Patent ID: 9724853
Date: 2017-08-08
CPC Classifications: B28B,B29C,B29K,B29L,C04B,E04C,Y02W

Claim:
1. A process for forming a structural concrete product by: a) providing a cellulose fibre-containing waste crumble and containing a known amount of water which is in the range of from 10% to 50% based on the total weight of the waste by partial dewatering of a fibre-and-water pulp, wherein the fibre-and-water pulp is derived from recycled paper or cardboard or from paper production; b) mixing the cellulose fibre-containing waste crumble with a cement in particulate form and with additional filler selected from sand, glass, ash and combinations thereof to distribute the cement particles and cellulose fibre and form a granular base mixture, wherein the ratio of cellulose fibre to cement is at least 1 in terms of dry weights; c) filling the granular mix into a form; d) applying a compressive force on the granular base mixture in the form so as to increase the density of the formed material; and e) allowing the formed and compressed material to cure and harden to form a structural material.