TH96022B - Self-healing cement for use as an ingredient in self-healing mortar or self-healing concrete. - Google Patents

Abstract

------20/07/2023------(OCR) This invention relates to self-healing cement for use in preparing self-healing mortar or self-healing concrete for use in mortar or concrete that must come into contact with water, such as waterproof walls, retaining walls, underground structures, etc. The dry basis self-healing cement consists of Portland cement Type 1 in the proportion of 85-90 percent by weight, an expansive additive in the range of 5-16 percent by weight, a permeability reducing admixture in the proportion of 0.5-1.5 percent by weight, sodium carbonate in the proportion of 0.1-0.3 percent by weight, and a set retarder in the proportion of 0.01-0.10 percent by weight of the self-healing cement. (Self-healing cement) The experimental results found that self-healing mortar prepared from self-healing cement according to this invention can fill cracks with a width of not less than 0.5 mm. ------------ DC60 (16/07/56) This invention relates to self-healing cement for use in preparing self-healing mortar or self-healing concrete used in mortar or concrete that must come into contact with water, such as waterproof walls, retaining walls, underground structures, etc. The ingredients of this dry basis self-healing cement consist of Portland cement Type 1 in the proportion of 85-90 percent by weight, expansive additive in the range of 5-15 percent by weight, and water permeability reducer. (Permeability reducing admixture) in the proportion of 0.5 - 1.5 percent by weight, sodium carbonate in the proportion of 0.1 - 0.3 percent by weight and set retarder in the proportion of 0.01 - 0.10 percent by weight of self-healing cement. From the experimental results, it was found that self-healing mortar prepared from self-healing cement according to this invention can close cracks with a width of not less than 0.5 mm. This invention relates to self-healing cement for use in preparing self-healing mortar or self-healing concrete used in mortar or concrete works that must come into contact with water, such as waterproof walls, retaining walls. Underground structures, etc., where the dry basis self-healing cement mixture consists of Portland cement Type 1 at a ratio of 85-90 percent by weight, expansive additive at a ratio of 5-15 percent by weight, permeability reducing admixture at a ratio of 0.5-1.5 percent by weight, sodium carbonate at a ratio of 0.1-0.3 percent by weight, and set retarder at a ratio of 0.01-0.10 percent by weight of the self-healing cement. The experimental results showed that the self-healing mortar prepared from the self-healing cement according to this invention can fill cracks with a width of not less than 0.5 mm.