What is Gas-Forming AdmixturesPosted by beidoou on October 10th, 2019 Gas-forming admixtures is a kind of concrete admixtures which reacting in slurry, releasing gas and forming fine and uniform pore, this makes aerated concrete have porous structure.
The function of gas-forming admixtures in aerated concrete is to react in slurry, release gas and form fine and uniform pore, so that aerated concrete has porous structure. The density of basic components of aerated concrete is generally about 1.8-3.1g/cm3, while the volume density of aerated concrete products is usually 500-700 kg/m3, or even lower. Therefore, aerated concrete must have larger porosity. In general, the volume expansion of slurry is required to be nearly twice or more in the stage of slurry expansion. So it is required that the gas-forming admixtures can provide a large amount of gas which is insoluble or difficult to be soluted in water. Make gases form spherical bubbles with appropriate size and uniform size in slurry, and keep them stable without deformation and fracture, it is very important to have appropriate foam stabilizer besides the slurry itself with certain temperature and consistency. We call the material supplying the gas as the Gas-Forming Admixtures and the material stabilizing the bubbles as the Foam Stabilizer. Like it? Share it! More by this author |
