Environment-friendly calcium silicate board produced based on slag powder and preparation method of environment-friendly calcium silicate board

The invention discloses an environment-friendly calcium silicate board produced on the basis of slag powder. The environment-friendly calcium silicate board is prepared from the following raw materials in parts by mass: 25-39 parts of slag powder, 27-41 parts of slaked lime, 20-26 parts of quartz powder and 8-14 parts of wood fibers. The preparation method comprises the following steps of: weighing the raw materials according to proportions; adding water into the wood fibers for pulping treatment; adding the weighed slag powder, slaked lime and quartz powder, uniformly mixing the materials; pouring an obtained mixture into a mold; carrying out suction filtration molding to prepare a wet blank; carrying out autoclaved curing after pre-curing; naturally cooling the wet blank after finishingthe autoclaved curing; and taking out an obtained plate from a kettle, drying the board and cutting the board to obtain the environment-friendly calcium silicate board. The slag powder and the quartzpowder are used as siliceo