Pond Lining
For pond lining we use a layer of CemForce laminated to a waterproof membrane. CemLam is also vapour proof. Garden and waste water treatment ponds are made from CemLam, usually with a layer of wet bonded in situ CemForce. The pond lining is 3 - 4 mm thick CemPly # 2® with a waterproof membrane. Even if the ground moves (it does) the pond remains watertight.
Ponds can have an impressed (stamped) concrete surface, be surrounded by rocks hand laid - up in rubber moulds; these faithfully reproduce the texture and cracks of natural rocks. Alternatively rock faces can be wet sculptured to reproduce the hand stacked look of dry-stone walling.
The (staged) photograph above shows CemLam (it’s waterproof) bonded to CemForce using a Cemcrete mix. This construction is widely used as pond lining. (The match box and coin are for scale.) A hole in the ground becomes a pond; the lining is 3 mm (1/8 inch) thick. If the ground moves, so the lining moves with it.
Garden ponds, and waste water treatment ponds have been made this way for 10 years. The same construction is used for simulated rocks and waterfalls.
After dip coating, the fibres can be seen protruding from the mix; this fibre-reinforced cementitious interface forms between the layers of CemForce in CemPly®.
CemLam as art, waterproof to right hand side