Abstract: The orthogonal test was used to study the effect parameters such as dosage of gold tailings, fly ash, coal, preheating temperature, preheating time, calcination temperature, and calcination time on property of ceramsites. The packing density, cylinder pressive strength and water absorption rate were selected as the indexes. The optimum parameters were obtained. The results show that when the mass of gold tailings is 55 g, the mass of fly ash is 34 g, the mass of coal is 3 g, the preheating temperature is 450 ℃ , the preheating time is 60 min, the calcination temperture is 1 150 ℃ holding 120 min, the comprehensive property of the ceramsites is the best.

Keywords: gold tailings; ceramsite; orthogonal test

中图分类号：TU521          文献标志码：A

文章编号：1008-5548（2014）04-0064-04

DOI:10.13732/j.issn.1008-5548.2014.04.015

收稿日期：2014-03-02， 修回日期：2014-05-20，在线出版时间：2014-08-28。

第一作者简介：段美学（1963—），男，工程师，主要从事水泥生产、技术与管理工作。 E-mail：672870600@qq.com。