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1. (WO2017032412) LIGHTWEIGHT CONCRETE AND MANUFACTURING METHOD

Pub. No.:    WO/2017/032412    International Application No.:    PCT/EP2015/069500
Publication Date: Fri Mar 03 00:59:59 CET 2017 International Filing Date: Thu Aug 27 01:59:59 CEST 2015
IPC: C04B 38/10
C04B 111/28
C04B 111/40
Applicants: SIRASO AB
Inventors: FOSSGAARD, Ragnar
OLSSON, Sören
GUSTAFSSON, Sigvard
Title: LIGHTWEIGHT CONCRETE AND MANUFACTURING METHOD
Abstract:
Lightweight concrete that is composed of a mixture of cement, low-density aggregate, water, surfactants, resins and foams pre-manufactured with the mixer or produced by injecting water, characterised in that the final density is within a range of between 250 kg/m3 and up to 1200 kg/m3, the low-density aggregate being pumice stone, volcanic material or baked clay; furthermore, for a density of between 300 kg/m3 up to 1 100 kg/m3 it offers resistance to compression of between 0.9 and 14.3 MPa. Lightweight concrete is ideal for usage in panels for flooring, ceiling and walls, is compatible with all types of finishing, causes minimum waste levels on site, is easy both to transport, and to assemble in elements and structures, and has good fire-resistance, low thermal conductivity, waterproofing and soundproofing.