Problems of using High Grade Steel in Constructions

Presented by:
1) Prof.M.V.Kuriakose B.Tech(Ed), M.I.E. (Retd.Principal, Govt.Polytechnic, Perinthalmanna)
2) Mr.Jismon Issac B.E (Mech) A.I.E, MBA

[Prof.M.V .Kuriakose is having around 35 years of expertise in Structural Engineering and Designing. He is an active member of Lensfed.]

[Mr.Jismon Issac has 13 years of experience in the manufacturing & Quality testing of Construction Steel bars especially High grade TMT steel bars]

Now days some contractors report a tendency among few design Engineers that they specify grade Fe-500 or higher steel in residential buildings, citing its high strength. If they design buildings considering the use of Fe 500 steel in construction, it could help reduce the volume of steel used and reduce the column size.

The rosy part aside, Fe 500 grade steel could pose quite a few site specific issues during construction, especially for small builders. Considering the reported failures and problems with grade Fe-500 or higher, it is advisable to use Fe 415 in residential and commercial buildings and Fe500 could be used only when the entire design is made according to that grade. This is explained below;

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Green Buildings In India

By
R. LOGA RAJA, K.SURESH KANNAN
NPR College of Engineering and Technology,
B.E. Civil Final Year,
Natham, Dindigul (DT)

Abstract
A green building, which is also known as a sustainable building is designed to meet some objectives such as occupant health; using energy, water, and other resources more efficiently; and reducing the overall impact to the environment. It is an opportunity to use the resources efficiently while creating healthier buildings that improve human health, build a better environment, and provide cost savings. All the development projects lead to over-consumption of natural resources.

Keywords: sustainable building, human health, natural resource, energy, etc.
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Groundwater Recharge by Waste Water

By
Prof. Asif P.Shaikh, Prof. Avinash V. Navale , Prof. Balasaheb E.Gite, Prof. Madhuri K. Rathi
Amrutvahini College of Engineering, Sangamner
University of Pune

Abstract :
Water that seeps into an aquifer is known as recharge. Recharge comes from a variety of sources, including seepage from rain and snow melt, streams, and groundwater flow from other areas. Recharge occurs where permeable soil allows water to seep into the ground. Areas in which this occurs are called recharge areas. They may be small or quite large. A small recharge area may supply all the water to a large aquifer. Streams that recharge groundwater are called losing streams because they lose water to the surrounding soil or rock.
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An Idea Of Connecting Solar Panels With The Tower Of A Wind Turbine Where The Blades Of The Turbine And The Solar Panels Are Both Made From Singled-walled Carbon Nanotubes

By
SHREYA GANGULY
CAMELLIA SCHOOL OF ENGINEERING AND TECHNOLOGY

Abstract
It is known to all that both solar and wind power are beneficial in building up a sustainable lifestyle. Wind turbines are specifically designed to convert wind energy into electrical energy; A solar panel is a set of solar photovoltaic modules electrically connected and mounted on a supporting structure. A photovoltaic module is a packaged, connected assembly of solar cells. The solar module can be used as a component of a larger photovoltaic system to generate and supply electricity in commercial and residential application. The idea is to connect solar panels (made from carbon nanotubes) to the tower of a wind turbine. In order to get maximum exposure to the sun, the height of the wind turbine has to be increased. Therefore, the wind blades are made of carbon nanotubes which are lightweight material providing good strengths.
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Mechanical Properties Of Recycled Aggregates Concrete

Submitted by :BILAL RIAZ CHUGHTAI.
Group members:BILAL RIAZ CHUGHTAI, MUDASSAR MEHMOOD GHUMMAN, MUHAMMAD SOHAIL SALEH and AOON MUHAMMAD HANIF.
Supervised by: Dr. ATTAULLAH SHAH.

INTRODUCTION
1.1 GENERAL
In the world of construction, concrete like other materials is playing an important role in development. concrete is a composite material which is a mixture of cement, fine aggregate , coarse aggregate and water .The major constituents of which is natural aggregate such as gravel, sand, Alternatively, artificial aggregates such manufactured sand furnace slag, fly ash, expanded clay, broken bricks and steel may be used where appropriate. It possesses many advantages including low cost, general availability of raw material, adaptability, low energy requirement and utilization under different environmental conditions.

The goal of sustainable construction is to reduce the environmental impact of a constructed facility over its lifetime. Concrete is the main material used in construction in the world. Due to increase in Construction and Demolition activities worldwide, the waste concrete after the destruction of any infrastructure is not used for any purpose which is totally loss in the economy of the country because natural resource are depleting day by day. The debris is also a major problem for municipal authorities to dispose of at particular location. It is most common practice in all over the world that most of the materials (paper, plastic, rubber, wood, concrete, etc) are being recycled to save the natural resources and environment. Concrete is such a costly material but Now a day’s waste concrete is only being used as a landfill material instead of recycling the concrete as a recycled concrete aggregate (RCA) to use for the construction purposes.

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