3D Concrete Printing Matrix Reinforced with Geogrid (2021-07)¶

One of the most widely used Construction material is Concrete. The quality of the concrete is highly dependent on the material proportion which in turn depends on the application that it is being used for. In the conventional method, hike in the cost of the project is majorly synonymous to the use of formwork. And this gets added up with a list that includes safety issues, wastage of material, time elapse, space constrain, labour problems, etc. The aforementioned subjects can be made effective with the application of 3D Printing Techniques in Concrete Technology. This Paper targets on optimizing the mortar mix for 3D Printing Concrete with adaptable mineral and chemical admixtures. Use of accelerators reduced the final setting time to 95 min from conventional time of 310 min. Also the use of fly ash as replacement to sand enhanced the compressive strength to 30 MPa compared to conventional concrete that had 25 MPa. Other durability parameters were also improved compared to control mix.