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Geopolymer building structures layer by layer instead of molding them with formworks could open up the the architectural design in big way and decrease the construction cost significantly. It successfully create roads by separately using portland cement and geopolymers as binders. It sets as binding agents using geopolymer particles as the cement extrude into solid concreter structure.
How 3DCP Works
MudBots provide the best solutions, after-service trainings, and technical support on 3D Concrete Printers. Find out how it works.
Concrete printing is possible with the construction of a large 3D printer capable of printing large scale structures, from spas and barbeques to homes and larger commercial buildings, without the need of traditional framing, forming or blocks. MudBots offers printers from 10' x 10' up to 100' x 100'.
There are hundreds of different mix formulas that closely resemble a mortar type mix. Each mix requires months of testing for different characteristics, such as fluidity, bonding, water impenetrability, Seismic resistance, as well as curing and strength. Mixes are designed for 1200 PSI up to 10,000 PSI, depending on the structure and engineered objectives.
First step is to decide what you want to print.
The next step is to conceptualize a 2D design using a CAD program, and then converting the design to a 3D model using any 3D software that can export an STL file.
Once the 3D model is ready, the STL file is imported into a slicing software, where the height of each printed pass is specified.
After slicing the model into individual print passes, the system exports the code which is interpreted into actual nozzle movement.
The mix is batched on site after which, the liquid ingredients are added to the dry mixes and mixed for delivery to a computer-controlled pump, which works in unison with the printer to control nozzle speed, and the volume rate of material at the nozzle.