| abstract |
A modified wood fiber-reinforced cement external wall panel is provided, which comprises the following ingredients: 60 to 100 parts of cement, 10 to 20 parts of calcium powder, 10 to 30 parts of silica powder, 2 to 10 parts of expanded perlite, 0.2 to 4 parts of modified wood fiber, 0 to 1.5 parts of polypropylene fiber, 20 to 40 parts of secondary pulverized coal ash, 0.2 to 0.4 parts of methyl cellulose, 0 to 8 parts of pulp, 0 to 6 parts of initial setting agent, 2 to 10 parts of gypsum whisker and 0.2 to 8 parts of mica sheet. The producing method for the modified wood fiber-reinforced cement external wall panel includes the following steps: blending the materials according to the proportions of the various raw materials firstly, and mixing the materials in a mixer secondly, and then kneading the mixed materials in a kneader while spraying water evenly, and extruding the kneaded materials by a extruder to form the product, and curing the product after pressure-steaming. |