... strength, 2) Fine insulation material and heat preservation, 3) Excellent sound inslulation, 4) Fireproof 5) Last for long time, 6) Pollution ... strength,2) Fine insulation material and heat preservation,3) Excellent sound inslulation,4) Fireproof5) Last for long time,6) Pollution free ... : cement 6.5%, raw lime 23%, flyash 68%, gypsum 3%, aluminum paste powder 350g/M3. 4 water and material rate 0 ...