With the increase in urbanisation and climate changes, retention is increasingly becoming an important consideration for many projects to prevent flooding and property damage. Therefore, the following challenges must be met:
Due to the increasing development (especially in urban areas), rainwater can no longer directly infiltrate into the ground. As a result, when heavy rainfall events occur, the risk of surface flooding significantly increases.
When large volumes of rainwater fall in a short amount of time, sewer networks and drainage systems can reach their capacity limit. This results in flooding and high levels of rainwater that can cause damage.
What characteristics should a channel system with retention capacity have to ensure safe and reliable drainage?
Even during heavy rainfall events, retention systems must be able to store large quantities of rainwater and slowly release it into networks or other water bodies.
In heavily built-up areas, low land consumption by the retention system is essential. Due to a high retention volume, fewer inlet boxes and pipe connections are necessary.
Depending on the area of application, retention systems must safely withstand load-bearing forces from heavy traffic.
The drainage system must have a high resistance to frost, de-icing salts and UV radiation to ensure longevity.
The retention system must be simple to install and easy to maintain.
Our systems provide reliable rainwater retention with high hydraulic performance.
Our DRAINFIX BLOC HD crates can be used to create an attenuation system, by wrapping a sealed geomembrane around the tank to create a watertight seal. The additional layer of a protection fleece is then wrapped around to protect the geomembrane.
Large format – just 2.5 units / m3
Lightweight – 17kg per unit
Large storage capacity (383.2 litres) with 95.8% voids
Due to their hydraulic performance and high retention volume, RECYFIX HICAP F systems are suitable as retention channels in addition to drainage. This means that large volumes of water can be retained, stored and discharged into the sewer in a controlled manner even during heavy rainfall events.
Loadable up to class F 900
High retention volume: RECYFIX HICAP F 10000, for example, can retain 443 litres per metre
By using RECYFIX HICAP F channels, drain boxes and pipework can be reduced to a minimum – this reduces costs and the time required for installation.
In addition to DRAINFIX BLOC HD and RECYFIX HICAP F, we offer other options for rainwater retention:
Large hydraulic capacity slim line channel RECYFIX MONOTEC
Channels with greater nominal height, for example, FASERFIX SUPER 500
Temporary storage of surface water
Questions?
Our experienced planning team will be happy to help you.
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