Abstract
This research examined the granules for the purpose of carrying out efficient self-healing of cracks accompanied by leakage of water efficiently. The granules coated self-healing material on the surface of fine aggregate by making fine aggregate into a core. The granules coated［self-healing material which contains a clay mineral by making hill sand into a core］, and the granules coated［cement material which serves as slag stimulus material by making blast-furnace-slag sand into a core］were produced. We experimented by replacing 60-240kg/m3 of these granules with the sand of mortar. As a result, the mortar mixed with the self-healing material containing a clay mineral with powder, or plain mortar using blast-furnace-slag sand, fresh quality has been improved and the mortar which was mixed with these granules confirmed that the amount of leakage of water decreased.
