Hollow blocks with integral heat insulation - using expanded polystyrene with adhesive mixed with cement for cavity filling

Hollow blocks with an integrated heat insulating layer are produced by filling their cavities by a free-running filler. This filler consists pref. of expanded polystyrene particles with a dia. of 0.5-6 mm and a bulk density of 8-25 g per litre. This is wetted in a concrete mixer with an aq. soln. of...

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Bibliographic Details
Main Authors ERNST,. KRUECKAU,FRITZ, HOHWILLER,FRIEDER
Format Patent
LanguageEnglish
German
Published 30.10.1980
Edition3
Subjects
BUILDING
BUILDING MATERIALS
CEILINGS
FIXED CONSTRUCTIONS
FLOORS
GENERAL BUILDING CONSTRUCTIONS
INSULATION OR OTHER PROTECTION OF BUILDINGS
PERFORMING OPERATIONS
ROOFS
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
STRUCTURAL ELEMENTS
TRANSPORTING
WALLS, e.g. PARTITIONS
WORKING CEMENT, CLAY, OR STONE
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Summary:Hollow blocks with an integrated heat insulating layer are produced by filling their cavities by a free-running filler. This filler consists pref. of expanded polystyrene particles with a dia. of 0.5-6 mm and a bulk density of 8-25 g per litre. This is wetted in a concrete mixer with an aq. soln. of hydroxymethylcellulose at a rate of 0.5-5 wt.% dry matter, referred to polystyrene. Finally, 5-25 kg of cement, referred to 100 litres to foam, are added and mixed before the mixt. is poured in the cavities. This is a sample process which retains a homogenous structure and does not interfere with the handling of the blocks.
Bibliography:Application Number: DE19792914647