The stiffness and elasticity of polymer-coated pumice a potential method for reinforcing concrete 3D printing structures

Pumice has been used successfully as a lightweight aggregate concrete replacement (LWAC). Pumice, on the other hand, absorbs a lot of water during the mixing process, which might impair the strength of the concrete. This research examines the influence of coated pumice in concrete mixes on beam flexural strength and stiffness in order to avoid excessive water absorption and acknowledges concrete extrusion-based 3D printing's potential to revolutionize the construction sector. By getting rid of the need for formwork, 3D printing is expected to cut the cost of building civil engineering structures, speed up construction, and make working conditions better. Because of the layer-by-layer additive manufacturing process, it is necessary to alter the way concrete buildings are constructed and strengthened, particularly in areas subject to stress loads. The findings reveal the flexural strength of coated pumice was compared to that of untreated pumice and was found to be 2.58 percent higher. In addition, it also reveals that inclined nails may be utilized in a variety of orientations to provide printing materials with flexural strength.