Building repairs and maintenance

                 Building repairs and maintenance

 

Question 1--What is building repair and maintenance?

Answer -1 Building repairs and maintenance services mainly includes works undertaken for maintaining proper condition of buildings, its services and works in ordinary use. The use for which buildings are designed is the main factor in determining the required standard of maintenance

Questio-2What are the facets of maintenance?

Answer-2  Maintenance operations have many facets such as :

1.      Condition based maintenance

      2. Fixed time maintenance

      3. Preventative maintenance :

Question-3 What is repair and rehabilitation?

 Answer-3

 A] Repair is the process of restoring something that is damaged or deteriorated or broken, to good condition.

B] Rehabilitation is the process of returning a building or an area to its previous good conditions

Question-4 What are the steps in selecting a repair procedure?

 Answer_4 The steps of concrete repair include- investigating the cause behind the defect in concrete, assessing the extent and severity of the damage, evaluating the need for repair work, selecting suitable repair technique and materials, reparation process preparation, application of the repair technique, and, finally, curing

Question-5 Why is building maintenance important?

Answer-5  Regular and proper maintenance of a building ensures that it is maintained properly, free from damage,costly repair bills and the need for urgent repairs. A facilities management company will schedule regular repairs at periodic intervals to make it easier. Whereas, emergencies are unpredictable and can be constantly monitored from time to time.

Question-6 What are the techniques required for repairing cracks?

Answer-6 CRACK REPAIR TECHNIQUES .

1.      Sealing with epoxies { used chiefly in strong adhesives and coatings and laminates}

2.       Routing and sealing

3.      Stitching {filling material in joint’s}

4.       Injecting epoxy bonding compounds in high pressure in to

A].SEALING WITH EPOXIES  cracks PROCEDURE

1. Drill into the cracks

2. Flush out cracks by injecting water/other solvents

3. Dry the surface.

Question-7 What are the two facts of maintenance?

Answer-7 Maintenance can be of two types

a] Preventive maintenance

b]Corrective or repair maintenance.
...
It is generally needed because of the following reasons:

• Natural decay;
• Technological change;
• New demand;

Question-8  What is structure repair?

Repair is the technical aspect of rehabilitation. It refers to the modification of a structure, partly or wholly which is damaged in appearance or serviceability.

Repair and rehabilitation.

Repair is the technical aspect of rehabilitation.

 

Question-9 What is the criteria for selection of repair material?

The following factors should be considered when choosing a Repair material

Low shrinkage properties.

Good hardening / setting properties.

Good workability

 

Question-10 What are the benefits of preventive maintenance:

a]Less equipment downtime.

b]Fewer interruptions to critical operations.

c]Longer asset life.

d]Improved efficiency (assets in good repair tend to operate better)

e]Increased workplace safety and improved compliance.

Question-11 How do you repair a damaged RCC roof?

Answer-11 The RCC roof slab in-between rafter shall be plastered with 1:3 cement mortar 5 cm thick. This will ensure a long life to the roof slab. To prevent further leakage of water, a new weather proofing course shall be laid on the roof slab.

Cracks in the slab should be grouted with cement mortar.

Question 12 How chemicals can be used for repair and rehabilitation of structures?

Answer-12 Polymer is widely used for restoration of structure by way of Polymer modified concrete and for various other purposes. Polymer is mixed in water prior- to addition to the cement concrete. The concrete should be machine mixed.

Question-13 What is the best concrete crack filler?

Answer-13 For cracks up to a half-inch wide on horizontal surfaces, Quikrete Crack Seal is the easiest solution. You simply pour the latex repair liquid into the groove, where it dries to the natural color of concrete. Because it's liquid, it's self-leveling.

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