Light and high-strength wallboard made from fiber reinforced concrete and preparation method thereof

Abstract

The invention relates to a light and high-strength wallboard made from fiber reinforced concrete which takes 30-40% of cement, 25-35% of rock flour, 20-30% of pulverized fuel ash, 5-9% of plant fiber, 1-3 per mill of concrete fiber, 1-1.5 per mill of white emulsoid, 1-1.5 per mill of acid amides, 3-5 per mill of cellulose calcium and 1-1.5 per mill of calcium stearate as raw materials. The plant fiber is paper fiber and/or straw fiber. Water is added to mix all the materials, so that the mixture obtains very good plasticity; then the mixture gets through the vacuum extruder and is squeezed out through a die orifice, forming a plate with a section; then the plate is cut into plates with a certain length, which are conveyed to a curing room for curing and molding. With the preparation method of the invention adopted, production processes can be reduced, waterproof and heat-preservation effect can be bettered, production cost can be lowered and pollution sources can be precluded. In addition, wasted paper at home can be used to replace the wasted paper imported from abroad so as to obtain cellulose produced by deliberation decomposition treatment, thus improving use ratio of straw and enjoying remarkable economic and social benefits.

Description

technical field [0001] The invention relates to a wallboard manufacturing technology, in particular to a fiber concrete light-weight high-strength wallboard. The invention also relates to a preparation method of the wallboard. Background technique [0002] At present, counterparts at home and abroad use formed boards soaked in latex glue solution to achieve waterproof and thermal insulation effects. Its disadvantage is the increase of production cost and the complexity of production process. As waste paper fibers for reinforcement, domestic manufacturers of fiber concrete light-weight and high-strength square-hole wall poles all need to import waste newspapers from abroad, and use them as paper fibers after processing, which is too costly. In addition, with the improvement of people's life and the change of traditional lifestyle, the utilization rate of crop straw in rural areas of our country is low. After farmers take back the grain, they discard the straw or directly bu...

AI Technical Summary

Problems solved by technology

Its disadvantage is the increase of production cost and the complexity of production process

As waste paper fibers for reinforcement, domestic manufacturers of fiber concrete light-weight and high-strength square-hole wall poles all need to import waste newspapers from abroad, and use them as paper fibers after processing, which is too costly

In addition, with the improvement of people's life and the change of traditional lifestyle, the utilization rate of crop straw in rural areas of our country is low. After farmers take back the grain, they discard the straw or directly burn it in the field, which will not only cause fires, but also cause other accidents. , and cause air pollution