Mr. G. Vaseeharan & Mr. G. Vithurshan Dr. Achala Pallegedara
Additive manufacturing technology is the most valuable key of the third industrial revolution. Material use for 3D printing of concrete is one of the critical success factors of 3D printing technology in the construction industry. The result of the additive manufacturing technique, 3D printed structures usually consist of several layers that should exhibit bond to guarantee an accepted structural design. This paper focuses on heat release rate during the hydration of cement and thermal analysis of concrete material. The investigation was carried out by an approach based on finite element (FE) analysis. The differential equation for the hydration model is derived from Fourier’s law. The model validates cement material with different mineral compositions, water cement ratio, curing temperatures and ambient temperature. Further, the model is verified against COMSOL-Multiphysics and simple shape hydration model. The bond strength between the layers is reduced for increasing inter-layer interval times. The research also concluded that the temperature variation during the hydration process affects the strength of the cement material.