| 摘要 |
PROBLEM TO BE SOLVED: To provide a cement composition capable of yielding a mortar composition that can be used for trowel mortar such as tile ground material, plastering material, wall material, and so on, or for filling mortar for filling gap parts, and that has a good unit volume mass, a good trowel workability and a good filling property as well as an excellent surface accuracy, and further to provide a cement composition capable of forming a mortar cured product having good strength and adhesion properties that are necessary for the integration with the concrete structure.SOLUTION: A cement composition that comprises: Portland cement; fine aggregate; light-weight aggregate; fly ash fine powder; cellulosic thickener; and material separation reducing agent and in which the light-weight aggregate is expanded polystyrene ground product and pearlite aggregate, the Blaine specific surface area of the fly ash fine powder is in a particular range, and the material separation reducing agent is high molecular weight synthetic co-polymer. |
