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Cement mortar composition and method for repairing concrete structure using the composition
The present invention relates to a cement mortar composition and a method for repairing a concrete structure using the same, wherein the cement mortar composition includes: 10-79 wt% of an inorganic-based binder, 20-80 wt% of a fine aggregate, 0.01-20 wt% of a durability improver, and 0.1-20 wt% of water. The durability improver includes 45-99 wt% of polyurethane, 0.1-15 wt% of phthalate, 0.1-15 wt% of polyol, 0.01-15 wt% of polyoxypropylenediamine, 0.01-15 wt% of methylenediphenyldiisocyanate, and 0.01-15 wt% of acetyl peroxide. According to the present invention, the cement mortar composition has strength, fluidity, elasticity, adhesive forces, watertightness, antiseptic properties, antistaining properties, deodorizing properties, neutralization resistance, salt resistance, acid resistance, wear resistance, fire resistance, and durability. In particular, the composition has excellent antiseptic properties, antistaining properties, salt resistance, acid resistance, and watertightness, so that the corrosion of concrete can be prevented, wherein the corrosion is caused by the chemical erosion of a concrete structure, a precast product, a sewer, a sewage pipe, a sewage culvert, an underground structure, and a water conduction tunnel under a bad environment, wherein the concrete structure includes a concrete structure, such as a sewage terminal disposal plant structure, a water concrete structure, and a hydraulic structure (an agricultural waterway, a water bridge, and a water gate structure). Also, the cement mortar composition has functions in controlling the corrosion of water flowing on a concrete structure and in removing smells, so that rivers can be prevented from being polluted and the water treatment abilities of a sewage terminal disposal plant structure can be improved. Accordingly, maintenance costs for a concrete structure can be remarkably reduced.
Cement mortar composition and method for repairing concrete structure using the composition
The present invention relates to a cement mortar composition and a method for repairing a concrete structure using the same, wherein the cement mortar composition includes: 10-79 wt% of an inorganic-based binder, 20-80 wt% of a fine aggregate, 0.01-20 wt% of a durability improver, and 0.1-20 wt% of water. The durability improver includes 45-99 wt% of polyurethane, 0.1-15 wt% of phthalate, 0.1-15 wt% of polyol, 0.01-15 wt% of polyoxypropylenediamine, 0.01-15 wt% of methylenediphenyldiisocyanate, and 0.01-15 wt% of acetyl peroxide. According to the present invention, the cement mortar composition has strength, fluidity, elasticity, adhesive forces, watertightness, antiseptic properties, antistaining properties, deodorizing properties, neutralization resistance, salt resistance, acid resistance, wear resistance, fire resistance, and durability. In particular, the composition has excellent antiseptic properties, antistaining properties, salt resistance, acid resistance, and watertightness, so that the corrosion of concrete can be prevented, wherein the corrosion is caused by the chemical erosion of a concrete structure, a precast product, a sewer, a sewage pipe, a sewage culvert, an underground structure, and a water conduction tunnel under a bad environment, wherein the concrete structure includes a concrete structure, such as a sewage terminal disposal plant structure, a water concrete structure, and a hydraulic structure (an agricultural waterway, a water bridge, and a water gate structure). Also, the cement mortar composition has functions in controlling the corrosion of water flowing on a concrete structure and in removing smells, so that rivers can be prevented from being polluted and the water treatment abilities of a sewage terminal disposal plant structure can be improved. Accordingly, maintenance costs for a concrete structure can be remarkably reduced.
Cement mortar composition and method for repairing concrete structure using the composition
LEE YONG KYO (author)
2016-02-03
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2016
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