Influences of geometric patterns of 3D spacer fabric on tensile behavior of concrete canvas

• A promising concrete reinforcement material was introduced for new concrete applications.
• Influences of geometric patterns of 3D spacer fabric on the tensile behavior of concrete canvas were investigated.
• Concrete canvas reinforced by 3D spacer fabric with one solid outer textile substrate exhibited improved tensile behaviors.
• 3D spacer fabric reinforcement was a better option than spacer yarns alone.

In this study, influences of geometric patterns of 3D spacer fabric on the tensile behavior of concrete canvas (CC) were investigated. Five 3D spacer fabrics with different geometric patterns were investigated. Tensile stress–strain curves and crack propagating patterns of CCs were obtained in warp and weft directions through experiments. Experimental results revealed that the CC samples reinforced by the 3D spacer fabrics with one solid outer textile substrate exhibited improved tensile behaviors in terms of tensile strength, reinforcing efficiency factor and crack pattern. Moreover, for CCs, 3D spacer fabric reinforcement was a better option than spacer yarns alone.