CAUSES FOR DEFECTS IN CONCRETE STRUCTURES

Causes of defects in concrete structures can be broadly categorized as: i) Structural deficiency resulting from errors in design, loading criteria, unexpected overloading, etc. ii) Structural deficiency due to construction defects. iii) Damage due to fire, floods, earthquakes, cyclones etc. iv) ...

CONCRETE DAMAGES, DEFECTS AND PREVENTION

Concrete structure damages, defects and its prevention Concrete structures get damaged or defective during its lifetime. The causes for such damages or defects can be many such as poor quality control during construction, overloads on structure, natural calamities, environmental factors etc. ...

CAUSES OF CONCRETE DAMAGE IN STRUCTURES

Multiple causes of concrete damage in structures should be suspected whenever damage or deterioration is discovered in concrete.  Concrete has the benefit of the use of various admixtures and advanced concrete materials technology.  Such concrete should not be damaged by many ...

THERMAL CRACKING OF CONCRETE AND PREVENTION

Thermal Cracking of Concrete and Prevention Temperature difference within a concrete structure may be caused by portions of the structure losing heat of hydration at different rates or by the weather conditions cooling or heating one portion of the structure ...

LONG TERM SHRINKAGE CRACKING OF CONCRETE

Long Term Shrinkage Cracking of Concrete: Shrinkage is the inherent property of cement paste, which in pure form may shrink up to 1%. Aggregate provides internal restraint that reduces the magnitude of this volume change to about 0.06%. Shrinkage also occurs ...

SEALING VARIOUS JOINT TYPES IN BUILDINGS

  Sealing of Various Joint Types in Buildings Protection systems of joints include the sealing of cracks, contraction (control) joints, expansion joints, and construction joints. Joint sealants in concrete minimize the intrusion of liquids, solids, or gases, and protect the concrete against ...

DISTRESS OF CONCRETE AND REMEDIAL MEASURES

Distress in concrete members occurs with age due to corrosion in reinforcement, loading, settlement of foundations etc. This distress in in building can be found by development of cracks in concrete members such as slabs, beams, columns etc. The cracking of ...

Injection Grouting Types and Materials for Concrete Crack Repair

Injection grouting is a process of filling the cracks, voids or honeycombs under pressure in concrete or masonry structural members for repairing of cracks, strengthening of damaged concrete or masonry structural members. Grout is a flowable plastic material and should have ...

CEMENT GROUTING FOR CRACKS IN CONCRETE AND MASONRY

Cement Grouting in cracks in concrete and masonry: Wide  cracks,  particularly  in  mass  concrete  abutments / piers  and  masonry substructures  can be  repaired  by  filling  with  portland  cement  grout.  This method  is  effective  in  sealing  the  crack  in  concrete,  but  it  ...