Lightweight concrete with controlled pores by 3D printed micro frame
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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.
- 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
There is an increasing industrial need for lightweight concrete materials that can sustain high levels of compressive strength.
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.
Licensing
10/03/2017 00:00:00
PCT/AU2017/050216
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
2016-003
Australia
