Research on preparation of porous materials by fly ash and corn fiber

The study was based on fly ash of Yaojie area as raw material. Corn fiber and saccharfying sludge were used as porogen and binder. By selecting different rations of saccharfying sludge and fly ash, the paper discussed the impact on the properties of porous materials. The result showed that:(1)saccharfying sludge and corn fiber both had pore forming role, the pore-forming effect was obvious; (2)the optimum proportion of fly ash and saccharfying sludge ranges from 4:6 to 8:2; (3)the porosity and water absorption of the sintered were inversely proportional to the amount of fly ash, and were proportional to the density; (4)when the adding of corn fiber was 0.4%,the optimum porosity was 58.12% and the water absorption was 49.31%.