Abstract
3D Printing concrete is new developed technology with no reinforcement or by providing reinforcement as like cable in the year 1987. The printing concrete is printed with the printer in different shapes and sizes. Size of aggregate used is very minimum which passes through the nozzle of printer. The strength of 3DPC is tested by compression, flexural, tensile, shear tests for identifying durability, extrudability, workability of printing concrete. The slump flow is carried for finding the flowability of concrete that passes through the nozzle of the printer. Fibers such as polypropylene, PVA, GGBS, Steel were used in addition of mix to increase the strength of 3DPC. Superplasticizers, Fly ash Silica fume, Geopolymer are used in concrete with percentage addition into the mix for raising the strength of the printing concrete. Result shows the strength of PC in different mix proportions along with varring size of specimens. Pumpabality and Buildability of printing concrete is analysed by slump flow test. Reinforcement for this concrete is provided as in form of cables that passes freely through nozzle for printing the concrete.
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