HIGHLY DURABLE CROSS-SECTION REPAIRING MATERIAL

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PROBLEM TO BE SOLVED : To provide a cement based cross-section repairing material stably having high sulfuric acid resistance and mid-and-long term strength developability without deteriorating workability in the application of a Portland cement based mortar composition having high assimilation to a concrete structure or the like as the cross-section repairing material for the structure. SOLUTION : The high durable cross-section repairing material contains (A) Portland cement, (B) slag having 0.75-3.0 m2/g BET specific surface area, (C) flyash or/and meta-kaolin, (D) silica fume and (E) a quick lime based expansive material and additionally contains one or more kinds of (F) a polymer dispersion or a re-emulsifying type powdery resin, (G) a water retaining agent and (H) a dispersant. COPYRIGHT : (C)2007, JPO&INPIT