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| Q. |
How is electrical and plumbing done? |
| A. |
Electrical conduit and plumbing are easily inserted in COFFOR prior to the pour by cutting the lath with a shear or a circular saw. |
| Q. |
Is a special concrete mix required with COFFOR ? |
| A. |
No. The same concrete mix as in other waterproof formwork systems is used. Maximum aggregate size should be 20 mm (3/4’’). Recommended slump is 15-18 cm (6-7’’). Concrete is poured with a pump, a bucket or a shovel. |
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Residential building
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3 / 4 |
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Radius wall |
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| Q. |
Is vibration necessary? |
| A. |
Vibration is not necessary but possible if needed. Concrete placement is easily viewed directly through the grids. Roding or taping the outside surface of the wall is enough. A pencil vibrator 25 mm (1’’) can be used, staying 40 mm (158’’) away from the rib lath. |
| Q. |
During pour how much concrete escapes through the COFFOR grids? |
| A. |
Less than 1 to 2% escapes but can be picked up and poured back inside. Laboratory tests show that the concrete quality with COFFOR is superior due to the rapid elimination of excess water. |
| Q |
Are special equipment or accessories required? |
| A. |
No. COFFOR is simple to use and does not require heavy infrastructure or equipment such as cranes. No specific accessories are necessary. The only requirements are those generally available on all construction sites such as gloves, hammers, electric saws, pliers, plumblines, steel wire, tubes, light planks, ladders, etc. |
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