High-strength low-absorption cement base plate slurry and method for making same

The present invention belongs to the building material technology field, in particular to relate to a cement base plate material with high-intension and low water-absorbing capacity and the corresponding preparation method. The mortar material uses a technical process of a self-compact active powder concrete to be cast into a plate with the thickness from several mm to more than 10mm. The present invention is made of cement, silicon ash, quartz powder, sand, water reducer, crack-proof agent and water according to the weight ratio. The present invention uses the new type water reducer and the rational weight ratio to decrease the water consumption and to make the flow expanding degree for the prepared cast mortar up to 255mm (flow degree of the mortar desk, sectioned cone circular mould, not being vibrated); and then the present invention can cast the plate with the required thickness directly without needing vacuum dehydration and pressure. The prepared plate is compact, with the water-absorbing capacity less than 2 percent that is far lower than that of each fibre strengthened cement plate in the prior market (about 20 percent). The folding strength can be adjusted by changing the content of the strengthened fibre, which can be up to 15-25MPa. The materials used in the present invention all are common industrial materials; so the present invention can simplify the manufacturing process, decrease the manufacturing cost greatly and enhance the product quality. The present invention can be widely used.