A Study of Effect Factors on Sodium Silicate Based Expanded Perlite Insulation Board Strength

Abstract:

Because of low strength, the expanded perlite insulation boards application in building energy saving is restricted. This paper discuss change rules of the expanded perlite insulation board apparent density and mechanical strength with adjusting the amount of sodium silicate, pressing pressure, heating system. It turned out that good thermal insulation performance and high strength expansion perlite insulation board is prepared by mass ratio of 2.5:1 of 30% of the content of solid sodium silicate solution to expanded perlite, 0.38MPa of pressing pressure and 105°C condition of heating temperature.

• Periodical: Applied Mechanics and Materials (Volumes 405-408)
• Pages: 2771-2777
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.405-408.2771
• Online since: September 2013
• Authors: Ying Liang Tian, Xian Long Guo, De Long Wu, Shi Bing Sun
• Keywords: Expanded Perlite, Mechanical Strength, Pressing Pressure, Reheating Schedule, Sodium Silicate

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