Home

Vastu Tips

Interior Design Services

 
Building Repair Process      Waterproofing Types & Methods       Image Gallery      Terms & Condition      Contact Us

 

What's the Right Time To Go For Building Repair & Paint Services ???

/.

Most of the people gets confused about building repair services, and they really don't know what's the right time to go for building repair services (Building structural repair & Painting Services), so here are few symptoms that shows when to take up the building repair services (building structural repair & Painting Services) for your Sky-crappers, Housing Societies, Bungalows, Etc..

Below we have listed several points that will really help you all to identify the right time to conduct building repair & paint work services.

1. Why do buildings show cracks after a few years?

Building show cracks because of two main reasons and hence there are two types of Cracks:

* Multi storied buildings are more of dynamic structures rather than static. They go through the normal phenomenon of settlement, deflections, vibrations and movement because of the movements of loads and wind. With time this dynamism causes some stresses, which show up in the form of cracks in the walls ceiling etc. This type of cracks are only plaster deep. These cracks are treated by, chasing them out into V shaped groves and filling them up with good quality crack filler.

* In the reinforced concrete, water/moisture reaches the steel by leakage or because of the porosity of concrete. This water in the presence of carbon dioxide oxidizes the steel and causes rusting or corrosion. The volume of corroded steel puts lot of pressure on the neighboring concrete and the concrete develops cracks. The cracks due to corrosion appear on the columns and beams. These cracks are larger and generally associated with brown colored stains.

2. Are cracks dangerous and how to treat them?

Surface cracks in the plaster, and those, at the junction of the soffit of the beam and the top of brick work in a wall or those, at the junction of column and the brick work, are only plaster cracks and can be treated by the use of crack fillers

Cracks due to corrosion which are seen on the column and beams, need to be inspected by taking out the concrete to expose the reinforcement. If the reinforcing steel is corroded more than 50 % of its original volume, then it will have to be treated by replacing the lost steel and corrosion inhibition treatment done to entire steel. Then re-concreting is done, by jacketing method, using Super Fluid Micro Concretes, after removing the old concrete. If the damage to steel is less than 50 % of its original volume then the lost steel is substituted with new steel to make up the lost volume of steel, corrosion inhibition treatment is done and the broken concrete is made good by polymer modified mortar.

3. How to identify that the building has a structural problem?


Cracks in the columns and beams, cracks associated brown stains and large chunks of concrete falling off from the RCC members and cracks being very big are all signs of corrosion to indicate that the building has structural problems. Physical examination of the steel by a competent structural repair Consultant, after removal of the cover concrete establishes the degree of the problem.

4. How do we know whether reinforcement is corroded?


Brown marks associated with the cracks indicate corrosion. Bigger cracks on the beams and columns also indicate corrosion. A physical inspection after removing the cover concrete will show the corrosion if it is there. Corroded reinforcements can be separated, by picking from the fingers, as they are very weak.

5. What causes corrosion of reinforcement?


Corrosion is caused by the oxidation of steel. Reinforcing steel when comes in contact with atmospheric carbon dioxide in the presence of moisture the corrosion process starts and spreads fast like a cancer. Ground water containing chlorides sulphates etc, rising in the capillaries of the concrete when comes in contact with the reinforcing steel the reaction between the two oxidizes the steel and the corrosion process starts.

6. Do leakages cause corrosion?


Yes leakages are the main cause of corrosion of steel. Hence a good waterproofing treatment always ensures a protective atmosphere around the steel for a long time and contributes to the longevity of the structure.

7. Is it safe to stay in buildings that have corrosion problems?


Since the process of corrosion progresses very fast and could cause the collapse of the structure it is advisable that the repairs are carried out faster. If the sound steel is reduced to less half its original volume, then it is not safe to stay in such buildings. It could be a great risk to life and valuables stored in such buildings.

8. When to take up repairs?


Repairs need to be taken up immediately after the first signs of the corrosion to steel are detected so that the minimum damage can be repaired economically. Any season is suitable for repairs except the rainy season.

During the rainy season difficulty will be faced by the workers on the scaffoldings to reach the area of repair and hence inefficiency. Rains cause delays and non continuity of works with the possibility of the repairs being washed away or becoming weak with the contamination of rain water. During summer holidays many tenants have a tendency to go out on holidays giving fair accessibility to the workers and less botheration to the tenants.

 

Copyright 2015 R.K.Interiors. The content is copyrighted to Manoj Sharma and may not be reproduced on other websites