Experimental study on layer bonding property of 3D printing building materials

Abstract

Bonding properties between 3D printing building materials layers are tested, including tensile strength test, shear strength and bending strength test of 3D printing building materials. The failure process and failure modes of 3D printing building materials are focused on analysis in this paper. Experimental results indicate that there are weak adhesive layers in the 3D printing building materials, specimen failure occurs in the weak adhesive layer. The tensile strength average value of 3D printing building materials is 0.74N/mm2. The shear failure of 3D printing specimen is not occurred, but bending failure. The bending strength average value of 3D printing building materials is 0.88N/mm2.