A new type of building material based on waste paper
The basis for the production of cellulose fiber lightweight concrete is a fiber suspension obtained mainly from waste paper. The dominant constituent in waste paper and similar secondary fiber materials is cellulose fibers. When combined with cement, the result is a composite material designated CFLC (Cellulose-Fiber-modified Lightweight Concrete), in which a number of positive interactions between the fibers of plant origin and the inorganic binder are noted. The innovation of this material is seen in the fact that the cellulose fibers perform a dual function as lightweight aggregate and reinforcement due to their hollow cylinder-like shape. The CFLC thus combines the properties of a lightweight and a fiber concrete and can therefore be characterized with the term "lightweight concrete based on hollow microfibers".