Experimental Study on Self-Healing Behavior of Engineered Cementitious Composites
This paper presents an experimental study on the self-healing effect of Engineered Cementitious Composites(ECC)under various conditions.First,specimens were fabricated using two different categories of fibers,and subjected to uni-axial tensile loading to reach different levels of pre-damages(non-linear strain).Then the specimens were treated in different curing conditions for self-healing.Finally,a series of tensile tests were conducted on the self-healed specimens to evaluate changes in peak tensile strength,tensile strain capacity,tensile modulus and etc.The test results shows the damaged ECCs after healing treatment restored their tensile strength,tensile strain capacity to a certain degree and partial tensile modulus.The damage level,fiber category and curing condition have significant effects on the mechanical properties of ECC after healing.
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