Dos
- Design the structural rehabilitation scheme and methodology after systematically assessing, evaluating and analysing the structural damages.
- Ensure availability of total quantity of tools, tackles, equipment and construction consumables before starting the work.
- Ensure overall safety measures for the structure when a part of it is being taken up for rehabilitation.
- Ensure transfer of load of additional rehabilitation mass upto the foundation.
- Ensure compatibility of construction chemicals with surrounding environment and core conditions.
- Ensure appropriate and optimum pressure for injection grouting activity commensurate with the properties of material which is being injected.
- Ensure scaffolding, strutting and supporting the formwork to receive free flow rehabilitation mass because its heat of exotherm exerts huge pressure on the formwork.
- Ensure application of resinous applications only under moisture free conditions.
- Protect the rehabilitated structure with protective coating to safeguard the rehabilitated structure from corrosive conditions.
Don’ts:
- Ensure that the rehabilitation activity doesn’t cause environmental hazards.
- Avoid total thickness build up of more than 50 mm for application of polymer modified mortar.
- Avoid loading the rehabilitated member before its stipulated setting and curing period.
- Avoid execution under humid or high temperature period.
- Avoid over-safe design for structural rehabilitation as it is uneconomical and may prove to be unsafe for the rehabilitated member at long run.
