The road itself absorbs 4,000 liters of flooded water in a minute

A construction materials company in England introduced magic concrete that can suck 4,000 liters of water in a minute, which is expected to be a useful solution when flooding occurs.

Water-proof concrete is called Topmix. It is designed with a super-absorbent coating, allowing water to penetrate the surface quickly and avoid stagnation.

According to Bussiness Insider, traditional concrete can only absorb 300mm ³ water per hour. Meanwhile, Topmix Permeable concrete is capable of absorbing up to 36,000mm ³ water / hour. If calculated on average, each concrete pavement using this type of concrete can absorb 600 liters of water per minute.

Topmix - Extremely good water absorbent concrete.(Snapshot from video).

Reportedly, this impressive product comes from Tarmac, a British construction materials and construction solutions company. Topmix Concrete was created in the company's effort to address the flooding after every storm in the cities.

Craig Burgess, Tarmac's product development manager, said that although the new company was a few months old, Topmix concrete technology has been developed over the past six years.

"One of the big problems of applying super-absorbent concrete to the pavement is that it requires constant maintenance," Burgess said, "When water seeps under the concrete, it can mix with dirt. and fill the holes below, thereby reducing water permeability ".

However, Burgess said Tarmac has avoided this problem by using a technique that allows concrete to retain its porosity and superior permeability over time.

Topmix concrete asphalt layer of concrete Topmix.

It is known that instead of normal sand-mixing concrete, Topmix concrete is a kind of rough concrete (no-fines). This concrete is made up of a mixture of small pieces of granite that are arranged side by side and covered with a super absorbent bitumen above. Burgess said it was an extremely pure granite mixture and arranged to create enough space for water to easily flow through.

Currently, there are three Topmix concrete designs for builders to choose from: complete osmosis, partial osmosis and complete osmosis.

There are three Topmix concrete designs so that builders can choose .

Fully penetrating is how Topmix concrete design allows rain water to penetrate through to penetrate to the ground. This design is extremely useful in areas of heavy rain and does not need to put heavy demands on water collection.

Partly absorbed is how to design Topmix concrete with a semi-permeable system below that allows a part of rainwater to flow into a nearby sewer, while the rest continues to seep into the ground. This design is useful when the soil beneath the concrete cannot withstand too much water to penetrate.

Topmix's complete osmosis design is a concrete design system with a water collection system below. This system will capture all of the rainwater falling on the surface of the concrete. This design is useful in areas that lack clean water and need to recycle rainwater for domestic use.

Cities can optionally choose one of the Topmix concrete designs mentioned above to build, depending on their current use needs.

Topmix concrete only does not work well in cold weather conditions and water freezes. That means that this type of concrete can work well and promote its usefulness in countries with hot, humid, rainy weather like Vietnam. It is known that in the tests, Topmix concrete is ideal for driving at speeds below 48km / h under moderate light conditions.

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