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Enclosed Rainwater Retention and Water Storage The best protective measure against flood damage and water scarcity!


A key measure in times of extreme weather conditions

Rainwater Retention and Water Storage


Climate change not only leads to more intense and frequent heavy rainfall events but also to longer periods of drought and water scarcity. These extreme climatic conditions can cause floods and significant damage to buildings and infrastructure while simultaneously depleting valuable drinking water supplies.


Given these multifaceted challenges, rainwater retention and water storage are of crucial importance.


Rainwater retention involves temporarily storing rainwater to slowly release it into a public sewer or similar systems. This prevents peak loads on the sewer system and thus avoids local flooding.


At the same time, water storage allows for the management of drought periods and water scarcity, as the collected rainwater can be used during these times. This not only promotes sustainable water management but also enhances the water resilience of our communities.

There are various types of rainwater retention, including:


Open Rainwater Retention


This method involves collecting and retaining rainwater in open basins or ponds. Although this approach is relatively cost-effective, it carries the risk of algae formation due to standing water, which is exacerbated by higher temperatures resulting from climate change. Additionally, nutrients from the surrounding environment can accumulate in open basins, further promoting algae growth. This can not only affect aesthetics but also cause ecological problems.


An example of the environmental hazard posed by algal blooms was the environmental disaster in the Oder River from July to August 2022. It led to the mass death of 400 tons of fish, approximately half of the fish population in the Oder and its tributaries, as well as other organisms in and around the Oder.


Furthermore, open retention basins contribute to water evaporation, which is significant in times of climate change and rising temperatures, as this can add moisture to the atmosphere and promote storm conditions.

Closed Rainwater Retention


A more effective alternative is closed rainwater retention, as offered by the JUMBO BLOCK® system. In this approach, rainwater is retained in underground block systems. This method not only minimizes the risk of algae formation, as the water is not exposed to direct sunlight and stands for shorter periods, but also reduces evaporation. Water can be effectively stored or infiltrated.


The JUMBO BLOCK® system consists of large-volume concrete blocks that are, for example, laid beneath road surfaces. Each block has an impressive capacity of 13.9 m³ and can therefore retain large amounts of water. The water can then infiltrate into the ground or be used for various purposes such as irrigating green spaces.


The JUMBO BLOCK® system thus offers a sustainable and effective method of rainwater retention, minimizing ecological problems, improving water quality, and being cost-efficient.


In times of climate change, it is a forward-looking solution for creating a more resilient and sustainable environment.

JUMBO BLOCK® Solution

JUMBO BLOCK® Components

1️⃣ JUMBO BLOCK®
The core of the system – a massive, hollow, load-bearing concrete module (2.5 m x 2.5 m x 2.5 m) with an impressive capacity to support up to 792 tonnes. This block is designed for underground installation, forming the backbone of a modular and scalable retention system.


2️⃣ Sedimentation and Filtration Inside the Block
The built-in filtration system captures sediments and impurities within the JUMBO BLOCK® itself. This design prevents clogging and extends the lifespan of the system, while maintaining a continuous water flow.


3️⃣ Heavy-Duty Cover Plate
The cover plate provides an ultra-strong, load-bearing surface above the JUMBO BLOCK®. It enables heavy-duty applications like roads, airport runways, and industrial sites, while ensuring surface stability and protecting the system below.

A System of strength

4️⃣ Side Plate
Side plates are installed to enclose the JUMBO BLOCK® modules on the sides, preventing lateral water movement and ensuring system integrity. They help stabilize the overall structure and protect against shifting forces.


5️⃣ Base Plate
The base plate provides a stable foundation for each JUMBO BLOCK®, distributing the weight evenly and creating a secure, level base. This feature is essential for ensuring structural stability and longevity.


6️⃣ Sealing System
The sealing systems for JUMBO BLOCK® provide durable, waterproof solutions for module connections. Using high-performance adhesives and sealants, they securely seal joints and connections, preventing water loss and optimizing retention efficiency. Their flexible, durable materials ensure long-term functionality under varying conditions.

JUMBO BLOCK® Data

JUMBO BLOCK® Data

Load Capacity

Class F 900


Block Edge Length

2.5 m x 2.5 m x 2.5 m


Material

Primarily CO2-reduced concrete


Capacity

13.9 m³ water / block


Water column per block

2224 liters water / m²


Total system volume

Determined by the number of blocks installed.


Fast installation times

Ready for use immediately after installation!

Implementation

In times like these, the urgency of closed rainwater retention systems, such as the JUMBO BLOCK® system, becomes increasingly evident. Preserving our precious water resources and ensuring a reliable water supply are of critical importance for the future!


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