Composite biomass binder modified alkali-activated cementing material and preparation method thereof: Fid-Bau Portal

Composite biomass binder modified alkali-activated cementing material and preparation method thereof

JIANG JUAN / NIU QIANG

The invention belongs to the technical field of industrial solid waste resource utilization and building materials, and provides a composite biomass binder modified alkali-activated cementing material and a preparation method thereof. The alkali-activated cementing material is prepared from an alkali activator, a composite biomass binder and industrial solid waste, the composite biomass binder is prepared from plant biomass and starch, the alkali-activated cementing material is prepared by activating and exciting plant biomass in an alkali activator solution at room temperature and then sequentially adding starch and industrial solid waste. The raw materials are wide in source, renewable, low in price and environmentally friendly, the starch provides early strength for the cementing material, and the plant biomass is better dispersed in the cementing material after being subjected to alkaline excitation modification, so that the cementing material with a uniformly distributed fiber network is obtained, and meanwhile, the early and long-term strength of the cementing material is improved; and the application is wide.

本发明属于工业固废资源化利用和建筑材料技术领域，提供了一种复合生物质粘结剂改性碱激发胶凝材料及其制备方法。所述碱激发胶凝材料组成包括：碱激发剂、复合生物质粘结剂和工业固废；所述复合生物质粘结剂组成包括：植物生物质和淀粉；通过将植物生物质在碱激发剂溶液中室温活化激发，然后依次加入淀粉、工业固废，制备得到该碱激发胶凝材料。本发明的原料来源广泛、可再生、价格低廉、环境友好，其中淀粉为胶凝材料提供早期强度，植物生物质经碱性激发改性后更好地分散在胶凝材料中，从而获得纤维网络均匀分布的胶凝材料，同时实现了胶凝材料早期和长期强度的提高，具有广泛的应用。

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