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| Durosil
DR11 Acid Proof Concrete An acid proof
tough concrete which needs no membrane. Durosil DR6 Acid Proof Mortar A mortar version with the same time-saving potential. |
| Advantages
for the Engineer · Durosil DR11 is an acid proof concrete, supplied in kit form. It does not need to be laid on a dry substrate, so downtimes are ngreatly reduced. · Can be laid directly on both green and wet concrete. · Can be laid over existing brick and tile finishes, its excellent adhesion to ceramic earthenware means that leaking bunds can be nrepaired by overlaying with 40mm Durosil DR11. · Can be laid on acid attacked concrete after removal of loose material. · No need to wait 28 days for concrete substrates to dry out to <10% moisture content. · Quick to lay, using similar techniques to laying a garage base. · No dangerous resin fumes from the product. · Scientifics Ltd, an independent test house, found that after 56 days in acid a Cold Crushing Strength of 19.5 MPA in sample n nair-dried cubes increased to an impressive 29 MPA. · Also available; Durosil DR 6 mortar for laying acid resistant brick and tiles. More detail |
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The cases below were in BAE Systems plant in Southern England. One was a deterioration over time of the mortar used to fix acid resistant clay bricks, and the other a sudden catastrophic failure of an acid-tiled floor. Down-time was the crucial factor. Lost production would mean lost profits, also any leakage of acid into the ground water of the Somerset Levels would bring severe financial penalties from the Environmental Agency. |
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Nitric Acid Bund Picture (left) shows the effect of rain and weather on a resinous acid proof mortar, which has washed out of the joints and allowed acid into the surrounding ground, where it could spread to sensitive areas, this particular plant being situated in an area with many Sites of Special Scientific Interest. More detail |
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Nitric
Acid Absorber Towers Photo (left) shows what happened when the plant engineer investigated a small hole which appeared in one corner of the tiled floor beneath the nitric acid absorption towers. The whole floor collapsed into a hole beneath filled with seething nitric acid. Quick, effective repair was essential.(right) More detail |
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| Sulphur
Recovery Units (SRU) and Durosil For many years sulphur pits have been constructed of concrete and lined with acid-resistant brick, often laid with a furane resin mortar, a smelly and possibly carcinogenic compound. Differential rates of expansion between the civil concrete and the brickwork have frequently caused the latter to collapse, leaving the civil concrete open to attack by sulphur fume, or sulphuric acid in the event of water leaking into the pit. Durosil products are increasingly being used to solve these problems. Durosil concrete and mortar have been used by Shell UK and Adgas in Abu Dhabi both for speed of application and complete resistance to the deleterious effects of sulphur in the pits. They represent a major advance in the repair and maintenance of sulphur pits on oil and gas plants anywhere in the world. Aramco in Saudi Arabia are evaluating Durosil, while Chevron Texaco in the UK are to use Durosil in their forthcoming shutdown. More Detail |
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Durosil Products |
North America (USA, Canada, Mexico): Insulation & Abrasion LLC PO Box 587 Hibbing, Mn 55746 Info@usa-ia.com www.usa-ia.com |
| Durosil Brochure PDF | Mixing Information PDF | Material Safety Data Sheet PDF | Solution Safety Data Sheet PDF |