Alkali-activated unfired foamed ceramic and preparation method thereof: Fid-Bau Portal

Alkali-activated unfired foamed ceramic and preparation method thereof

HUANG LIANG / XU YICHAO / ZHANG TAO

The invention discloses alkali-activated unfired foamed ceramic and a preparation method thereof, and relates to the technical field of building materials. The alkali-activated unfired foamed ceramic is prepared from mineral powder, fly ash, antimony tailings, an alkali activator, a foaming agent, a foam stabilizer and a retarder. The preparation method comprises the following steps: uniformly mixing and stirring the mineral powder, the fly ash, the antimony tailings, the foam stabilizer and the retarder dry material, adding the alkali activator, continuously stirring to obtain alkali-activated slurry, adding the foaming agent into the slurry, quickly and uniformly stirring to obtain foamed ceramic slurry, and finally performing injection molding, pre-curing, high-temperature curing, demolding and room-temperature curing. The invention aims to solve the problems of high energy consumption, complex process, uncontrollable pore structure, high cost, long production period and the like of the traditional foamed ceramic. The foamed ceramic prepared by the invention is high in strength, light in weight, uniform and controllable in pore structure and relatively good in thermal insulation effect. The invention can be widely applied to the technical field of building exterior wall fire prevention and heat insulation.

本发明公开了一种碱激发免烧发泡陶瓷及其制备方法，涉及建筑材料技术领域。本发明的碱激发免烧发泡陶瓷由矿粉、粉煤灰、锑尾矿、碱激发剂、发泡剂、稳泡剂、缓凝剂组成。制备方法为矿粉、粉煤灰、锑尾矿、稳泡剂、缓凝剂干料混合搅拌均匀，加入碱激发剂继续搅拌得到碱激发浆料，向浆料中加入发泡剂快速搅拌均匀得到发泡陶瓷浆料，最后注模，预养护，高温养护，脱模，室温养护。本发明的目的是为了解决传统发泡陶瓷能耗高、工艺复杂、孔隙结构不可控以及成本高生产周期长等问题。本发明制备的发泡陶瓷强度高、质量轻、孔结构均匀可控、保温隔热效果较好。本发明可广泛应用于建筑外墙防火、保温隔热技术领域。

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