Asphalt, the surface layer portion repair for cement mortar composition of concrete pavement

摘要

PPROBLEM TO BE SOLVED: To provide a composition for cement mortar capable of forming a smooth worked surface easily, capable of obtaining strength development in a short material age, having excellent workability in summer or on a sloping land and being favorably used for the filling work at a pavement repair around a manhole cover, a fire hydrant cover, a ditch cover and the like. PSOLUTION: The components of the composition for cement mortar are portland cement, a rapid curing material, an aggregate, a fibrous material having length of 3-30 mm, a water reducing agent and a setting modifier. The containing ratio of the aggregate to the total amount of portland cement and the rapid curing material of 100 pts. mass is 160-300 pts. mass. PCOPYRIGHT: (C)2005,JPO&NCIPI