IN THIS Visit of President ASCE 2013 Technical Fest 2013

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IN THIS

ISSUE

1

Newsletter

Issue 8, 7th October 2013

CIVIL ENGINEERING DEPARTMENT, NARULA INSTITUTE OF TECHNOLOGY, 81 NILGUNJ ROAD, AGARPARA, KOLKATA - 700109

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Visit of President ASCE 2013

Editor: Rudraprasad Bhattacharyya

Mr. Gregory E. DiLoreto, President ASCE 2013 visited Narula Institute of Technology on 16th August, 2013. Mrs. Meggan Brown, Director International Affairs, ASCE and Mr. Patrick Natale, Executive Director, ASCE were also present there.

The ASCE 2013 President delivered a small talk on

'Sustainable Infrastructure Development' to a reasonably big audience of Civil Engineering students and faculty members. He briefly explained the necessary actions to be taken up by present students to achieve sustainability in projects they would do after they join professional field. He clearly delineated the benefits and scope a student can obtain and explore through his/her ASCE student

membership. At the end of the programme, Mr. DiLoreto presented a token gift to Mr. Ayon Bagchi, the first student member of ASCE from Narula Institute of Technology. The program ended with a vote of thanks.

7HFKQLFDOFest

Publications

Technical Fest 2013

KRITANJ 2013, the annual Technical Fest of Narula Institute of Technology took place during 25th and 26th April, 2013.

"BUILD IT", the Civil Engineering Component was very popular in its first installment.

A total of 40 participants took part in inter-college Bridge Making Competition- “Bridge It”. Apart from this, there were around 20 participants in "On the Street", the transportation planning competition.

Shreela Chowdhury and Team won the 1st position in

"Bridge It". 5

Visit of President ASCE 2013

Teachers' Day Celebration Seminar

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Utilization of Industrial Waste

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Achievements and News

A few students of Civil Engineering Department contributed in

NAVODAYA 2013, the Cultural Fest of Narula Institute of Technology during 25th and 26th April, 2013.

•Sourav Das (2009-2013): Convener

•Anindya Chowdhury (2010-2014):

Head Coordinator of Prize Distribution and Certification

•Subhabrata Ghosh (2010-2014):

Coordinator of Security Management

A seminar on "Construction Planning and Management in Building and Transportation Sector" was organized on 28th September, 2013 at Narula Institute of Technology.

The guest speakers were Prof. Tapas Kumar Roy, Assistant Prof. BESU and Mr. Saliendra Bhattacharya, General Manager, Shapoorji Pallonji & Co. Ltd.

Prof. Tapas Kumar Roy elaborately discussed regarding construction procedure of N. H. Roads, District roads, village roads construction from subgrade to carriage surface including use of road

materials, compaction procedure, testing of road material and quality control during road construction.

Mr. Saliendra Bhattacharya pointed out the common mistakes in construction work at the beginning of work and which are coming in great shape of danger in future.

Seminar

Teachers' Day Celebration 2013

Publications

1. Rudraprasad Bhattacharyya, “Spring damage model for a two phase random material

microstructure”, Engineering Mechanics Institute 2013 Conference, Northwestern University (USA), August 2013.

2. Rudraprasad Bhattacharyya and Chandrasekhar Sen Majumdar “ Energy Minimization Through Increased Natural Ventilation in a Two-storied Residential Building”, National Conference on Energy Engineering, Analysis, Audit and Management (IEEE conference), Narula Institute of Technology, Kolkata (India), July 2013.

3. Chandrasekhar Sen Majumdar and Rudraprasad Bhattacharyya “Reduction of Energy Consumption in a Two storied residential Building Through Utilization of Daylight”, National Conference on Energy Engineering, Analysis, Audit and Management (IEEE conference), Narula Institute of Technology, Kolkata (India), July 2013.

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Newsletter, Issue 8, 7th October 2013

Teachers' Day was celebrated by the civil engineering students on 5th September, 2013 with great zeal. Following this a cultural programme is organized on 14th September, 2013 by all the students of Narula Institute of Technology to paid homage

to the hard

work put in

by their

faculty

members

throughout

the year

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3 Utilization of Industrial Waste in Construction

Waste from industry are one of the vital reasons for environmental degradation. If we can utilize the wastes from industries we could achieve reduction in pollution. One of the approach is to produce construction material which is more durable to aggressive pollutant gases and acid rain. Thus we can save thousands tons of Portland cements. Currently wastes are used to replace a proportion of cement while making concrete.

We will able to gain following advantages.

• economy

• improvement in workability of concrete with reduced bleeding and segregation

• resistant to freezing and thawing

• water repellent FLY ASH

Fly Ash is a residue derived from the combustion of pulverized coal in furnaces of thermal power plant. It is finer than Portland cement with specific surface varies up to 5000 cm2/gm. Its colour varies from light grey to dark grey. It consists of spherical glossy particle ranging from 1μm to 150μm, most of which are passes from 45μm sieve.

Fly ash is supplied in two grade - Grade I and Grade II. However, only Grade I is recommended for manufacture of Portland pozzolana cement.

Significant changes can be observed in the following parameters if Fly Ash is used - Amount of Mixing Water, Compressive Strength, Modulus of Elasticity, Curing Condition, Shrinkage and Permeability, resistance to Chemical Attack, Heat of Hydration, Air Entrainment, and Setting Time.

SILICA FUME

Silica fume is an industrial by-product mainly from ferro-silicon producing companies. It is produced during the reduction of high purity quartz with coal or coke and wood chips in an electrical arc furnace during the reduction of silicon metal or ferro silicon alloy.

Silica fume is a very fine amorphous material and is used in concrete as a mineral admixture. However, it is relatively new as a mineral admixture compared to natural pozzolan, fly ash and blast furnace slag. Silica fume exhibits pozzolanic reactivity.

Silica fume comes in three forms: Powder, Condensed, and Slurry. Silica fume is a very promising mineral admixture particularly for producing high-strength to ultrahigh strength concrete.

PALM OIL SHELLS

Palm oil shells are zero-value Agricultural waste product. They are

produced in large quantities by the oil mills and can be used as aggregates in the production of lightweight concrete.

About 1.1 tons of shells or 5.5% of the weight of the fresh fruit bunch is produced annually from each hectare cultivated. Palm oil shells have a bulk density of 620 kg/m³ and a specific gravity of 1.25. The 28 day cube Compressive Strengths of the lightweight concrete made using Palm oil shells usually varies between 5.0 to 19.5 N/mm2.

The main applications are production of structural concrete, load bearing and non-load bearing concrete blocks as well as for insulating purposes. It can also be used in precast wall panels and roof units.

Fly Ash Bricks

Sillica Fume

Plam Oil Shells by Anindya Chowdhury (2010-2014 Batch)

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4 RICE HUSKS

Rice husks are the by-products of rice paddy milling industries. The current world production of rice paddy is around 500 million tons and hence 100 million tons of rice husks are produced.

The rice husk has a large dry volume due to its low bulk density

(90-150 kg/m³) and possesses rouge and abrasive surfaces that are highly resistant to natural degradation.

Disposal has become a challenging problem. It is recognized that only the cement and concrete industries can consume such large quantities of solid pozzolanic wastes.

The chemical composition of rice husk is similar to that of many common organic fibres. It contains: cellulose, a polymer of glucose; lignin, a polymer of phenol; hemi cellulose, a polymer of xylose; SiO2 the primary component of ash.

Workability of Fresh Concrete, Modules of Elasticity, Creep and Shrinkage of Concrete, reduction in the Permeability of Concrete, increased resistance to Thermal Cracking and Alkali-Aggregate reactions are the parameters that can be modified with the use of Rice Husk.

RED MUD

Red mud is a residue obtained by the Bayer process during the manufacture of alumina.

Red mud can be used in the following ways -

• production of bricks

• raw cement mix additives

• as a pozzolanic material

• pigments for concrete

• addition to concretes

• lightweight elements

BLAST FURNACE SLAG

Blast furnace slag is a waste obtained from metallurgical industry. The main constituents of blast furnace slag are the following oxides- Calcium oxide (CaO), Silicon di oxide (SiO2), Magnesium oxide (MgO), Alumina (Al2O3).

These oxides are constituents of the majority of cementitious material.

The major advantages of using blast furnace slag in cement are

• reduced heat of hydration

• refinement of pore structure

• reduced permeability

• increased resistant to chemical attack

Rice Husk

Disposed Red Mud

CONCLUSION

Wastes are used in construction industry not only for cost reduction purposes but also for the current need of sustainable development. We have to recycle and reuse the waste material for a clean and healthy environment.

There are a very promising future aspects of waste material as building materials.