MORTAR REPAIRED REINFORCED CONCRETE STRUCTURE

A repaired reinforced concrete structure is provided which includes one or more reinforcing steel bars of cross-sectional area Ax, the one or more reinforcing steel bars having one or more corroded sections of cross-sectional area Ay, wherein Ay is greater than or equal to approximately 0.6 Ax. A re...

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Bibliographische Detailangaben
Hauptverfasser:	Kai Yin TO, Kin Ying Christopher LEUNG, Yuet Kee LAM, Honggang ZHU, Shue Kai CHOU
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BUILDING BUILDING IMPLEMENTS OR OTHER BUILDING AIDS, OR THEIRUSE FIXED CONSTRUCTIONS FORMS HANDLING BUILDING MATERIALS ON THE SITE REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTINGBUILDINGS SCAFFOLDING SHUTTERING
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Beschreibung
Zusammenfassung:	A repaired reinforced concrete structure is provided which includes one or more reinforcing steel bars of cross-sectional area Ax, the one or more reinforcing steel bars having one or more corroded sections of cross-sectional area Ay, wherein Ay is greater than or equal to approximately 0.6 Ax. A reinforced ordinary Portland cement-based repair mortar is positioned directly on the one or more corroded sections of the one or more reinforcing steel bars without the addition of a lapped reinforcing steel bar. The reinforced repair mortar includes at least approximately 1 percent by volume of reinforcing steel fibers such that the reinforced repair mortar restores a strength of a repaired region to greater than approximately 100 % of an original strength of a same region of concrete structure in an uncorroded state. The repair mortar is highly durable, exhibiting an air permeability resistance of greater than 1000 seconds.