In order to verify the mechanical properties of continuous fiber 3D printing concrete,the tensile strength and flexu-ral/compressive strength of mortar were tested by casting and 3D printing respectively.The results show that the composite of dif-ferent continuous fibers increases the tensile strength of mortar by 2％～19％.However,due to the poor wear resistance of continu-ous mineral fibers,it reduce the flexural strength to varying degrees,but increase the compressive strength of mortar.The tensile strength of the continuous mineral fiber reinforced mortar increases with the increase of the number of continuous basalt fibers,but it is not linear.The composite use of continuous fiber and chopped fiber has a synergistic effect on the tensile and flexural strength of mortar,and also helps to reduce the adverse effects of chopped fibers on compressive strength.However,its compressive strength is still lower than that of plain mortar.
关键词
连续矿物纤维/3D打印/水泥基材料/力学性能
Key words
continuous mineral fiber/3D printing/cement-based materials/mechanical properties
维普
万方数据