Flexible concrete
AssigneeNederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
InventorPanagiota Pipilikaki
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Abstract
The invention relates to a cement powder blend comprising, based on total weight 45-90 wt. % non-Portland cement; 5-30 wt. % polyvinylalcohol; the blend having a content of 0-25 wt. % siliceous fly ash; and 0-25 wt. % limestone, preferably polyvinylalcohol having a size distribution with D10=170-270 μm, D50=370-450 μm, D90=690-850 μm and D100=1000-1300 μm. Further the invention relates to concrete composed of a blend according to the invention and aggregate.
Claims28
A cement powder blend comprising, based on total weight
- 45-90 wt. % non-Portland cement;
- 5-30 wt. % polyvinylalcohol;
- the blend having a content of
- 0-25 wt. % siliceous fly ash;
- and
- 0-25 wt. % limestone, wherein the polyvinylalcohol has a size distribution with D10=170-270 μm, D50=370-450 μm, D90=690-850 μm and D100=1000-1300 μm.
A cement powder blend comprising, based on total weight
- 45-90 wt. % non-Portland cement;
- 5-30 wt. % polyvinylalcohol;
- the blend having a content of
- 0-25 wt. % siliceous fly ash;
- and
- 0-25 wt. % limestone, wherein the polyvinyl alcohol has an ester value in the range of 1-250 mg KOH/g, as determinable by EN-ISO 3681:1998 and/or wherein the polyvinyl alcohol is a polyvinyl alcohol of which a 4% aqueous solution has a viscosity, at 20° C., as determined by EN-ISO 12058-1:2002, in the range of 1-40 mPa·s.
Dependencies are inferred from the claim text.