天然石料、工业废料和人工集料三种。蛭石、浮石是天然轻集料中主要的两种。各工业先进国把蛭石和浮石用作轻质混凝土的集料,而在建筑上广泛应用还是近十几年来的事。这两种材料优点多,用途广。我国近几年来,也作丁多方而的研究、推广使用工作。蛭石的性能和用途蛭石为一种次生矿物,是铁镁质云母(又叫做水金云母),经交代作用、水化作用用其他变质而形成复杂化学成份的水铝矽酸盐。含有多量的结晶水,呈 In the past decade or more, all countries in the world, in terms of construction engineering, have generally studied and adopted lightweight and high-efficiency building materials. In the Soviet Union and other advanced countries, the use of lightweight concrete has become increasingly widespread. There are many ways to make lightweight concrete, of which the use of light aggregates is more common. General light aggregates include natural stone, industrial waste and artificial aggregate. Vermiculite and pumice are the two main types of natural light aggregates. The industrial advanced countries have used vermiculite and pumice as aggregates for lightweight concrete, and they have been widely used in buildings for more than a decade. These two materials have many advantages and are widely used. In recent years, our country has also done research and promotion of the use of Ding. The Properties and Uses of Vermiculite Vermiculite is a secondary mineral. It is magnesia mica (also known as hydrophlogopite) and it is hydroaluminated with other metamorphic and complex chemical components after metasomatism and hydration. Contains a large amount of crystal water