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Volume :32 Issue : 2 2005      Add To Cart                                                                    Download

Effectiveness of the repair materials in the honeycombed reinforced concrete beams

Auther : M. ABDEL-ROHMAN

Civil Engineering Department, Kuwait Unviersity,

PO Box: 5969, Safat, 13060, Kuwait

E-mail: marohman@civil.kuniv.edu.kw

 

ABSTRACT

 An experimental investigation was  carried out to study the effectiveness of various repair materials for honeycombed reinforced concrete simply supported beams.  The honeycombs were made at different locations for theree groups of beams.  One group of beams had the honeycombs located near the extreme tension side at mid-span.  The second group of beams had the honeycombs located near the extreme compression side also at mid-span.  The last group of the beams had the honeycombs located near the supports at regions of high shear stresses.  The repair materials considered were three different types of mortars made of Portland cement and fine sand, a repair mortar with bonding agent and a commercial repair material.  This paper shows the effectiveness of these repair materials on the perfomance of beams up to the serviceability deflection limit and the ultimate strength of the repaired beams as compared to the ideal beam without honeycombs.

 

Keywords: Bond agents, fexural strength; honeycombs; reinforced concrete beams; repair materials, repair of structures, servicemability, shear strength.

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