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US 12,398,071 B2Granted
Building materials and methods of manufacturing same
AssigneeKenaf Ventures Ltd
InventorsAvishay Morag, Zvi Cohen
Life of this patent
Estimating the term…
Abstract
A plant enhanced concrete dry mix comprising (WAV) at least 137.5 parts Kenaf based plant material, derived from Hibiscus cannabinus, which is surface treated with sodium silicate (water glass); not more than 122.2 parts sand and not more than 189.4 parts cement. The plant material may be Kenaf branches that contain a soft core and/or heart surrounded by fibrous material.
Claims14
A masonry block comprising
- (i) cement and sand and/or gravel, and
- (ii) at least 15.6% kenaf plant derived material by weight
- wherein the masonry block has a specific gravity of 650-790 Kg/m3 and a compressive strength of at least 6.5 Mpa;
- and
- wherein said Kenaf derived plant material has a particle size distribution (P(D)) as determined by P(D)=(D/Dmax)q having a range of 0.5≤q≤1.4, where
- D represents a given particle diameter;
- Dmax represents a maximum particle diameter;
- P(D) represents a cumulative fraction that consists of particles with diameters less than or equal to D;
- and
- q is a parameter characterizing distribution of particle sizes.
7 more elements
Dependencies are inferred from the claim text.