Abstract: The present invention provides for twisted and rectangular dice forms of sheeted fibrous materials and a process for making the dice forms. Specifically, the invention teaches the use of dice forms and sheet materials in construction and cementitious materials.

Abstract: The present invention is directed to a cellulose fiber reinforced cementitious material having cement; optionally sand and/or aggregate; and chemically purified cellulose fibers with a Zero-Span Stability Ratio or precent cellulose content of about 90 percent or greater. The invention may also include one or more synthetic or natural fibers, and may also include latex.

Abstract: The present invention relates to a fiber-reinforced cement based or cementitious material, and process for making, where the reinforcing fiber is a chemically treated cellulose or non-cellulose fiber. The fiber reinforced cementitious material includes (i) cement, (ii) optionally, sand, aggregate, or sand and aggregate, and (iii) chemically treated fibers having a polyvalent cation content of from about 0.1 weight percent to about 5.0 weight percent based on the dry weight of the treated fibers. The present invention further provides for a fiber reinforced cementitious material having a weak acid content of from about 0.5 weight percent to about 10 weight percent based on the dry weight of the treated fibers.