Abstract: An enclosed container for separately containing at least two reactive materials is provided. The container includes (a) a film arranged to form a first elongated compartment and a second elongated compartment, wherein the film comprises polypropylene and/or polyethylene; (b) a first reactive material contained in the first elongated compartment; and (c) a second reactive material contained in the second elongated compartment. The first reactive material is not in contact with the second reactive material. The first and second reactive materials are reactants in a chemical reaction.

Abstract: Provided is a novel rock bolt anchoring system and a method of use thereof. The reactive grouting system, comprises: (a) a resin component containing an unsaturated polyester resin; and (b) a catalyst component separated from the polyester resin. The catalyst component comprises a catalyst effective to cross-link the polyester resin and a filler having a proportion of particles having a size of from 0.01 to 100 (preferably from 0.5 to 50 .mu.m) and a mean particle size of 1 to 5 .mu.m (preferably 3 to 5 .mu.m). The system has particular applicability in the anchoring of mine bolts, facilitates installation of a reinforcing member, and is exceptionally fast in and strong upon curing.

Abstract: A sprayable composition for use as a sealant or coating for various surfaces, especially concrete block walls, is disclosed which includes water soluble silicate, water, cellulose fibers, clay and limestone. The cellulose fibers enable the sealant to have a sprayable consistency and good thixotropy when the sealant composition is sprayed on a vertical surface or a ceiling. A method of using the sealant composition also is disclosed.