Previous year question paper for RMB (Diploma Civil Engineering 6th)

1. Need for Maintenance (06 hrs)

1.1 Importance and significance of repair and maintenance of buildings

1.2 Meaning of maintenance

1.3 Objectives of maintenance

1.4 Factors influencing the repair and maintenance

2. Agencies Causing Deterioration (Sources, Causes, Effects) (06 hrs)

2.1 Definition of deterioration/decay

2.2 Factors causing deterioration, their classification

2.2.1 Human factors causing deterioration

2.2.2 Chemical factors causing deterioration

2.2.3 Environmental conditions causing deterioration

2.2.4 Miscellaneous factors

2.3 Effects of various agencies of deterioration on various building materials

i.e. bricks, timber, concrete, paints, metals, plastics, stones

3. Investigation and Diagnosis of Defects (06 hrs)

3.1 Systematic approach/procedure of investigation

3.2 Sequence of detailed steps for diagnosis of building defects/problems

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3.3 List non-destructive and others tests on structural elements and materials

to evaluate the condition of the building and study of three most commonly

used tests

4. Defects and their root causes (06 hrs)

4.1 Define defects in buildings

4.2 Classification of defects

4.3 Main causes of building defects in various building elements

4.3.1 Foundations, basements and DPC

4.3.2 Walls

4.3.3 Column and Beams

4.3.4 Roof and Terraces

4.3.5 Joinery

4.3.6 Decorative and protective finishes

4.3.7 Services

4.3.8 Defects caused by dampness

5. Materials for Repair, maintenance and protection (06 hrs)

5.1 Compatibility aspects of repair materials

5.2 State application of following materials in repairs:

5.2.1 Anti corrosion coatings

5.2.2 Adhesives/bonding aids

5.2.3 Repair mortars

5.2.4 Curing compounds

5.2.5 Joints sealants

5.2.6 Waterproofing systems for roofs

5.2.7 Protective coatings

6. Remedial Measures for Building Defects (18 hrs)

6.1 Preventive maintenance considerations

6.2 Surface preparation techniques for repair

6.3 Crack repair methods

6.3.1 Epoxy injection

6.3.2 Grooving and sealing

6.3.3 Stitching

6.3.4 Adding reinforcement and grouting

6.3.5 Flexible sealing by sealant

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6.4 Repair of surface defects of concrete

6.4.1 Bug holes

6.4.2 Form tie holes

6.4.3 Honey comb and larger voids

6.5 Repair of corrosion in RCC elements

6.5.1 Steps in repairing

6.5.2 Prevention of corrosion in reinforcement

6.6 Material placement techniques with sketches

6.6.1 Pneumatically applied (The gunite techniques)

6.6.2 Open top placement

6.6.3 Pouring from the top to repair bottom face

6.6.4 Birds mouth

6.6.5 Dry packing

6.6.6 Form and pump

6.6.7 Preplaced – aggregate concrete

6.6.8 Trowel applied method

6.7 Repair of DPC against Rising Dampness

6.7.1 Physical methods

6.7.2 Electrical methods

6.7.3 Chemical methods

6.8 Repair of walls

6.8.1 Repair of mortar joints against leakage

6.8.2 Efflorescence removal

6.9 Waterproofing of wet areas and roofs

6.9.1 Water proofing of wet areas

6.9.2 Water proofing of flat RCC roofs

6.9.3 Various water proofing systems and their characteristics

6.10 Repair of joints in buildings

6.10.1 Types of sealing joints with different types of sealants

6.10.2 Techniques for repair of joints

6.10.3 Repair of overhead and underground water tanks