Gypsum - Wikipedia
Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO42H2O. It is widely mined and is used as a fertilizer and as the main constituent in many forms of plaster, blackboard or sidewalk chalk, and drywall. Alabaster, a fine-grained white or lightly tinted variety of gypsum, has been used for sculpture by many cultures including Ancient Egypt, Mesopot
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Gypsum Mineral Uses and Properties - Geology
Gypsum uses include: manufacture of wallboard, cement, plaster of Paris, soil conditioning, a hardening retarder in portland cement. Varieties of
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2018 INTERNATIONAL BUILDING CODE (IBC) ICC DIGITAL CODES
The minimum thickness of vertically erected studless solid plaster partitions of 3 / 8 -inch
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Gypsum - Minerals Education Coalition
Gypsum is commonly associated with rock salt and sulfur deposits. It is processed and used as prefabricated wallboard or as industrial or building plaster, used in cement manufacture, agriculture and other uses. Type Mineral Mineral Classification Sulfate Chemical Formula CaSO42H2O Streak White Mohs Hardness 1.5–2 Crystal System Monoclinic Color
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Gypsum - Wikipedia
Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO 4 2H 2 O. It is widely mined and is used as a fertilizer and as the main constituent in many forms of plaster,
More2018 INTERNATIONAL BUILDING CODE (IBC) ICC DIGITAL
The minimum thickness of vertically erected studless solid plaster partitions of 3 / 8 -inch (9.5 mm) and 3 / 4 -inch (19.1 mm) rib metal lath, 1 / 2 -inch-thick (12.7 mm) gypsum lath, gypsum board or gypsum panel product shall be 2 inches (51 mm). SECTION2505 SHEAR WALL CONSTRUCTION 2505.1Resistance to shear (wood framing).
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Cement Standards and Concrete Standards - Standards Products ...
C937-16 Standard Specification for Grout Fluidifier for Preplaced-Aggregate Concrete C942/C942M-21 Standard Test Method for Compressive Strength of Grouts for Preplaced-Aggregate Concrete in the Laboratory C1181/C1181M-17 Standard Test Methods for Compressive Creep of Chemical-Resistant Polymer Machinery Grouts
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11.16 Gypsum Manufacturing - US EPA
EMISSION FACTORS FOR GYPSUM PROCESSINGa EMISSION FACTOR RATING: D Factors represent uncontrolled emissions unless otherwise specified. of output rate. All emission factors are lb/tonSCC = Source Classification Codes. NA = not applicable. ND = no data.Table 11.16-2 (cont.).
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Standard Classification for Abuse-Resistant Nondecorated
1.1.1 This standard is a method of classifying gypsum panel product performance and is not intended to classify systems for abuse resistance. 1.2 The values stated in inch-pound and SI (metric) units are to be regarded separately as standard. Within the text, the SI units are shown in brackets.
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Sheetrock® Brand Firecode® X Panels - USG
Overview. Sheetrock® Brand Firecode® X Panels (UL Type SCX) are 5/8 in. (15.9 mm) Type X gypsum panels that feature a noncombustible gypsum core that is encased in 100% recycled face and back papers that form a
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PROPRIETARY GYPSUM PANEL PRODUCTS FOR USE IN UL
5/8” Gold Bond® Brand Fire-Shield® Gypsum Board, Type X 5/8” Gold Bond® Brand Fire-Shield® Exterior Soffit Board, Type X 5/8” Gold Bond® Brand Hi Abuse® XP® Fire-Shield® Gypsum Board, Type X 5/8” Gold Bond® Brand Sta-Smooth® Fire-Shield® Gypsum Board, Type X 5/8” Gold Bond® Brand Fire-Shield® Gypsum Sheathing, Type X
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USG SHEETROCK BRAND MOLD TOUGH VHI FIRECODE X
Meet ASTM C1629 classification for abuse-resistant gypsum panels Classified as a Class A Interior Finish Material per Section 803.1 of the International Building Code® (IBC®) UL Classification as to fire resistance, surface-burning characteristics and noncombustibility
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Classification of gypsum - SlideShare
Classification of gypsum Impression plaster (Type I) *seldom used* Model plaster (Type II): used for Diagnostic cast Articulation of stone cast Art portion of working cast Flasking procedure for acrylic
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Sheetrock® Brand Mold Tough® VHI Firecode® X Panels - USG
The panels are UL Classified for fire resistance and can be used in any UL Design in which Type AR panels are listed. On the face, along the long edge of each panel, the UL Type Designation is printed for easy identification by building inspectors. Main Features 5/8 in. (15.9 mm) Type X wallboard with moisture, mold and abuse resistance
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What are the recommended levels of finish?
Understanding the Six Finish Levels for Drywall, Glass Mat and Gypsum Panels The recommended levels of finish are as follows, as stated in the Gypsum Association publication, GA-214 “Recommended Levels of
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(PDF) Enabling effective gypsum recovery management by using
PDF On Mar 14, 2018, Ulrich Kral and others published Enabling effective gypsum recovery management by using the UN Framework Classification for Resources Find, read and cite all the research ...
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Recommended Specification: Levels of Gypsum Board Finish
Levels of Gypsum Board Finish The Finishing and Decorating of Gypsum Board Surfaces I. For many years contract documents describing how gypsum board walls and ceilings should look prior to final decoration with paints and other wallcoverings have included nonspecific terms such as “industry standards” and “workmanlike finish.” And, for ...
MoreGypsum - Wikipedia
Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO 4 2H 2 O. It is widely mined and is used as a fertilizer and as the main constituent in many forms of plaster,
More2018 INTERNATIONAL BUILDING CODE (IBC) ICC DIGITAL
The minimum thickness of vertically erected studless solid plaster partitions of 3 / 8 -inch (9.5 mm) and 3 / 4 -inch (19.1 mm) rib metal lath, 1 / 2 -inch-thick (12.7 mm) gypsum lath, gypsum board or gypsum panel product shall be 2 inches (51 mm). SECTION2505 SHEAR WALL CONSTRUCTION 2505.1Resistance to shear (wood framing).
MoreCement Standards and Concrete Standards - Standards Products ...
C937-16 Standard Specification for Grout Fluidifier for Preplaced-Aggregate Concrete C942/C942M-21 Standard Test Method for Compressive Strength of Grouts for Preplaced-Aggregate Concrete in the Laboratory C1181/C1181M-17 Standard Test Methods for Compressive Creep of Chemical-Resistant Polymer Machinery Grouts
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ASTM-C1396 Standard Specification for Gypsum Board
1.1.9 Gypsum ceiling board, designed for use on interior ceilings with framing spaced not more than 24 in. [610 mm] on center and that affords a surface suitable to recieve water-based texture and other decoration. This product is also suitable for use on interior walls.
More11.16 Gypsum Manufacturing - US EPA
EMISSION FACTORS FOR GYPSUM PROCESSINGa EMISSION FACTOR RATING: D Factors represent uncontrolled emissions unless otherwise specified. of output rate. All emission factors are lb/tonSCC = Source Classification Codes. NA = not applicable. ND = no data.Table 11.16-2 (cont.).
MoreWhat are the recommended levels of finish?
Understanding the Six Finish Levels for Drywall, Glass Mat and Gypsum Panels The recommended levels of finish are as follows, as stated in the Gypsum Association publication, GA-214 “Recommended Levels of
MorePROPRIETARY GYPSUM PANEL PRODUCTS FOR USE IN UL
5/8” Gold Bond® Brand Fire-Shield® Gypsum Board, Type X 5/8” Gold Bond® Brand Fire-Shield® Exterior Soffit Board, Type X 5/8” Gold Bond® Brand Hi Abuse® XP® Fire-Shield® Gypsum Board, Type X 5/8” Gold Bond® Brand Sta-Smooth® Fire-Shield® Gypsum Board, Type X 5/8” Gold Bond® Brand Fire-Shield® Gypsum Sheathing, Type X
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Sheetrock® Brand Firecode® X Panels - USG
The panels are UL Classified for fire resistance and can be used in any UL Design in which Type SCX panels are listed. On the face along the long edge of each panel, the UL Type Designation is printed for easy
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CDC - NIOSH Pocket Guide to Chemical Hazards - Gypsum
Calcium(II) sulfate dihydrate, Gypsum stone, Hydrated calcium sulfate, Mineral white [Note: Gypsum is the dihydrate form of calcium sulfate; Plaster of Paris is the hemihydrate form.] White or nearly white, odorless, crystalline solid.
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Classification of gypsum - [PPT Powerpoint] - vdocument
Classification of gypsum Impression plaster (Type I)*seldom used* Model plaster (Type II): usedfor Diagnostic cast Articulation of stone cast Art portion of working cast Flasking procedure foracrylic dentures (cast end)The mix produces a weak castcompared to dental stone. ItsImpression (negative replica), pouredavailable is fast
More(PDF) Enabling effective gypsum recovery management by using
PDF On Mar 14, 2018, Ulrich Kral and others published Enabling effective gypsum recovery management by using the UN Framework Classification for Resources Find, read and cite all the research ...
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UL Wall Assemblies, Fire Rated Wall Designs USG
USG provides resources here for our UL wall assemblies for seamless integration into any construction project. These wall assembly files are used for planning and estimation purposes for many UL wall types, such as fire-rated wall assemblies.
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Architectural System Specification Guide - Interior
Sound Transmission Classification: For gypsum board assemblies with STC ratings, provide materials and construction identical to those tested in assembly indicated according to ASTM E90 and classified according to ASTM E413 by a qualified independent testing agency.
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Assessment of new spectral indices and multi-seasonal ASTER
The objectives of this paper are (1) to assess the SWIR absorption feature for gypsum mapping based on published spectral library and ASTER image reflectance, and to design new gypsum indices (the GI 1 and GI 2), eliminating the interference of hydroxyl-containing minerals for gypsum mapping; (2) to analyze seasonal reflectance
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