C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
6/219
C04B 28/24 (2006.01) C04B 28/34 (2006.01)
Patent
CA 1182608
ABSTRACT OF THE DISCLOSURE: The invention relates to a lightweight building material comprising expanded perlite as an additive and a bonding agent structure consisting of an alkalisilicate and containing pores formed by foaming and/or expansion. The pore content which results from the pore structure of the bonding agent amounts to 85 to 99% by volume, with bulk densities of 40 to 200 kg/m3, and strengths of 0.01 to 0.5 N/mm2. The invention also relates to a method for producing a lightweight building material mortar mixes of the following composition: 70 to 85% by volume of perlite (bulk density from 20 to 150 g/l. grain-size from 0 to 6 mm) 23.0 to 2.5% by volume of water-glass (38 degrees B?) 25.0 to 5.0% by volume of water 1.0 to 0.10% by volume of hardener 2.0 to 0.05% by volume of air-entrainer
409010
Car Martin
Johnson Douglas S. Q.c.
Otavi Minen Ag
LandOfFree
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