Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention belongs to the technical field of auxiliary materials of building materials, and provides solid-waste-based high-strength unfired fly ash ceramsite and a preparation method thereof in order to solve the problems that ceramsite prepared from single fly ash is low in strength, cost is increased as the strength of fly ash ceramsite needs to be increased at present and the like in the prior art. The strength of the prepared fly ash ceramsite in the invention reaches 10-14 Mpa. The preparation method comprises the following steps: mixing fly ash, attapulgite, cement, silica fume and diatomite according to a mass ratio of 70: 10: 10: 5: 5, and adding a sodium hydroxide solution accounting for 20-25% of the total mass of the mixed raw materials, a hydrogen peroxide solution accounting for 0.5-5% of the total mass of the mixed raw materials and water glass accounting for 5% of the total mass of the mixed raw materials. According to the invention, the problem of low strength of fly ash serving as concrete aggregate is solved; and the problem that fly ash powder is not easy to recycle as a sewage filter material is solved, and the adsorption performance of common unfired fly ash ceramsite is improved.
本发明属建筑材料的辅助材料技术领域，为解决单独粉煤灰制备的陶粒强度较低，目前要增加粉煤灰陶粒强度成本提高等问题，提供一种固废基高强免烧粉煤灰陶粒及其制备方法，所制备的粉煤灰陶粒强度达到10‑14Mpa。由如下质量比的原料混合：粉煤灰：凹凸棒土：水泥：硅灰：硅藻土=70:10:10:5:5，然后加入混合原料总质量20%‑25%的氢氧化钠溶液、混合原料总质量0.5%~5%的过氧化氢溶液，以及混合原料总质量5%的水玻璃制备而成，本发明不仅解决了粉煤灰作为混凝土骨料强度不高的问题；又解决了粉煤灰粉体作为污水滤料不易回收的问题，而且提高了普通免烧粉煤灰陶粒的吸附性能。
The invention belongs to the technical field of auxiliary materials of building materials, and provides solid-waste-based high-strength unfired fly ash ceramsite and a preparation method thereof in order to solve the problems that ceramsite prepared from single fly ash is low in strength, cost is increased as the strength of fly ash ceramsite needs to be increased at present and the like in the prior art. The strength of the prepared fly ash ceramsite in the invention reaches 10-14 Mpa. The preparation method comprises the following steps: mixing fly ash, attapulgite, cement, silica fume and diatomite according to a mass ratio of 70: 10: 10: 5: 5, and adding a sodium hydroxide solution accounting for 20-25% of the total mass of the mixed raw materials, a hydrogen peroxide solution accounting for 0.5-5% of the total mass of the mixed raw materials and water glass accounting for 5% of the total mass of the mixed raw materials. According to the invention, the problem of low strength of fly ash serving as concrete aggregate is solved; and the problem that fly ash powder is not easy to recycle as a sewage filter material is solved, and the adsorption performance of common unfired fly ash ceramsite is improved.
本发明属建筑材料的辅助材料技术领域，为解决单独粉煤灰制备的陶粒强度较低，目前要增加粉煤灰陶粒强度成本提高等问题，提供一种固废基高强免烧粉煤灰陶粒及其制备方法，所制备的粉煤灰陶粒强度达到10‑14Mpa。由如下质量比的原料混合：粉煤灰：凹凸棒土：水泥：硅灰：硅藻土=70:10:10:5:5，然后加入混合原料总质量20%‑25%的氢氧化钠溶液、混合原料总质量0.5%~5%的过氧化氢溶液，以及混合原料总质量5%的水玻璃制备而成，本发明不仅解决了粉煤灰作为混凝土骨料强度不高的问题；又解决了粉煤灰粉体作为污水滤料不易回收的问题，而且提高了普通免烧粉煤灰陶粒的吸附性能。
Solid-waste-based high-strength unfired fly ash ceramsite and preparation method thereof
一种固废基高强免烧粉煤灰陶粒及其制备方法
28.12.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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