Abstract

A composition includes an admixture of a cementitious component and a cellulosic component. The cellulosic component includes a cellulosic fibrous material and water. The admixture is suitable for mixing with a second amount of water to form a hardened material A method includes reducing a cellulosic fiber material to produce a fiber fragment material, treating the fiber fragment material, and rinsing the treated fiber fragment product with water to form a rinsed fiber fragment material. Treating the fiber fragment material Includes admixing the fiber fragment material and water to form an admixture, heating the admixture, agitating the admixture, and separating a treated fiber fragment product from the admixture. The method is effectively controlled so that the rinsed fiber fragment material is suitable for reacting with a cementitious component to form a hardened material.

IPC Classes  ?

• C04B 16/02 - Cellulosic materials
• C04B 18/24 - Vegetable refuse, e.g. rice husks, maize-ear refuseCellulosic materials, e.g. paper
• C04B 18/26 - Wood, e.g. sawdust, wood shavings
• C04B 28/04 - Portland cements

Abstract

This invention is a composition comprising an admixture of one or more cementitious components) and one or more cellulosic component The cellulosic components comprise a defined size and a defined aspect ratio and an amount of water which is within a range effective to impart characteristic in a final hardened product Importantly, the present invention allows the reduction/elimination of the aggregate and sand content of concrete and similar material without loss of associated properties. Unexpectedly, there are significant improvements of some of the properties.

IPC Classes  ?

• C04B 7/00 - Hydraulic cements