Er.-Chirag-K-Baxi
Er. Chirag K Baxi, Director, Prudent Forensic Consultancy Private Limited., & General Manager, K K Retroflex Solutions

When a damaged or underperforming structure is taken up for its structural rehabilitation / retrofitting / strengthening, its execution requires to be planned considering surrounding climate and weather conditions. It is briefly addressed below.

  1. Ideally atmospheric temperature during such activities should be in the range of 270 C to 350 C. This is significant especially when the activity involves repair material having high exothermic polymerisation process. Lower atmospheric temperature than 270 C or higher than 350 C, has tendency to disturb thermal equilibrium between temperature of rehabilitation mass and atmospheric temperature.
    1. Use of ice is one of the essentials for taking up of these activities under high temperature.
    1. Concealing of conduits carrying cold water within the concrete matrix (by taking it into consideration right from design stage) and continuously blowing cold water throughout the activity of placing of micro-concrete; helps in minimising the adverse effects due to high temperature within the matrix as well as outside temperature.
  2. Atmospheric humidity also affects the velocity of polymerisation process. Polymerisation slows down during high humidity and hence rehabilitation activity can be scheduled when atmospheric humidity is normal as per the meteorological data. When resinous materials are involved in structural rehabilitation activity, polymerisation of its different ingredients drastically slows down under high humidity.
  3. However if it becomes absolutely necessary to execute the activity during high humidity, then the proportioning of water:powder ratio would need to be adjusted as per manufacturer’s advice.

We at Accord Specialities Contracting LLC have am inborne practice of keeping a close watch on surrounding atmospheric conditions affecting structural rehabilitation / retrofit / strengthening activities to execute them with all precautionary measures so that the rehabilitated structure performs as desired.

Accord Specialities Contracting LLC – one stop solution for structural rehabilitation / retrofitting / strengthening.