Cracks in Buildings

CRACKS IN BUILDINGS: Some Remedial Measures Dr. J. N.Jha Professor and Dean (Consultancy) Department of Civil Engineering Guru Nanak Dev Engineering College, Ludhiana

IS THAT CRACK SERIOUS? ,[object Object],[object Object],[object Object]

Classification of Cracks Internal induced stress in building material Incorrect design Faulty construction Overloading Non structural crack Structural crack

Continue… ,[object Object],[object Object],[object Object],[object Object],[object Object]

Classification of cracks (Based on width) < 1 mm 1-2 mm > 2 mm Thin Medium Wide Width Type

Common sight of crack Uniform throughout Narrow at one end and gradually widening at the other Straight Toothed Stepped Map pattern Random Vertical Horizontal Diagonal

Internal stress in Building component ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Present trend in construction ,[object Object],[object Object],[object Object],[object Object],[object Object]

Cause of cracks in buildings ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Moisture Movement ,[object Object],[object Object],[object Object],[object Object],[object Object]

Types and causes of cracks in Concrete ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Continue… ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Continue… ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Plastic shrinkage cracks ,[object Object],[object Object],[object Object],[object Object],[object Object]

Measure to reduce plastic crack ,[object Object],[object Object],[object Object],[object Object],[object Object]

Settlement shrinkage ,[object Object],[object Object],[object Object]

Measure ,[object Object],[object Object]

Bleeding ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Continue… ,[object Object],[object Object],[object Object]

General Observations ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Delayed Curing ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Constructional Effects ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Unsound Material ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Thermal expansion and shrinkage ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Cracks in Buildings

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Cracks in Buildings