废红石膏混合胶结材的研究

本文叙述研究开发废红石膏混合胶结材的意义，采用的技术路线和配合比的选择试验，研究了该胶结材的主要物理力学性能和耐久性能，分析了该胶结材水化硬化规律，硬化体结构及其与性能的关系。

影响纸面石膏板配料工艺的主要因素

影响纸面石膏板产品质量的主要因素是对原料质量和配料系统的控制,从石膏原料、建筑石膏生产工艺、添加剂、计量设备和混合设备等方面重点分析影响纸面石膏板配料工艺的因素。实践表明,不同来源的石膏原料和不同生产工艺的建筑石膏,由于石膏品位、石膏原料中有害物质种类和含量、建筑石膏三相组成等不同,需要有针对性的设计配料工艺流程和搭配使用添加剂,优化工艺流程和进行石膏改性,同时在满足计量精度的前提下,综合技术因素和成本因素合理选择计量给料设备和混料设备。

A NEW AREA IN UTILIZATION OF COAL MINE WASTE-DEVELOPMENT OF A NEW TYPE OF MOULDING MATERIAL

This paper concentrates on the research of plaster-bonded moulding matertal with coal mine waste as its major filler and its process. Having made a careful investigation of various factorsaffecting properties of the moulding material, the authors optimize several new formulations of thismaterial and the prarees which are inexpensive, convenient in application, precise in bokling sizoof moulds.