We offer gypsum in lumps and grinded as per the requirement. 0000001667 00000 n PermaBase Flex® BRAND Cement Board National Gypsum Company Drop In Specification Language (Specifier Note: The purpose of this guide specification language is to assist the specifier in correctly specifying cement backer boards and their installation. Even though gypsum weighs less, it still can have the same compressive strength as concrete. 1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. Here we give you brief comparison of Cement Plaster vs Gypsum Plaster: 01. Specifications; Sized Natural Gypsum Stone (CaSO4•2H2O.) Standard References. Manufacturers of Gypsum Cement Underlayment Browse companies that make Gypsum Cement Underlayment and view and download their free cad details, revit BIM files, specifications and other content relating to Gypsum Cement Underlayment as well as other product information formated for the architectural community. The grade of gypsum for soil reclamation has been deleted as a Durock® Brand Cement Board with EdgeGuard™ offers architects, builders and tile contractors a strong, water-durable tile backerboard for floors, walls, countertops, tub, shower areas and exterior finish systems. Gypsum concrete is intended for use in the construction of poured-in-place roof decks or slabs. 928 0 obj<>stream Visit Copyright Clearance Center, Historical Version(s) - view previous versions of standard, More C11.01 Standards 0000001217 00000 n It provides extremely low expansion properties, gradual set and a long period of plasticity. ASTM C 1396 - Standard Specification for Gypsum Board 11. TECHNICAL DATA SHEET NATURAL GYPSUM UNE 102031/ 82 Raw materials and description: The natural gypsum stone is a mineral formed by di-hidrated calcium sulphate. 2H 2 O. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard. Gypsum plays a very important role in controlling the rate of hardening of the cement, so its is generally termed as retarding agent of cement. Typical physical requirements of the various API classes of cement are shown in Table 5. Gypsum. C 1002, Specification for Steel Drill screws for the Application of Gypsum Panel Products or Metal Plaster Bases. Two classes, based on the compressive strength and density, are covered. ASTM C 1658 - Standard Specification for Glass Mat Gypsum Panels 13. The sand and cement are mixed at the site in different ratios. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date. Purity : 90%; Size: As per customers requirements When cement is mixed with water, it becomes hard over a period of time. When mixed with lime, its highly calcined, "dead-burned" white gypsum plaster produces durable, highly crack-resistant, smooth- and sand-float finishes. x���A 0ð4XF{\Gc���������z�C. Why Gypsum is added to Cement? Abstract This specification covers the minimum requirements for full-thickness interior gypsum plastering on gypsum, metal, masonry, or monolithic concrete bases designed or prepared to receive gypsum plaster. This specification covers mill-mixed gypsum concrete, consisting essentially of calcined gypsum and suitable aggregate, requiring the addition of water only at the job site. startxref Gypsum plastering is also a faster application method for internal surfaces, since it does not require time consuming water curing process. This is called setting of cement. This abstract is a brief summary of the referenced standard. ). Specification in the application of Gypsum Plaster You should ensure that the surface to be applied on is not only clean and dry but must be firm and dust free. US Cement Industry Announced Expansions: –2007 2,430M metric tons –2008 7,400M Metric tons –2009 2,550M Metric tons 0000004398 00000 n C 1325, Specification for Fiber-Mat Reinforced Non-Asbestos Cement Interior Substrate Sheets. Setting time is determined by the Vicat method. xref 0000000689 00000 n <<6228455036C9734D9DEEB7A60E164A35>]>> Gypsum, Micro Mix, Water Soluble Fertilizer, Di Ammonium …. Easy application for concrete floor patch repair on many different types of roof decks like gypsum roof decks. Chemical properties and physical requirements are summarized in Tables 3 and Table 4, respectively. x�b```b``���������ˀ ��@���q�=����A����ʼ�VYq �S�Jc``?��v��գ/u�q'��}���z�eZ����#�v�U� �;��3Z������8:��™0�´ D���@,v�� �3'�c�r�8�n���w2t0�3a�`8˨� �m@���W~�`�adL`hd��� It has an exceptionally hard, durable surface that can withstand prolonged exposure to moisture. Durock® Brand Cement Board with EdgeGuard™ offers enhanced, proprietary edge performance, preventing spinout and crumbling. ASTM C1629 - Standard Classification for Abuse-Resistant Nondecorated Interior Gypsum Panel Products and Fiber-Reinforced Cement Panels 8. 0000001339 00000 n It is mainly used for regulating the setting time of cement and is an indispensable component. Gypsum concrete is intended for use in the construction of poured-in-place roof decks or slabs. 04 30 16 - Cement Board Masonry Veneer >PDF : 06 16 43 - Gypsum Sheathing >PDF DOC : 07 50 00 - Roof Board ... NATIONAL GYPSUM | 704.365.7300 | TECHNICAL INFORMATION 1-800-NATIONAL 0000003487 00000 n Composition. endstream endobj 927 0 obj<>/Size 910/Type/XRef>>stream The specifier needs to edit these guide specifications to fit the needs of each specific project. 4. 0 0000006215 00000 n Lime. The documents listed below are referenced within the subject standard but are not provided as part of the standard. 0000010308 00000 n Mill-formulated and composed of specially calcined gypsum and wood chips or shavings. 0000007204 00000 n Mortar), UNSPSC Code 30111500(Concrete and mortars); 11111601(Gypsum), ASTM C317 / C317M-00(2019), Standard Specification for Gypsum Concrete, ASTM International, West Conshohocken, PA, 2019, www.astm.org. At 3 and 7 days, a maximum compressive strength was achieved for mixes containing 2% gypsum. Gypsum concrete is intended for use in the construction of poured-in-place roof decks or slabs. Link to Active (This link will always route to the current Active version of the standard. 0000009340 00000 n Gypsum plaster applied to the interior side of exterior walls of masonry or concrete shall be isolated from the exterior wall. For instance, portland cements and blended hydraulic cements for concrete in the U.S. conform to the American Society for Testing and Materials (ASTM) C150 (Standard Specification for Portland Cement), C595 (Standard Specification for Blended Hydraulic Cement) or C1157 (Performance Specification for Hydraulic Cements). Red Top® Brand Keenes Cement: Is retemperable; can be floated for an extended time period to provide a dense finish The sand cement plaster is a homogeneous mixture of Portland cement and sand with water. Put under calcination (120-160 ºC), it releases part of the crystal water, In its crystalline structure there are two water molecules by one of calcium sulphate. Gypsum is a mineral and is hydrated calcium sulphate in chemical form. Gypsum is often added to Portland cement to prevent early hardening or “flash setting”, allowing a longer working time. 1.2 The values stated in either inch-pound units or SI (metric) are to be regarded separately as the standard. 1.1 This specification covers mill-mixed gypsum concrete, consisting essentially of calcined gypsum and suitable aggregate, requiring the addition of water only at the job site. 1.2 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Two classes, based on the compressive strength and density, are covered. 910 19 Use it as an underlayment or backing surface in a variety of interior Products and Services / Standards & Publications / Standards Products, Active Standard ASTM C317 / C317M | Developed by Subcommittee: C11.01, Permissions to reprint documents can be acquired throughCopyright Clearance Center   Standard Specification for Cement , lime gypsum 1. 0000001019 00000 n $! 0000005284 00000 n Within the text, the SI units are shown in brackets. 0000002468 00000 n 3. Test method in this specification shall be performed in order to determine the physical properties of the gypsum concrete. 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