Where concrete structures have deteriorated due to corrosion and where changes in use and/or design code do not demand increase in loading capacity, Efficient repairing of concrete structures can be done by application of POLYMER MODIFIED MORTARS. In structural repairs include Polymer modified mortar. The buildings were originally constructed with concrete mix (1 cement: 1.5 sand: 3 coarse aggregates) with minimum strength requirement of 20 N/mm2 min., so it was decided that the polymer modified repair mortar must have compressive strength of 25 N/mm2. Based on the polymer test reports, concrete mix used in the construction of these buildings, extent of damage. Polymer Modified Mortar Contractors
In the old buildings, there are not enough non-ductile columns and they are spaced too far apart typically about 16 inches apart. The wrapping confines the columns, making them stronger and more ductile. That means the structure can tolerate more movement. Some of the most common problems facing in retrofitting includes air leakage, rising damp, under ventilation, overheating. Many buildings are still evaluated and retrofit using relatively simple force-based methods. Seismic Retrofitting or retrofitting of buildings is a suitable technology for protection of a variety of structures. Optimization techniques are needed to know the most efficient retrofit for a particular structure. The existing walls of a building are added certain thickness by adding bricks, concrete and steel. existing structures to be retrofitted may differ from those assumed when the structure was first designed and built, due to various factors at the construction stage as well as load action and environmental action during use. When retrofitting of buildings of existing structures is being studied, performance items specified as performance requirements shall be examined to verify whether or not the structure has the required performance at the time of the study.