典型硅铝酸盐煤基固废物相结构调控制备新型多孔墙体材料研究

项目名称： 典型硅铝酸盐煤基固废物相结构调控制备新型多孔墙体材料研究

项目编号： No.51472007

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 一般工业技术

项目作者： 张作泰

作者单位： 北京大学

项目金额： 85万元

中文摘要： 现有建筑围护结构在构建零能耗绿色建筑时存在墙体结构复杂、施工难度较大、墙体材料资源消耗较高等问题，项目通过对煤基固废粉煤灰和煤矸石基础科学及创新工艺两方面进行研究，在热力学研究的基础上，通过物相调控和结构重构研制出性能可控的新型多孔墙体材料，揭示粉煤灰和煤矸石物相组成、结构特征、造孔剂和添加剂之间的耦合关系；确定新型多孔墙体材料制备过程中多组元、多物相间转化迁移规律，获得多孔形成机制，建立多孔形成的动力学模型；研究并建立适用新型多孔墙体材料随机热导率模型。 本项目不仅为煤基固废高值化利用提供新的思路，而且可以推广到多种无机非金属废弃物利用领域，同时为零能耗绿色建筑围护结构大规模推广奠定理论基础。

中文关键词： 零能耗绿色建筑；硅铝酸盐固废；新型多孔墙体材料；物相结构调控；热导率

英文摘要： The existing thermal insulation materials can not satisfy the requirements of zero energy green building due to complex wall structure, the difficulty of construction, high wall material resource consumption, et.al. The present project aims at preparing the novel porous thermal insulation materials with controllable performance properties using coal-based solid waste such as fly ash and coal gangue, through the fundamental study and innovation of technology. Then, the present project will try to reveal the coupling relationships among phase composition, structural characteristics, pore-forming agent and additives. Based on these studies, the project will determine the transformation rules of multi-component and multi-phases during the preparation processes, as well as the porous formation mechanism and transformation of multi-components. Then, a dynamic model of porous formation was constructed. The project was also aiming at constructing a random thermal conductivity model using numerical simulation method, which are able to predict the novel porous multi-component insulation materials. These investigations not only provides the new approaches for utilization of coal-based solid wastes,but also spread to the utilization of other inorganic solid wastes. Meanwhile, it may establish the theoretical foundation for zero energy building popularization.

英文关键词： Zero energy green building;Aluminosilicate Solid Waste;Novel Porous Insulation Materials;Modification of Phases and Structure;Thermal Conductivity