👉 Reasons for cause and description of type of cracks

👉 Reasons for cause and description of type of cracks


1. Diagonal Cracks

The main cause of diagonal cracks in concrete columns is
👉 Inadequate load carrying capacity of the columns;
👉 insufficient cross-section and inadequate reinforcement steel.
👉 Diagonal Cracks would influence structural soundness and hence it needs to be dealt with.

2. Horizontal Cracks

👉 Horizontal crack in reinforced concrete column is observed to initiate mostly at the beam-column junction, and on column face where tensile stress is large.
👉 Columns with in adequate moment resistance capacity,
👉 Insufficient reinforcements, or disposition of installed reinforcement are prone to horizontal cracking

👉 Horizontal cracks substantially reduce the shear strength of the column leading to a greatly increased risk of failure. So, it is required to be tackled as soon as

3. Splitting Cracks

👉 Splitting cracks in reinforced concrete column are short parallel vertical cracks with non-uniform width.
👉 Columns with Insufficient steel reinforcement, and low concrete quality are susceptible to experience such types of cracks.
👉 Splitting cracks in concrete columns initiated as a result of reaching its maximum load carrying capacity.

4. Corrosion Cracks

👉 Corrosion cracks in concrete columns are developed along the line of reinforcements.
👉 This type of cracks is commonly uniform in width and widen as the column is ageing.

👉 Possible reinforcement corrosion and inadequate bond between concrete and steel bars are the cause of corrosion reinforcement in concrete columns. .

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