Blowing bubbles: Concrete construction technique uses inflatable membranes

From Superinnovators 25/09/23. This article is in TLDR (Too Long Didn’t Read) format which is popular in the innovation community and provides a bullet summary of information.

• Binishells technology overview: Originating in the 60s, Binishells introduces a groundbreaking construction method that involves pouring or spraying concrete over inflatable “pneumoforms”. This technique, refined over decades, allows for the creation of unique, durable, and eco-friendly domed structures, with over 1,600 shells built across 23 countries.

• Building process – inflation: System A, the latest technique, begins with the inflation of a “pneumoform.” Once inflated and pressurised, it is checked to ensure it conforms to architectural drawings.

• Reinforcement and concrete application: Standard steel reinforcement bars (rebar) are added and tied to the inflated form. After inspection and approval, “shotcrete” concrete is applied. This fast application allows for large structures, like a 5,500 square foot shell, to be constructed in just a day.

• Curing and reuse: After the concrete is applied and allowed to cure, the pneumoform is deflated and can be reused 50 to 100 times, minimising waste.

• Versatility: Binishells can be constructed in an infinite variety of shapes and sizes, from large multi-story public structures to small condominiums. The lack of interior bearing structures allows for total flexibility inside, and the exteriors can be designed in almost any shape.

• Safety: Binishells structures are inherently safer than traditional systems in earthquakes due to the even distribution of forces. Their aerodynamic nature also makes them safer in high winds, and their non-combustible nature provides resistance to fires.

• Environmental considerations: Binishells structures are designed to be energy-efficient, with a focus on eliminating thermal bridges, which can lead to significant energy losses. They also require fewer material resources, reducing their environmental impact.

More info

https://binishells.com/

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