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A platform for research: civil engineering, architecture and urbanism
Factors affecting the stability of bubble in autoclaved aerated concrete
Defects in autoclaved aerated concrete (AAC) products are often caused by gassing formation and bubble stability. In order to eliminate these defects and improve product quality, the factors affecting the bubble stability in AAC slurry in the production, such as the viscosity, water‐solid ratios, temperature of the slurry and four kinds of foamstabilizer was studied. The results showed that the viscosity of the slurry decreased by power function with the increase of the water‐solid ratios. The maximal rising volume first increases and then decreases with increase of water‐solid ratios, which means that there is an optimal water‐solid ratios here. The gassing velocity of aluminum is accelerated by temperature increase and the gassing time is shorted, but meanwhile the bubble stability becomes worse. The bubble stability of slurry is increased by increase in the use of foam stabilizer, but the gassing velocity is suppressed severely at the same time. The addition of four foam stabilizers should not exceed 0.1%. The research results have great significance for the improvement of AAC quality and reasonable application of foam stabilizer.
Factors affecting the stability of bubble in autoclaved aerated concrete
Defects in autoclaved aerated concrete (AAC) products are often caused by gassing formation and bubble stability. In order to eliminate these defects and improve product quality, the factors affecting the bubble stability in AAC slurry in the production, such as the viscosity, water‐solid ratios, temperature of the slurry and four kinds of foamstabilizer was studied. The results showed that the viscosity of the slurry decreased by power function with the increase of the water‐solid ratios. The maximal rising volume first increases and then decreases with increase of water‐solid ratios, which means that there is an optimal water‐solid ratios here. The gassing velocity of aluminum is accelerated by temperature increase and the gassing time is shorted, but meanwhile the bubble stability becomes worse. The bubble stability of slurry is increased by increase in the use of foam stabilizer, but the gassing velocity is suppressed severely at the same time. The addition of four foam stabilizers should not exceed 0.1%. The research results have great significance for the improvement of AAC quality and reasonable application of foam stabilizer.
Factors affecting the stability of bubble in autoclaved aerated concrete
Su, Yufeng (author) / Wei, Bolei (author) / Sun, Xuan (author) / Zhang, Hui (author)
ce/papers ; 2 ; 181-186
2018-09-01
6 pages
Article (Journal)
Electronic Resource
English
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