This project explores the development of a simple DIY aircrete mixer and gun for producing Aircrete. Aircrete is a fascinating material a mix of cement and foam that can be made extremely lightweight, poured into different shapes and moulds, it can be cut and shaped and offers useful properties such as insulation and fire resistance. It also has the potential to provide a relatively affordable approach to building.
The aircrete gun itself is an experiment in creating the tools needed to make aircrete more accessible. The design was developed using Fusion 360 and 3D printing, rather than relying on expensive or specialized equipment.
As with many of the projects shared through Simple Living Innovations, this has been an evolving process. Early experiments produced some successful aircrete bricks, while later attempts presented unexpected challenges. In particular, we discovered that the mineral content of the water being used could interact with the foaming agent and affect the stability of the air bubbles within the mix.
The aircrete gun is still very much a work in progress, with several versions already developed and further improvements likely to come. The intention is to keep experimenting, learning, refining and sharing what we discover along the way.
The CAD files and 3D-printable files for this project will also be shared, allowing others to build their own versions, experiment with the design and hopefully contribute ideas and improvements of their own.
If you’d like more information about the aircrete gun, the experiments behind it, or would like to share an idea or suggestion, feel free to get in touch through the Contact page. We’d love to hear from others interested in exploring simple, accessible approaches to building.