砂岩质煤矸石制备外墙泡沫保温材料

Preparation of Thermal Insulation Foam Material for Exterior Wall with Sandstone Coal Gangue

为寻求外墙泡沫保温材料的原料来源,以砂岩质煤矸石和抛光砖泥为主要原料,通过优化颗粒级配、陈化增塑、添加无机增塑剂等措施,探索提高原料可塑性、生产合格制品的工艺技术。通过抛光砖泥和添加剂掺量的不同,分析掺入料对制品体积密度、抗压强度、导热系数的影响,设计正交试验确定适宜的添加剂含量;以对烧结制度影响较大的预热温度、预热时间、烧结温度和保温时间为4个因素设计正交试验,确定烧制保温材料的最佳烧结制度。该研究结果为综合利用工业废料制备新型建材提供了新的途径。

In order to seek the sources of raw materials for exterior foam insulation material,through optimizing of particle gradation,improving plasticity and adding inorganic plasticizer,techniques for increasing its plasticity and making the qualified product are found out,with the sandstone coal gangue and polishing tile waste as the main raw materials. Analysis is made on the effect of bulk density,compressive strength and thermal conductivity,with different amount of polishing tile waste and addi-tive,to design the orthogonal experiment to determine the suitable additive content. The optimum sintering procedure is con-firmed with orthogonal test of choosing preheating temperature,preheating time,sintering temperature and holding time as four main factors,which has great effect on the sintering procedure. The results provide a new way to produce new building materials for the comprehensive utilization of industrial waste.