Cracking on Floor

Factor

• Drying Shrinkage.
• Step Placement of Concrete from well barrow.
• The fast evaporation process.

How to overcome

• The dump placed correctly into the face of concrete.
• The time to place concrete must suitable.

Cracking on Beam

Factor

• Corruption of reinforcement.
• Quality of concrete is less.
• Standard form of cover concrete is not followed.

How to Overcome

• Use quality concrete.
• Use water free from from other particles.
• The contractor has to be honestly.

Cracking on the Column

Factor

• Silt of plastic.

How to overcome

• Perfect vibration.
• Perfect Curing.

Cracking on Wall

Factor

• Joint ineffective.
• Curing process is not sufficient.

How to overcome

• Plaster back on the surface.
• Make the process of curing on time.

Factor on concrete damage

• Design errors.
• Construction errors.
• The problem of quality of construction materials.
• Geotechnical problems.
• Problems that cannot be predicted.

Design errors

• Errors can occur when making the assumption the total cost, followed by carelessness when making detailed.
• The design process using the standard code can produce work that is not well satisfied.
• The designer must balance between the theoretical and practical design.
• Errors in design will lead to cracks due to excessive stress applied to the structural elements.

Errors during construction

• Communication between the engineer and contractor should be agree well.
• Job skills are main factors to the occurrence of any structural damage.

Materials quality problems

• To produce high quality concrete, the materials used, such as cement and aggregates must be in good condition and meet the set specifications.
• All contractors working on construction sites should be monitored to ensure good quality work.

Geotechnical Problems

• Geotechnical problem refers to the basic structure or pile and the soil itself is a problem.
• Insufficient number of piles during piling or error, or is likely also the loss of soil bearing strength due to the close working.

Problems cannot be predicted

• Explosion Effect
• Effects of Accident
• Earthquake Effects
• Concrete Deterioration
• Fire effects