Just fill in the form below, click submit, you will get the price list, and we will contact you within one working day. Please also feel free to contact us via email or phone. (* is required).
5.5.1 Anchor pull tests should be conducted in all rock types in which construction bolts will be installed. If the rock is anisotropic, for example, bedded or schistose, the tests should be conducted in various orientations relative to the anisotropy, including those at which the construction bolt …
Get Price2017-2-28 · Suitable for testing virtually all types of rock bolts and soil nails; When testing friction bolts, OMEGA-BOLT ®, or forged head bolts, the pull collar must be put onto the bolt BEFORE installation of the bolt; 30 ton units available for sale or rent; Comes complete with wooden crate; Pull test collars available upon request
Get Price2021-1-22 · Procedure for Rock Bolt Rock Anchor Pull Out Test Test Procedure. The drill hole diameter is kept as double the diameter of the element. The standard specification follows up for hole drilling operations must be ensured. Inspect the …
Get Price2016-7-19 · a rock bolt or its anchor. 12.1.1 Fit the socket of the torque wrench to the rock bolt head or nut to be tested. 12.1.2 Apply a preset torque to the rock bolt or its anchor, increasing the torque in small increments until just sufficient to cause the face nut to rotate. Record the torque wrench reading, the date of test, and the rock
Get Price2012-8-29 · A fully grouted bolt anchors itself by frictional interlock between the resin and the rock. The effectiveness of the interlock is measured by the “Grip Factor,”2 which is defined as the bolt’s resistance to pullout per inch of bolt length. 1In addition, the roof bolts may be intact, but the support system can fail if the
Get Price2017-10-1 · A laboratory pull-out test sample consists of the bolt (rock bolt or cable bolt), the rock sample, the metallic tube and the materials used to grout the bolt to the rock and to the tube. The proper preparation of the samples, in particular the accurate coaxiality of all elements, is very important to ensure the correct assemblage of the experimental bench.
Get Price3/4”- 10 UNC. 7/8”-9 UNC. All dimensions in accordance with ASTM F432 & CSA M430-90 specifications. Technical Data. C1060 Steel. C1060 Steel. C1070. C1070M. 5/8' Bolt.
Get Price2017-11-14 · 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
Get Price2021-7-27 · This bolt testing process involves inserting a bolt, nut and washer assembly into the bolt tension calibrator, then tightening them just as you would in an actual steel construction. Then, a tension reading is taken from the bolt tension calibrator to verify that the minimum tension requirements for the bolt have been met.
Get PriceBolt Testing. Skidmore Wilhelm's hydraulic tension calibrator, or bolt tension calibrator, has been the industry standard for testing high-strength bolts since we invented the technology in the 1950's. Our units are required to be used on steel buildings, bridges and other structures using fasteners in slip critical joints.
Get PriceRock Mechanics. Rock mechanics is an important field of geotechnical engineering as it is the theoretical and applied science concerning the physical behavior of rocks and rock masses. We offer an extensive range of modern laboratory solutions for strength, stiffness and durability determinations according to international standards suitable ...
Get Price2020-2-29 · Rock Anchoring and Bolt Systems ... were obtained through an independent testing facility or tests conducted by NCA. However, the performance of a quality ... sale which apply to all goods supplied by NCA. No statement, recommendations or suggestions is intended for any use
Get PriceHilti's anchor site testing service is the solution. Schedule anchor site testing. As a Structural Engineer, you may not have enough data available to determine the resistance of a post-installed anchor for a safer, efficient and cost-effective design. Approval documents or technical manuals may not cover the base material.
Get Price2018-9-21 · load from the bolt onto the rock face. In addition, a tapered washer or conical seat is needed to compensate for the fact that the rock face is very seldom at right angles to the bolt. A wide variety of faceplates and tapered or domed washers are available from rockbolt suppliers.
Get Price2010-10-18 · The mechanical anchor bolt consists of a smooth bar with a threaded anchor end. A mechanical shell anchor attached to the threaded end of the bolt is used to anchor the system. When a torque is applied to the bolt, the force drives a plug against the outer shell, which then expands and sets against the rock in the borehole walls (Figure 2-2).
Get Price2016-4-5 · PROCEDURE FOR SITE TESTING CONSTRUCTION FIXINGS –2012 (07 12 12) 4 Of these two approaches the CFA recommends the “Preliminary test procedure” as it requires fewer tests and is less likely to involve damaging the base material as the initial tests are taken only to a test load and tests to failure of all . 1 1 * *! * * CFA Guidance Note: ...
Get Price2021-7-27 · This bolt testing process involves inserting a bolt, nut and washer assembly into the bolt tension calibrator, then tightening them just as you would in an actual steel construction. Then, a tension reading is taken from the bolt tension calibrator to verify that the minimum tension requirements for the bolt have been met.
Get Price2020-2-29 · Rock Anchoring and Bolt Systems ... were obtained through an independent testing facility or tests conducted by NCA. However, the performance of a quality ... sale which apply to all goods supplied by NCA. No statement, recommendations or suggestions is intended for any use
Get PriceRock Mechanics. Rock mechanics is an important field of geotechnical engineering as it is the theoretical and applied science concerning the physical behavior of rocks and rock masses. We offer an extensive range of modern laboratory solutions for strength, stiffness and durability determinations according to international standards suitable ...
Get PriceThis bolt and nut ITP is a general ITP and need to be completed and modified based on your purchase order specification. You need to review your bolt and nut vendor proforma invoice and your purchase order and change this inspection and test plan. H: Hold Point implies that relevant production activities shall not proceed until the continuation ...
Get PriceRock Bolts. Rock Bolts are generally formed from solid threadbar systems, i.e. bar, nut, couplers and plates. The steel threadbar is used to bond unstable rock to stable sections, beyond the face, and requires both capacity for tensile and shear loads.
Get Price2014-5-27 · appropriate plates for the size of bolt are installed. The bolt, nut and hardened washer are then installed through the central hole and tightened by whatever method is to be employed in the project (see photo at left for a bolt, nut and washer installed in the device, ready for testing).
Get Price2016-12-11 · 9 method covered for bolt torquing & tensioning 10 equipment 11 calibration 12 pre job check 13 job specific check 14 bolt torquing parameter 15 work sequence procedures 16 bolt torquing and tensioning activites 17 temporary gaskit & their controls 18 stud bolt additional tightening procedure 19 torque tensioning valve
Get PriceSandberg offers bolt testing using two tensometers to cover a wide range of loads as well as different test parameters. Range of bolt tests includes: UKAS accredited for ISO 6892 Tensile tests – Load range 0.1kN to 600kN. Tensile testing of full size and machined bolts. Head soundness test.
Get PriceThis bolt and nut ITP is a general ITP and need to be completed and modified based on your purchase order specification. You need to review your bolt and nut vendor proforma invoice and your purchase order and change this inspection and test plan. H: Hold Point implies that relevant production activities shall not proceed until the continuation ...
Get PriceFor Annual Book of ASTM Strength of a Rock Bolt Anchor (Pull Test),”Suggested Methods for Rock Bolt Standards volume information, refer to the standard’s Document Summary page on Testing, International Society for Rock Mechanics Commission on Standardization the ASTM website. of Laboratory and Field Tests, 1974.
Get Price2014-5-27 · appropriate plates for the size of bolt are installed. The bolt, nut and hardened washer are then installed through the central hole and tightened by whatever method is to be employed in the project (see photo at left for a bolt, nut and washer installed in the device, ready for testing).
Get PriceRock Bolts. Rock Bolts are generally formed from solid threadbar systems, i.e. bar, nut, couplers and plates. The steel threadbar is used to bond unstable rock to stable sections, beyond the face, and requires both capacity for tensile and shear loads.
Get PriceHilti's anchor site testing service is the solution. Schedule anchor site testing. As a Structural Engineer, you may not have enough data available to determine the resistance of a post-installed anchor for a safer, efficient and cost-effective design. Approval documents or technical manuals may not cover the base material.
Get PricePull out testing involves attaching a suitable test rig to the bolt, screw, anchor or fixing. This is then put under tension to the designed stress load level to determine how strong and secure the fixing is. This type of service enables potential early diagnosis of underlying problems and our engineers can offer honest and impartial technical ...
Get PriceAMETEK Sensors, Test & Calibration supplies materials testing machines and force measurement instruments that provide the highest level of performance and capability for production testing, quality control, laboratory testing, research and education. Chatillon and Lloyd Instruments are just some of the world-renowned brands manufactured and ...
Get Price2017-2-28 · Suitable for testing virtually all types of rock bolts and soil nails; When testing friction bolts, OMEGA-BOLT ®, or forged head bolts, the pull collar must be put onto the bolt BEFORE installation of the bolt; 30 ton units available for sale or rent; Comes complete with wooden crate; Pull test collars available upon request
Get Price2021-7-28 · 2021-7-28 · Self-Drilling Rock Bolt Drilling, grouting, anchoring, in one! GEOTEC Steel Self-Drilling Rock Bolt is a rock-bolting system based on a fully coarse threaded hollow bar. It is especially recommended for the following applications : Roof and wall bolting. All ground conditions.
Get Price2020-2-29 · 2020-2-29 · Rock Anchoring and Bolt Systems ... were obtained through an independent testing facility or tests conducted by NCA. However, the performance of a quality ... sale which apply to all goods supplied by NCA. No statement, recommendations or suggestions is intended for any use
Get Price2010-10-18 · The mechanical anchor bolt consists of a smooth bar with a threaded anchor end. A mechanical shell anchor attached to the threaded end of the bolt is used to anchor the system. When a torque is applied to the bolt, the force drives a plug against the outer shell, which then expands and sets against the rock in the borehole walls (Figure 2-2).
Get Price0.40' (10.16 mm) Thread Size (left and right) I. All Bolts. 5/8”- 11 UNC. 3/4”- 10 UNC. 7/8”-9 UNC. All dimensions in accordance with ASTM F432 & CSA M430-90 …
Get Price2018-9-21 · 2018-9-21 · load from the bolt onto the rock face. In addition, a tapered washer or conical seat is needed to compensate for the fact that the rock face is very seldom at right angles to the bolt. A wide variety of faceplates and tapered or …
Get Price2017-11-14 · 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.
Get Price2017-5-17 · 2017-5-17 · of a hydraulic jack that presses a cylinder towards the rock surrounding the bolt. Due to this configuration of the test equipment, a rock cone failure cannot be captured. The results showed that the test rig may influence the obtained load capacity if …
Get Price