Additional Durosil Products
ALKALI PROOF CONCRETE - DUROSIL CR
Durosil CR concrete has been developed to compliment Durosil DR11 Acid Proof Concrete by providing an easy to lay Alkali Proof Concrete for those applications where the pH of the solution/solids is between 7-14. It is not especially resistant to acidic conditions but will tolerate short exposure to pH levels less than 7 provided the acid is neutralised.
The products consists of a blend of silica sands, pure quartz, calcium aluminates and additives which when mixed with water (2 litres per 25k bag) produces a strong, grey concrete.
The Durosil CR grade exhibits all the properties that you would normally associate with a concrete material. It can be placed by tamping or trowelling into place as a low water content screed (40mm) or poured and vibrated behind shuttering using standard equipment and techniques. As with all screeds the substrate will need to be prepared to remove any contamination or laitance, to provide a sound base with a suitable profile.
Physical Properties
| Bulk Density range | 2.20-2.40 g/cc |
| Cold Crushing Strengths | 7 days - 29.5N 28 days - 39.0N |
| Grain Size | 0 - 6 mm |
| Temperature Limitation | 700°C |
| Adhesion to Ceramic Earthenware | Excellent |
| M.O.H's Hardness | 7 |
| Setting Time (hours) | 4 - 6 hours |
DUROSIL DR6 ACID PROOF MORTAR - A NEW APPROACH
Until now it has been necessary to call on Resin Technology to provide various mortars to resist the many differing types and strengths of acid used in chemical processing. Furane, polyester and phenolic resins are expensive, difficult to use and by no means user friendly, some possibly carcinogenic.
Durosil are manufacturing under licence an acid proof mortar, which is safe and fume-free in use, as easy to use as sand/cement mortar and a fraction of the cost of resinous mortars.
It will resist all acids, in all concentrations with the sole exception of hydrofluoric. It is not resistant to alkaline materials.
The product is supplied as a pre weighted kit, comprised of a bag of graded aggregates and flours and a bottle of mixing liquid, which can be easily and quickly mixed using conventional equipment. Tools, plant and equipment can be cleaned with water.