Water & sanitation
ReturnOperations in drains
Prompt natural cement is suitable for many types of works, such as mortar or concrete repairs in drains, rainwater networks, gutters, run-offs, manhole bases, canals, cofferdams, resurfacing under a waterproofing membrane, etc.
Benefits of using Prompt natural cement:
Prompt natural cement brings speed of execution and excellent bonding, which allows for effective operations and good waterproofing. It resists aggressive waters, up to pH=4, and sea water. Although there are many specialised formulated products, these results come from a single product, because Prompt natural cement can be used as a neat cement to block leaks in waterways, a mortar for an waterproofing render and concrete if a large quantity is required.
Advantages:
- Rapid return to use,
- Resistance to pure acid and sulphated waters,
- Resistance to sea water (NF P 15-317),
- Acid waters up to pH = 4,
- Very good bonding on all surfaces,
- Money-saving solution,
- Excellent durability.
Doses and preparation:
The qualities required for waterproofing and resistance to aggressive waters or sea water mean that Prompt natural cement should be used (in particular mortar) at a high dose.
In Prompt natural cement mortar:
CNP | Tempo | Sand | Water | |
Strong mix (in volume) | 2 litres | 2 capfuls | 1 litre | 0.6 to 1 litre |
In Prompt natural cement concrete:
CNP | Tempo | Sand + Gravel | Water | |
Ordinary dose | 1 bag of 25 kg | 1 to 2 bottles | 50 litres | 8 to 12 litres |
High dose | 1 bag of 25 kg | 1 to 2 bottles | 30 litres | 7 to 10 litres |
Advice:
The setting time can be adjusted using the retardant additive Tempo.