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Leech Shijie Shao:
1, the nature and structure of vermiculite
vermiculite chemical formula Mg x (H 2 O) (Mg 3-x [AlSiO 3 O 10] (OH) 2), The water is a magnesium aluminum silicate secondary metamorphic minerals, like mica shape, usually black (gold) or mica weathering by hydrothermal alteration is made, its expansion when heated water loss was bending shape form exactly like leeches, so called vermiculite.
vermiculite chemical formula (Mg, Ca) 0.7 (Mg, Fe, Al) 6.0 [ (Al, Si) 8.0] (OH4.8H2O)
by stages into vermiculite vermiculite ore and expanded vermiculite, by color vermiculite can be divided into gold, silver white vermiculite, white vermiculite.
vermiculite ore roasting at high temperatures the rapid expansion of its volume can be 8-20 times, after expansion of the proportion of 130-180kg/m3, has strong insulation properties.
2, should be used leading the main domain to pedestrians using
building : lightweight concrete lightweight aggregate material ( wall light powder, light mortar )
heat-resistant materials, wall materials, fireproof board, fire mortar, bricks
insulation, acoustic insulation materials underground pipes, pipe insulation materials, greenhouse, indoor and tunnels built, the walls and ceilings of public places
Metallurgical : steel coating materials, iron, cast steel slag high-rise building cladding material, vermiculite bulk
agriculture, forestry, garden : horticultural aspects of golf course turf, seed preservation agent, soil conditioning agents, wetting agents, plant growth agents, feed additives
marine fishing industry fishing erbium
others: sorbent, filter aid, the activity of chemicals and fertilizer carrier, waste water treatment, oil water absorption, cigarette filters, explosive density regulator
