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Polyester Resin Rock Anchor Installation
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| Step 1 |
Step 2 |
Step 3 |
| For Pre-Tensioned bolts, insert the necessary resin cartridges into the drill hole, by placing the fast-setting cartridges in first and the slow-setting cartridges last. Do not allow cartridges to free fall to bottom of hole. |
Push bolt into hole (rotating at this time is optional). When bolt is completely inserted into the hole, rotate 40-60 revolutions (approximately 10-15 seconds). Caution should be taken to avoid under-spinning or over-spinning. |
Install bearing plate, washer and hex nut. Complete pre-tensioning before slow-setting cartridges gel by using a hydraulic jack or torque wrench depending on design requirements. Installation is complete when slow-setting resin has hardened. Special accessories used for bolt angle adjustment shown here. |
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Gel Time |
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| Two gel times are offered for varied conditions. The standard 2-4 minute gel time meets most requirements. However, for special conditions, where installations are difficult or full length anchored tensioned bolts are used, a 15-30 minute gel time is available. Gel times are standardized at 55-60º F. The effect of temperature on gel time is shown on the left. Temperatures below 35º F will significantly slow down set times. Call your Williams Representative for special fast set resins. |
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| Label Color |
Gel Time @ 55F |
| Green |
1-2 Minutes |
| Blue |
15-30 Minutes |
90% of Compressive Strength should be
reached in 6 times gel time at 75º F
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Storage |
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For maximum shelf life, cartridges should be stored away from direct sunlight in a reasonably cool, well ventilated dry area. Storage life is up to one year if stored at 60-80º F. Under adverse conditions, shelf life is reduced. To insure proper storage, the product should not be subjected to temperatures in excess of 85º F for prolonged periods. Storage is recommended under-cover on original pallets with adequate ventilation. If stored in trailers in hot weather, doors should be left ajar or a sun screen erected over the trailer. Conversely, while cold storage does not adversely effect the shelf life, cartridges should be warmed to a range of 50-60º F before using to assure gel times within the specified range (see Gel Time chart). Cases should be stacked preferably six high with a maximum never to exceed nine cases. Over-stacking will crush cases, resulting in ruptured cartridges. |
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Caution & Safety |
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This product is intended for industrial use only. Avoid contact with eyes and prolonged contact with skin. Wear safety glasses when handling or installing. If contact occurs, wash eyes or skin with water for 15 minutes. In case of eye contact, obtain medical attention. Cartridges contain benzoyl peroxide, polyester resin, styrene and inert fillers. The relationship between hole dimensions, bolt size and the size and number of cartridges is critical to good performance. Your Williams representative will be glad to assist in determining the proper combinations for specific applications. |
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 Williams Form Engineering Corp. All rights reserved. |
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