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  • Atlas Copco Rock Reinforcement Products Product catalogue

    2017-11-14 · Swellex rock bolts This expandable rock bolt is more complex to manufacture than a MAI SDA. The steel profile is pressed into shape and a bushing is welded on the open end-piece. As pressurised water is used to install a Swellex bolt in the hole, leakages are not wanted. That’s why each and every bolt is tested

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  • Expandable Rock Bolts - SSAB

    2019-12-1 · This specification covers the chemical, mechanical, and dimensional requirements for roof and rock bolts and accessories. Addressed in this specification are double-end threaded bars; fully grouted bolts and threaded bars; mechanical anchorage devices used for point anchorage applications; roof truss systems; partially grouted deformed bolts;

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  • ASTM F432 - Standard Specification for Roof and Rock

    2018-9-21 · Steel bar diameter: 20 mm Ultimate tensile strength of steel rebar: 18 tonnes Faceplate: flat plate Borehole diameter: 32 mm Cement grout: 0.35 water/cement ratio grout cured for 11 days. At a load of 15 tonnes and an elastic deformation of about 1.5 mm, a sudden load drop is characteristic of hot rolled rebar steel.

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  • Practical Rock Engineering Chapter 14 Rockbolts and Cables

    1.1 This specification covers the chemical, mechanical, and dimensional requirements for roof and rock bolts and accessories. Addressed in this specification are double-end threaded bars; fully grouted bolts and threaded bars; mechanical anchorage devices used for point anchorage applications; roof truss systems; partially grouted deformed bolts; bearing plates; cable bolt systems; expandable rock bolts …

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  • ASTM F432 - 19 Standard Specification for Roof and Rock ...

    2021-4-29 · Specification for quenched and tempered alloy steel bolts, studs, and other externally threaded fasteners. ASTM A394. Specification for Steel Transmission Tower Bolts, Zinc-Coated and Bare. ASTM A437. Specification for Stainless and Alloy-Steel Turbine-Type Bolting Specially Heat Treated for High-Temperature Service.

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  • ASTM Specifications for Fasteners & Fastener Materials ...

    370mm². Rolled Thread. M24x3.0mm Pitch. Key Features. Manufactured from a special hot rolled deformed bar designed by DSI Underground. This bolt features a rib pattern which actively assists with mixing the chemical anchors during installation.

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  • Standard Bar - DSI Underground Australia

    Specification: dia. 10-50mm. Length: can be 18m per rod. Full thread GRP bolts, perfect thread fiberglass anchor bolt. Grp Anchor Rock Bolts Used In Underground Mining. 1 The percentage of glass fiber: ≥80%. 2 Tensile strength: ≥800N/mm2. 3 Elasticmodulus: ≥37000 N/mm2. 4 Breaking Extensibility: ≥2.5%. 5 Bearing capacity of screw thread: ≥14KN/thread

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  • Fiberglass Anchor Bolt - Buy Mine Application Composite ...

    Resin Rock Bolts are specified via Item 203.17140017 Resin Rock Bolts – One and One Quarter Inch Nominal Diameter (Grade 150) Cement Grouted Rock Bolts Cement grout is used to develop a bond between the bolt and the rock. Slightly oversized holes are drilled and the centralized bolt is placed. The drill hole is then tremie grouted.

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  • An Introduction to Sample Specification for Rock Bolts by ...

    Buy An Introduction to Sample Specification for Rock Bolts by Guyer, J Paul online on Amazon.ae at best prices. Fast and free shipping free returns cash on delivery available on eligible purchase.

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  • DYWIDAG Rock Bolts - DSI EMEA

    Expansion Shell Anchors Rock Bolts with Expansion Shell. Extremely fast and easy installation. Immediate load bearing capacity in the borehole. Galvanized version available. Retensionable. Various angle compensation designs available.

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  • ASTM F432 : Standard Specification for Roof and Rock

    2019-12-1 · ASTM F432, 2019 Edition, December 1, 2019 - Standard Specification for Roof and Rock Bolts and Accessories This specification covers the chemical, mechanical, and dimensional requirements for roof and rock bolts and accessories. Addressed in this specification are double-end threaded bars; fully grouted bolts and threaded bars; mechanical anchorage devices used …

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  • ASTM-F432 | Standard Specification for Roof and Rock

    1.1 This specification covers the chemical, mechanical, and dimensional requirements for roof and rock bolts and accessories. Addressed in this specification are double-end threaded and slotted steel bars; fully grouted bolts and threaded bars; mechanical anchorage devices used for point anchorage applications; roof truss systems; partially grouted deformed bolts; formable …

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  • Swellex Rock Bolting System | Rock Reinforcement | Epiroc

    2021-7-9 · Rock bolts. Since its introduction 30 years ago the Swellex expandable rock-bolting system has gained wide recognition in the mining and tunneling industry. This unique rock bolt consists of a welded tube folded in upon itself, sealed at one end. It is re-expanded using a high pressure water flow provided by a special pump and adapter.

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  • Structural Bolts | Fastenal

    Bolt fittings, such as nuts, anti-friction washers and domed balls, are supplied fitted to rock bolts in the configuration requested. Notes DSI Underground Mining Products Division is Quality Assured to ISO 9001:2015, Registration QMS 41328.

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  • Standard Bar - DSI Underground Australia

    2021-4-29 · Specification for quenched and tempered alloy steel bolts, studs, and other externally threaded fasteners. ASTM A394. Specification for Steel Transmission Tower Bolts, Zinc-Coated and Bare. ASTM A437. Specification for Stainless and Alloy-Steel Turbine-Type Bolting Specially Heat Treated for High-Temperature Service.

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  • ASTM Specifications for Fasteners & Fastener Materials ...

    Paddle Bolts Forged Head Replacement Bolts ... Accessories for Rock and Roof Bolts ...

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  • Rock Bolt - rock bolts Suppliers, Rock Bolt Manufacturers ...

    Diameter : 16mm 18mm 20mm 22mm. Material : steel. We are offering our client an excellent quality range of Rock Bolts. These Rock Bolts are made from very high quality raw material which ensures high. durability at its user end. These Rock Bolts are in high demand in the market. Mild steel rock bolts used to stabilize stones for.

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  • An Introduction to Sample Specification for Rock Bolts by ...

    Buy An Introduction to Sample Specification for Rock Bolts by Guyer, J Paul online on Amazon.ae at best prices. Fast and free shipping free returns cash on delivery available on eligible purchase.

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  • ASTM-F432 | Standard Specification for Roof and Rock

    1.1 This specification covers the chemical, mechanical, and dimensional requirements for roof and rock bolts and accessories. Addressed in this specification are double-end threaded and slotted steel bars; fully grouted bolts and threaded bars; mechanical anchorage devices used for point anchorage applications; roof truss systems; partially grouted deformed bolts; formable …

    Get Price
  • ASTM F432 : Standard Specification for Roof and Rock

    2019-12-1 · ASTM F432, 2019 Edition, December 1, 2019 - Standard Specification for Roof and Rock Bolts and Accessories This specification covers the chemical, mechanical, and dimensional requirements for roof and rock bolts and accessories. Addressed in this specification are double-end threaded bars; fully grouted bolts and threaded bars; mechanical anchorage devices used …

    Get Price
  • DYWIDAG Rock Bolts - DSI EMEA

    Expansion Shell Anchors Rock Bolts with Expansion Shell. Extremely fast and easy installation. Immediate load bearing capacity in the borehole. Galvanized version available. Retensionable. Various angle compensation designs available.

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  • Atlas Copco Rock Reinforcement Products Product catalogue

    2017-11-14 · line rock bolts, which are manufactured from a special type of steel. Another development is the Swellex Premium line of rock bolts, for use where high yield load and stiffness are expected from the reinforce-ment system. When Atlas Copco bought MAI in 2001, the rock reinforcement center moved to Feistritz/Drau, Austria.

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  • An Introduction to Sample Specification for Rock Bolts by ...

    Find many great new & used options and get the best deals for An Introduction to Sample Specification for Rock Bolts by J. Guyer (2016, Trade Paperback) at the best online prices at eBay! Free shipping for many products!

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  • Fastener Standards - ASTM International

    Standard Specification for Roof and Rock Bolts and Accessories: F436 F436M - 19: Standard Specification for Hardened Steel Washers Inch and Metric Dimensions: F541 - 12(2020) Standard Specification for Alloy Steel Eyebolts: F835 - 20: Standard Specification for Alloy Steel Socket Button and Flat Countersunk Head Cap Screws: F844 - 19

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  • Buyers Importers of Nuts Bolts, Buy Requirements Trade ...

    19-Feb-2021 [To Buy] Rock Bolts, Nuts & Washers etc. Dear Sir, We would like to request price quotation for : 1. 10MM Threaded Rod 2. 10MM Drop in Anchor with Bolt, Nut, and Washer.

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  • ASTM International - ASTM F432-95 - Standard

    2001-1-1 · scope: 1.1 This specification covers the chemical, mechanical, and dimensional requirements for roof and rock bolts and accessories. Addressed in this specification are double-end threaded and slotted steel bars; fully grouted bolts and threaded bars; mechanical anchorage devices used for point anchorage applications; roof truss systems; partially grouted deformed bolts…

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  • DYWIDAG Rock Bolts - DSI EMEA

    Expansion Shell Anchors Rock Bolts with Expansion Shell. Extremely fast and easy installation. Immediate load bearing capacity in the borehole. Galvanized version available. Retensionable. Various angle compensation designs available.

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  • DYWIDAG Rock Bolts - DCP-Rock Bolt - DSI Canada

    DCP – Rock Bolt Features. Superior performance — On-site assembly to any length. Double Corrosion Protection (DCP) consisting of corrugated plastic sheathing and cement grout. Stressable with hydraulic jack immediately after installation. Hydraulic jack sitting on shoulder of hemispherical seat. Direct load transfer from anchor head to ...

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  • SP 225.2 Prestressed Rock Bolts - NH

    2013-3-10 · SECTION 225 -- ROCK BOLTS Item 225.2 - Prestressed Rock Bolts Description 1.1 This work shall consist of furnishing, drilling, installing, and testing prestressed, grouted rock bolts and accessories at the locations and in the patterns shown on the plans or as ordered. On this project, it may be necessary to install rock bolts at any location ...

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  • ASTM-F432 | Standard Specification for Roof and Rock

    1.1 This specification covers the chemical, mechanical, and dimensional requirements for roof and rock bolts and accessories. Addressed in this specification are double-end threaded and slotted steel bars; fully grouted bolts and threaded bars; mechanical anchorage devices used for point anchorage applications; roof truss systems; partially grouted deformed bolts; formable …

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  • Structural Bolts | Fastenal

    2020-2-29 · anchors and tensioning procedures for rock bolts are detailed in this publication. Failure to follow approved practices, may result in failure. 3. The applied safety factor for a product will depend on the degree of hazard or risk involved in the product application. This safety factor is governed by national codes, local codes

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  • Rock Anchoring and Bolt Systems

    TDS Mineral Bond LV Mineral Bond LV _ Component B Mineral Bond LV _ Component A Self-Drilling Hollow Bar Anchor System DSI Pump Set - Multi Pump

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  • Mining | rocbolt

    Bolts. A wide range of bolts according to international standards like e.g. ISO - DIN - EN. A diversity of materials, surface treatments, dimensions, threads (metric, imperial..) and head types (hexagon, mushroom..). Available from stock in various steel types, but also in e.g. stainless steel, copper, aluminium and plastic.

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  • Class 12.9 Bolts and High Tensile Grade yfs 012.9 Metric ...

    2019-12-10 · Download Product Catalogue DSI Underground Corporate Brochure DSI Underground Corporate Brochure 07 May 2021 2.13 MB Download Brochure Corporativo 07 ...

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  • MITTAL ENGINEERING - Complete Specific Rock Bolts

    Rock Bolts As per IS: 1786. MATERIAL USED : S.A.I.L.’s T.M.T Fe 415 OR 500 SIZE : 25mm, 32mm & 36mm LENGTH : from 3m to 9m long THREAD : M24, M30, M33 & M36 (Left & Right Hand Thread) One end is threaded as per the requirement and other Concentrically Bevelled upto 2” ...

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  • An Introduction to Sample Specification for Rock Bolts ...

    2016-10-20 · Swellex rock bolts General information Swellex Pm12 Minimum breaking load 110 kN Minimum yielding load 90 kN Minimum elongation 10% Expansion pressure 300 bar For further information, see also technical data page 7. Minimum elongation 'A': According to EN-ISO 6892-1 where applicable. Swellex Pm12 rock bolts Size Length (m) Weight (kg) Product ...

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  • R32 Self-Drilling Anchor Rock Bolt - ontonbolt.com

    Bolts are headed, externally threaded fasteners used to keep two objects, often metal or wood, in a fixed position relative to one another. Unlike screws, which cut their own threads, bolts pair with the internal threads of nuts to stay in place and ensure the desired level of tension in the bolted joint. The use of nuts aids in disassembly and reassembly.

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  • Secoroc Rock Drilling Tools SWELLEX ROCK BOLTS

    2020-11-18 · Custom Bolts and Fasteners. Our bolts are used by a broad range of industries requiring assemblies and fastening applications. These threaded fasteners can connect machine parts, mount equipment, and more. As a removable fastener, they also facilitate the regular maintenance and inspections that keep equipment running longer.

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  • Bolts | Fastenal

    2010-3-23 · grouted bolts as well as swellex bolts will mainly be analyzed in the thesis. In the following, four constitutive models developed for the design of rock-bolt system based on analytical methods will be discussed. In is of great importance to utterly acquaint with those models involving the rock-bolts, rock mass interaction. 3.

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  • Custom Bolts and Fasteners | National Bolt & Nut Corp

    washer (2' or 2-1/4') for 1-3/8' or 1-1/2' drill holes. TANDEM ANCHOR ® Bolts are 'POINT ANCHOR BOLTS' because the full length of the bolt is placed under tension. Resin is inserted into the drilled hole followed by the bolt. Rotation of the bolt mixes the resin and causes the expansion shell to expand and place the bolt in tension.

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  • ANALYTICAL DESIGN OF ROCK-BOLT SYSTEMS

    Tat Eng was established in the year 1978 and is now one of the top metal suppliers in Singapore well-known for providing customers the most competitive pricings, good services, quality products, and prompt delivery. We are one of the leading importers, exporters, wholesalers and stockists for a wide range of bolts and nuts fasteners.

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  • Installation Accessories - DSI Underground Canada

    The first step in choosing the proper race plug is determining the plug type that your cylinder head/piston will accept. Thread diameter and pitch, thread length, shell seat as well as hex size are all factors that will define what shell type works best …

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