MICROCRACK SELF-HEALING TECHNOLOGY FOR CEMENT-BASED MATERIALS
Main article
Abstract
Crack self-repair technology of cement-based materials refers to the ability to repair cracks within the cement based material structure without external repair measures. It can be divided into engineering self-healing
technology and intrinsic self-repair technology, depending on the repair mechanism and the presence or absence of additional healing materials. In this paper, the mechanisms and characteristics of various crack self-repair
technologies are summarized, the recent research progress on crack self-repair in cement-based materials is discussed, and suggestions for future research directions are proposed. Many researchers have experimentally
demonstrated that mineral admixtures offer potential for improving the self-healing ability of microcracks in cement-based materials. However, the self-healing technology involving mineral additives is still in the exploratory stage, with limited and insufficiently systematic research findings. Further studies are needed to evaluate the effects of mineral additives on the self-healing performance of microcracks in cement-based materials, and to identify the composition and characteristic parameters of these mineral materials that enhance self-repair capacity. Such advancements would support the increased recycling of mineral additives, reduce construction waste, lower environmental pollution in the production of cement-based materials, and yield significant social, economic, and ecological benefits.
