Civil Engineering Information

By
Sourav Dutta
Manager-Civil

Introduction
There are a number of ways in which the superstructure can be built. In areas where average to good quality bricks are available, the walls of houses for two to three storeyed constructions can be built out of bricks with the slabs, lintels, chajja etc. in reinforced concrete. Such construction is termed as load bearing construction (Fig 1). This is essentially because the entire load coming from the slabs, beams, walls etc is transmitted to the foundation through the brick walls.

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By
Sourav Dutta
Manager-Civil
Ion Exchange India Limited

Conventional way of rebar lapping / splicing as per BIS

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By
Sourav Dutta
Manager-Civil
Ion Exchange India Limited

Now-a-days for controlling rust/corrosion of rebar some extra treatment is being carried out on rebar, making it more resistant to rusting/corrosion under unfavorable circumstances. Some of these treated rebars normally used are: (1) Fusion bonded epoxy coated rebar, (2) Cement-polymer composite coated rebar,(3) Corrosion resistant steel (CRS) rebar. The following comparison is being made aiming to give a clear cut idea on advantages/disadvantages of each type, which might help and give an idea to construction industry for decision making of selection of any particular type.

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By
Sourav Dutta
Manager-Civil
Ion Exchange India Limited

Construction industry at present is facing a major hike in material price, especially cement, sand and stone chips. The following document is prepared to highlight the reduction in concrete manufacturing cost upon using Fly Ash (BIS3812). The method of mix design has been done in reference with BIS10262-2009. Hope that any contractor over India will benefit from the given working and follow the suggested method to reduce their construction cost.

This will have the following advantages: (1) Reduction in use of construction materials which are facing scarcity now-a-days, (2) Reduction of construction cost for contractor, (3) Use of fly ash in a effective manner, which are generated as waste product from thermal power plants and various industrial plants, (4) Assisting in scientific disposal of waste product from thermal power plants and various industrial plants.

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India has been plagued by some catastrophic earthquake tremors in past that have caused loss of property and human beings:

However, during the earthquake in New Zealand on 3^rd September 2010 (magnitude on Richter’s scale: 7.0), only 2 people were injuredwhich was caused by falling masonry and glass. Interestingly, the said earthquake had struck when most people were asleep. Therefore it is clear that “EARTHQUAKES DON’T KILL PEOPLE, BUILDINGS DO!”
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INTRODUCTION
It was observed from our many of the project sites that the flooring tiles used in toilets are of joint free type. It was reported by from the handed over flats of deferent projects that toilet floor has the major problem of leakage.

While going through the issue it was found that the joint free tiles that we are using in the floor are the reason for the leakage. Since the joint between the tiles are too small, it difficult to seal the joint completely, this leads to the penetration of water through the joint and resulting in leakage. Also these joints does not account for the expansion and contraction due to temperature by tiles, it will result in the failure of tiles.

Hence as a corrective action for this issue we suggest for the usage of the Tile spacers during the tile lying in toilet floors.

Why use tile spacers?

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By
Mr.Sourav Dutta
Manager (Civil)
Tata Steel Ltd

Rusting/Corrosion are mainly caused due to:
1. Prolonged exposure of rebar to atmosphere/rainfall without any precaution.
2. Aggressive/saline/toxic environment.

RUST is caused by the reaction of air (O2) and moisture (H2O), and it is a common and natural phenomenon for most steel products. IT SHALL NEVER BE CAUSE OF CONCERN/REJECTION OF REBAR, AS PER BIS.

Fig : Guideline of BIS1786-2008

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By
Sreenivasa Hassan Jayaram
Manager-Projects, Jones Lang LaSalle India, Bangalore, Karnataka

Introduction:There are too many line items in life which you cannot calculate. Gravity is one among them. When you lose your balance and fall that’s called as Gravity at work. Many people life at risk got injured or died due to fall from height during the job. Fall from height results in serious injury than any other accidents in the industry. People suffer from broken bones, spinal injuries, paralysis and few more after the fall from height.

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BY
Sreenivasa Hassan Jayaram
Manager-Projects, Jones Lang LaSalle India, Bangalore, Karnataka

Introduction – Ladders are a great resource to help workers access materials or work areas that are out of reach. Additionally, ladder accidents are one of the leading causes of occupational injuries and fatalities.
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By
Sreenivasa Hassan Jayaram
Manager-Projects, Jones Lang LaSalle India, Bangalore, Karnataka

Introduction:Fall protection is the standby system provided for aemployee who could lose his or her equilibrium at height, in order to control or eradicatedamage potential. The fall protection is required to restraint or arrest the fall from heights. The person falling from height may lose balance or grip or may slip, or may trip or may misstep at any point of time. Fallen from height or elevated place results in serious injuries and it could be the most serious injury than any other accident in the industries.
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