| abstract |
The invention discloses silicon dioxide aerogel foaming cement, comprising the following components in parts by mass: 30-65 parts of Portland cement, 10-30 parts of silicon dioxide aerogel, 4-10 parts of micro silicon powder, 2-4 parts of coagulant, 2-4 parts of water reducing agent, 4-8 parts of foam stabilizer, 5-15 parts of foaming agent, and 5-25 parts of coal ash. Compared with the prior art, the silicon dioxide aerogel foaming cement provided by the invention has a heat conductivity coefficient of 0.080-0.095W/(m.K), a sound absorbility of 0.09-0.19 percent, a dry volume density of 250-500kg/m<3> and a compressive press strength of 3.5-5.0Mpa, and has better waterproofness, low percentage of contraction, long service life, simple construction and easy operation. |