Polymer-modified ferrocement enhances strength of reinforced concrete beams

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Abstract

This paper reports on some of the results of on-going research in the development of a reinforced repair mortar to be used in enhancing the strength of downgraded reinforced concrete beams. Following the encouraging progress made in the formulation and evaluation of the plain repair mortar, preliminary tests were carried out involving the application of the reinforced repair material to the soffit of model reinforced concrete beams of 1 m length. The results of six beams are presented from a particular series of tests. The application of the polymer-modified ferrocement to the beams was found to lead to increased ultimate flexural strength and ductility, without any occurence of bond failures.

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Present address: Engineering Design Centre, City University, Northampton Square, London EC1V 0HB, UK

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