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Abstract: Although reinforced concrete structures are designed as per codes/standards but enough care is not always taken during construction process. As a result, the structures start showing signs of distress, some times less than 10 years of service life, requiring early repair and rehabilitation work. In this paper, a case study of 3 no. (G+8) multi-storeyed buildings badly damaged due to corrosion and Bhuj (India) earthquake of 2001, rehabilitated in 2003 has been presented. Repair strategy involved removal of delaminated carbonated concrete cover, application of rust remover, anti-corrosion coating, polymer bond coat, polymer modified mortar, injection of low viscosity epoxy grout to beam-column junctions and cracks, repair of masonry cracks with polymer modified mortar & grouting with SBR modified cement grout and jacketing of columns at the ground floor. Extensive material testing was carried out and specifications for acrylic and SBR polymer modified mortar were selected for durable repairs. Strict quality control and assurance both in material and workmanship was adopted. After nine years of successful rehabilitation and functioning, some signs of distress in the form of cracks and spalls due to rebar corrosion have been noted at some locations, requiring rehabilitation again. Some recommendations/conclusions have been given for durable concrete constructions and rehabilitation work. [Copyright &y& Elsevier]

Abstract: A bibliometric analysis based on Science Citation Index (SCI) published by Institute of Scientific Information (ISI) was carried out to identify the global research related to lead in drinking water field from 1991 to 2007 and to improve the understanding of research trends in the same period. The results from this analysis indicate that there have been an increasing number of annual publications mainly during two periods: from 1992 to 1997 and from 2004 to 2007. United States produced 37% of all pertinent articles followed by India with 8.0% and Canada with 4.8%. Science of the Total Environment published the most articles followed by Journal American Water Works Association and Toxicology. Summary of the most frequently used keywords are also provided. “Cadmium” was the most popular author keyword in the 17years. Furthermore based on bibliometric results four research aspects were summarized in this paper and the historical research review was also presented. [Copyright &y& Elsevier]