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前言高炉矿渣,是冶炼生铁时排出的一种副产品,数量一般是生铁产量的80%,它是制造多种建筑材料的珍贵原料。在总路线光辉的照耀下,全国掀起了全民大办钢铁的运动,钢铁工业在飞跃地向前发展;矿渣也日益增多,数量异常巨大。今年全国的矿渣将达二千万吨以上,浙江也有几十万吨,如何有效地加以利用,就成为十分重要和迫切的课题了。但是过去的矿渣称为“废渣”,把它看做是一种废物,大量丢弃,堆积如山,利用的只是很少一部份,而且主要用来做硅酸盐水泥的一种摻合料罢了,人们对它也很少进行研究。
Introduction Blast furnace slag is a by-product discharged from the smelting of pig iron. The quantity is generally 80% of the output of pig iron. It is a valuable raw material for manufacturing a variety of building materials. Under the brilliance of the general route, the nationwide movement of the steel industry was launched. The iron and steel industry is making a leap forward; slags are also increasing and the number is extremely large. This year, the country’s slag will reach more than 20 million tons and Zhejiang will have hundreds of thousands of tons. How to effectively use it will become a very important and urgent issue. However, in the past, slag was referred to as “waste slag”. It was treated as a kind of waste, and was discarded in large quantities. It was piled up like a mountain and used only a few parts. It was mainly used as a mineral admixture for Portland cement. People rarely study it.