This specification covers molded glass fiber reinforced gypsum (GRG) parts, which are nonload-bearing, thin-shell, ornamental shapes for architectural embellishment of interior building construction. GRG parts shall be produced using the same materials used to make the composites in conformance with the referenced specification. GRG parts shall be manufactured from the mixed slurry or alpha gypsum cement, potable water and additives, and glass fiber reinforcement using either the hand lay-up or the spray-up process in a mold. GRG parts shall be produced according to approved shop drawings. Shop drawings shall specify part dimensions, quantities, recommended attachment points and methods, reinforcements, embedments, and tolerance. The material shall conform to the required mechanical properties and to the specified dimensions and tolerances of GRG parts.
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1.1 This specification covers molded glass fiber reinforced gypsum (GRG) parts, which are nonload-bearing, thin-shell, ornamental shapes for architectural embellishment of interior building construction.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.3 The information presented refers to the molded surface of the part.
1.4 The text of this standard references footnotes, which provide explanatory material. These footnotes shall not be considered as requirements of the standard.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
C11 Terminology Relating to Gypsum and Related Building Materials and Systems
C1355/C1355M Specification for Glass Fiber Reinforced Gypsum Composites
glass fiber reinforced gypsum; glass fiber reinforced gypsum composite; glass fiber reinforced gypsum parts; GRG; GRG composites; GRG parts; GRG (glass-fiber-reinforced gypsum) materials; Gypsum products--specifications;
ICS Number Code 91.060.10 (Walls. Partitions. Facades); 91.100.10 (Cement. Gypsum. Lime. Mortar)
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