building repair & maintenance

1. Systematic Approach of
Investigations
Er. S S A Rufai
Principal SSM Polytechnic J&K

2. Steps Involved In Investigation
•Preliminary Investigation
•Testing
•Diagnosis
•Available information about Construction(including documents etc)
•Estimation of Load on Structure
•Environmental Effects
•Flaws in Design
•Defects in Construction
•Strengthening Requirement
•Relevant approach to repair

3. Investigation may Include:-
1. Actual load on the structure & its capacity
2. Cause of corrosion & degree of corrosion
3. Extent of defect( Local or spread over large area)
4. Cause of Dampness
(Ground, Drain /Pipe leakage, Condensation, Roof leakage, Leakage through bathroom walls /floor)
5.Types of defect in timber
6.Carbonation & depth of carbonation in concrete
7. Chlorides in concrete
8.Permeability of affected concrete

4. Systematic sequence for inspection