Nigeria is rich is solid mineral resources, such as: Kaolin, gypsum, mica, clay, tantalite, iron ore, gemstone, silica sand.
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Recycling concrete &building rubble is not only able to bring profit to investors, but also good for environment protection.
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By absorbing the advanced technology from the world, we researched and designed PF series impact crusher.…
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Base on the plentiful experience of producing and marketing of impact crusher, Sofol R&D institution…
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Adopting technology from the world, PY Series spring cone crusher has an excellent performance in secondary…
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The vibrating screen is a kind of sieving equipment of international advanced level, developed by our…
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Sofol VSI Series vertical shaft impact crusher is designed by reputed German expert of Sofol and every…
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Gypsum concrete is placed at a minimum of 2 inches above the formboard either fiberglas formboard or sheetrock formboard. Various sub‐purlins were used in the system. They …
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Examples of Gypsum Roof Decks. Click on an image to enlarge. Gypsum or lightweight concrete deck. Gypsum or lightweight concrete deck. Gypsum or lightweight concrete deck. Gypsum deck from underneath. The top of the metal banded material will look like white sheet rock. Old bald asphalt roof over wet fiberboard over asphalt/felts and the …
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A concrete roof deck that can be combined with other noncombustible materials to create 1- and 2-hour fire-rated roof-ceiling assemblies. The only cementitious structural panel approved by Factory Mutual (FM) - FM Approval Standard 4472. ... Agricultural Gypsum Products Agricultural Gypsum Products. All Agricultural Gypsum Products ...
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The TECTUM roof deck offers a single-step easy installation, high insulation values and acoustical noise reduction in the pool area.
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Tectum® I structural acoustic roof deck provides excellent sound absorption, a thermal barrier for field-applied plastics, and is compatible with a wide variety of insulation …
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NRDCA 500 - Gypsum Roof Deck Replacement Procedures . NRDCA 500 - Gypsum Roof Deck Replacement Procedures ... Install gypsum slurry on all flanges of bulb tees and cross tees. Add a 2-inch wide line of gypsum across the diagonals of each formboard. After the slurry and diagonal pattern of gypsum has set, mix a new bag of …
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Poured gypsum concrete is typically used in conjunction with steel bulb tees, formboards, and galvanized reinforcing mesh (Fig. 8.14). Drainage slopes can be readily built into the roof deck by varying the thickness of gypsum. FLOOR FRAMING With a large variety of structural steel floor-framing systems available, designers frequently
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1/2" and 5/8" DensDeck Prime Roof Boards are the fi rst and only gypsum roof boards with a limited warranty for up to 90 days of exposure to normal weather ... The following is a typical configuration of a roof deck for a FM Class 1 fire rating and is for illustration purposes only. Please consult FM or RoofNav (https:// ...
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Sub-purlins: Openweb truss-tees, hot-rolled bulb-tees or folded sheet metal tees as required by design loads, spans and fire ratings. Flanges: Provide 16 mm (5/8-inch) …
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The patented DensDeck ® design employs glass mat facings front and back that are embedded into a water-resistant gypsum core providing excellent fire resistance, moisture resistance, and wind uplift properties.. The unique construction of DensDeck ® provides excellent flute spanning that stiffens and provides increased foot traffic resistance to the …
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The patented DensDeck ® design employs glass mat facings front and back that are embedded into a water-resistant gypsum core providing excellent fire resistance, …
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First of it's kind in roof protection. Georgia-Pacific redefined roof boards in 1987 with DensDeck Roof Board. This innovative cover board provides stronger puncture protection and is non-combustible as a result of its gypsum core. Since 1987, Georgia-Pacific has continued innovating industry-leading high-performance roof boards.
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The results of a study of the structural action of a gypsum slab with steel bulb tee subpurlins and steel bar joist purlins in poured-in-place gypsum concrete roof decks are presented. Present (1966) practice is to design these decks on the assumption that only the steel is effective in supporting the loads to which these decks are subjected.
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ROOF DECK PANELS 2 TECTUM ROOF DECK PANELS AT WORK 3 LIMITED WARRANTY 3 TECTUM ROOF DECK DESIGN GUIDELINES 4 TECTUM I PLANK, TILE AND TECTUM IIIP 5 TECTUM PANEL SIZES 5 ... All panels were installed with staggered ends except Tectum I tile with 168 bulb tees and Tectum III tile on truss tees. 3. …
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The top surface can be finished as a driving surface or roughened in preparation to receive an HMA overlay or cast in place deck. Standard girder depths are 35", 41", 53" and 65". Options for deck bulb tee girders include: Finishing the top of the girders as the drivable surface or preparing the deck to receive an HMA or cast in place ...
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A Gypsum Deck Patch is required to maintain a complete roofable surface. The emptied 32" hole in the gypsum roof deck is the space between bulb tees. A steel deck section …
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Figure 2 – The wood shavings (aspen) are known as "excelsior," "wood wool," and "American moss." of the framing sys-tem—that is, framing other than bulb-tee rails. For expediency, the term panels will . be used throughout this text, as plank . always denotes a . tongue-and-groove unit in CWF jargon. This configu-ration of roof deck
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The screen area is large enough that it will increase wind loads into the existing roof structure by more than 10% meaning I will need to review the lateral load resisting system per the 2012 IEBC. The plans state that the roof deck system is "2-1/2 inch Insulrock on #158 bulb tees @ 32 inches o.c.".
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Those are the bottoms of "bulb tees". The system you describe is a gypsum roof deck using bulb tees, formboard and cast-in-place gypsum material. The gypsum has a welded wire fabric, slightly better than "chicken wire" to keep shrinkage cracks in the gypsum relatively tight. If you are concerned about diaphragm action, the bulb tees …
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1. Open web truss-tees, hot-rolled bulb-tees or folded sheet metal tees as required by design loads, spans and fire ratings. 2. Flanges: Provide 16 mm (5/8-inch) minimum bearing for gypsum planks. 3. Galvanize or factory coat sub-purlins with manufacturer's standard primer. 4. Open web truss-tees: Fabricate from cold-formed steel wire
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The longitudinal deck panel edge was seated atop the horizontal leg of the bulb-tee section (visible in the center of the photograph) and mechanically fastened using self-tapping screws. ... The roof decking incorporates 1/2-inch gypsum formboard loose laid between steel bulb-tee supports spaced about 32 inches on-center. The poured …
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Hot-rolled bulb-tees: Rail-shaped, fabricated from hot-rolled steel conforming to ASTM A36 or ASTM A499. ... Roof Decks: Use minimum 13 mm (1/2-inch) fillet welds on alternate sides of sub-purlins, both sides at end joints to main purlins. ... Gypsum, gypsum plank, gypsum plank decking, gypsum decking, sub-purlins, cross-tees, gypsum deck plank ...
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I am looking for resources for poured gypsum bulb tee roof construction. We are doing some renovations to an existing building, built in 1957, and I can't find the information I …
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Contribute to zhosuren/es development by creating an account on GitHub.
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Specialty fasteners for low-slope roofs have been around as long as gypsum decks have been used. They are usually in the form of expanding, driven devices used for securing …
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Bulb Tees are high strength, lightweight, steel sections for use as structural subpurlins in specialty roof decks such as Tectum Wood Fiber Decks, Poured Gypsum Decks and …
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Prestressed Bulb Tee Design; xPost-tension Ducts; Offers rugged durability to hold transverse loads and evenly distribute weight for dependable structural integrity; Quick and easy install means less time is spent on the construction site. The beams are produced concurrently with the on-site construction thus reducing the overall schedule.
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NRDCA Guidelines and Procedures The NRDCA is developing industry consensus guidelines and quality control procedures for the application of systems represented by Association members. The documents represent an industry consensus on the subjects of application, quality control and repair or replacement of various roof deck systems. …
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Thermal resistance (R) value is 0.67 per inch. It complies with ASTM C317 ... No. 218 Bulb Tee sub-purlins are the only size currently manufactured and are available from The Poteet Group. ... and fiberglass formboard are both available. Fire ratings are available with 2-inch gypsum slabs and exposed tees. Ideal for almost every roof deck need ...
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Below is a link to a site contains info on "Bulb Tees". However, it uses different dsignation system as compared to yours. Wish this helps as a lead in further look into this matter. htt p://metals alesusa.th omasnet.co m/viewitem s/bulb-tee /marine-sp ecial-shap es-6061-t6-bulb-tees l-aluminum
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4. We placed new bulb tees, laid gypsum "form panels" in the bulb tees and then poured the new gypsum deck. We used a small grout pump to pump the gypsum to the roof deck. 5. The existing roofing membrane was then completely removed and a new roof membrane installed. The key, if you do the job yourself, is finding the matching …
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KeyDeck woven wire mesh is commonly used in repair of poured gypsum roof decks. Keydeck mesh is made up of 2″ hexagonal mesh composed of woven 19-gauge galvanized wires with an additional 16-gauge …
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#218 Bulb Tees - WestPro Construction Solutions #218 Bulb Tees High Strength Structural Subpurlins & Bond Beams Bulb Tees are high strength, lightweight, steel sections for use as structural subpurlins in specialty roof decks such as Tectum Wood Fiber Decks, Poured Gypsum Decks and Span-Rock Gypsum Plank Decks.
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I am working on this building from around 1960 and it has an existing poured gypcrete roof deck system that spans to bulb tees that span to the steel structure. ... Do you plan to have the plate over a bulb tee or other structural member so the gypsum is only in compression? ... The reactions are 360 plf or 30 pounds per inch. Assume you …
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for many decades. In roof decks, the irst widespread use of SCA was the poured gypsum roof deck on bulb tees that began over 70 years ago. It was produced by several manufacturers such as United States Gypsum Co., Bestwall Company, and Georgia-Paciic Corp. Next came lightweight insulating concrete (LWIC)
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PE series jaw crusher is usually used as primary crusher in quarry production lines, mineral ore crushing plants and powder making plants.
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