| 摘要 |
<p>The invention relates to a composite material with heat, sound and fire insulation properties and to a process for preparing the same. According to the invention, the material comprises 9.6...10.7% Portland cement, 63.95...68.4% expanded pearlite, 1...2% ground natural bentonite, 10...11% water, 3.5...12 % ground rhyolite tufa, 3...3.5 % styrene acrylic copolymer, 0.4...0.8% boric acid and 0.05...0.1 % calcium cyanide, the percentage being expressed by mass.</p> |
