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Repairing and protecting layer for reinforced concrete structure body and construction method of repairing and protecting layer
The invention discloses a repairing and protecting layer for a reinforced concrete structure body and a construction method of the repairing and protecting layer. A repairing layer made of MPC mortar or a fiber MPC composite is constructed at the repairing part of an old concrete structure body, and a protecting layer made of MPC net paste and positioned on the outer side of the repairing layer is constructed on the surface of the reinforced concrete structure body. By full utilization of the performance advantages that the adhesion force of MPC base material and old concrete is strong, the chloridion permeation resistance is excellent and the concretion is early, strong and quick, and based on economy and permeation resistance optimization, color and luster of the material are adjusted through the change of mixing amount of silica ash and fly ash, the MPC mortar or fiber MPC mortar and the MPC net paste are used in a combined manner, the mortar material is used for reparation, the net paste material is used for protection, and finally the reinforced concrete structure repairing and protecting layer which is bright and smooth in surface, uniform in color and luster and excellent in permeation resistance is formed, so that the damaged concrete structure can be effectively repaired, and the thick and aesthetic magnesium phosphate cement protecting layer is formed outside the reinforced concrete structure body.
Repairing and protecting layer for reinforced concrete structure body and construction method of repairing and protecting layer
The invention discloses a repairing and protecting layer for a reinforced concrete structure body and a construction method of the repairing and protecting layer. A repairing layer made of MPC mortar or a fiber MPC composite is constructed at the repairing part of an old concrete structure body, and a protecting layer made of MPC net paste and positioned on the outer side of the repairing layer is constructed on the surface of the reinforced concrete structure body. By full utilization of the performance advantages that the adhesion force of MPC base material and old concrete is strong, the chloridion permeation resistance is excellent and the concretion is early, strong and quick, and based on economy and permeation resistance optimization, color and luster of the material are adjusted through the change of mixing amount of silica ash and fly ash, the MPC mortar or fiber MPC mortar and the MPC net paste are used in a combined manner, the mortar material is used for reparation, the net paste material is used for protection, and finally the reinforced concrete structure repairing and protecting layer which is bright and smooth in surface, uniform in color and luster and excellent in permeation resistance is formed, so that the damaged concrete structure can be effectively repaired, and the thick and aesthetic magnesium phosphate cement protecting layer is formed outside the reinforced concrete structure body.
Repairing and protecting layer for reinforced concrete structure body and construction method of repairing and protecting layer
DU YUBING (author) / WANG JIN (author) / ZHI ZHENGDONG (author) / YANG JIANMING (author)
2015-11-11
Patent
Electronic Resource
English
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