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Lightweight concrete with controlled pores by 3D printed micro frame

總結: A novel process for producing lightweight concrete structures with increased compressive strength. This novel process can precisely control the size, quantity and distribution of air voids to achieve a higher strength than any other traditional foam concrete.

技術優勢: - Increased compressive strength with reduced weight
- Non-brittle and high capacity at large strain/deformation
- Precise control of properties through design process
- Increased energy adsorption during loading

技術應用: There is an increasing industrial need for lightweight concrete materials that can sustain high levels of compressive strength.

詳細技術說明: Monash researchers have invented a process for precisely controlling the shape, size and distribution of air voids within concrete structures. The result is increased compressive strength whilst simultaneously reducing weight, giving a foam concrete that meets the need for strength combined with light weight.

To achieve the precise control of the pore properties, three-dimensional micro-frames are covered with specific cement paste mixtures. Surface tension of the cement paste aligns it into sheets in the direction of the micro-frame lattice. This results in highly aligned, thin-walled concrete sections of almost any shape.

Structures have been produced with a compressive strength of up to 7.5MPa whilst simultaneously having a dry density of 445 kg/m3.

其他: Monash seeks a partner to license this exciting new construction technology.

The Monash research team is led by Wenhui Duan, ARC Futures Fellow – Structural Engineering. Dr Duan and his team at Monash Civil Engineering are expert in cement and concrete composites

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