Artificial pumice

Natural pumice is also called the pumice is a volcano of cellular glass acidic rocks, due to the porosity is more, relative density of water is small, can float on water, so its name. In nature often comes in white, gray, and without burnish. Relative density 0.3 ~ 0.4; Containing 65% ~ 75% and silica sesquioxide lead 9% ~ 20%. Often a crusty on the relatively dense lava. Can be used as lightweight concrete materials with thermal insulation, heat insulation, sound insulation, such as performance, also can be used as detergent, rubber filler, ceramics, glaze, enamel one kind of ingredient.

Artificial pumice is the pumice pieces, with a variety of materials, mixing into concrete, after casting, vibration, membrane, in which due to join all kinds of stone, make pebbles with stone of the simulation, the effect of copy, copy of gravel, imitation of fossil and other varieties, many styles can be made by cutting the polishing of the decorative plate, also can be in die casting out all kinds of material relief, its delicate degree approximation plaster casting effect, due to the light, only 0.04 g/cm3 density, less than 1/6 of the natural stone material, to reduce the quality of the building has a positive effect, is a new type of decorative stone, is also a kind of new building stone.