Cement Added Low Lime Flyash Based Geopolymer Concrete-A New Eco-Friendly Construction Material For Future Decades

Vol. 2 No. 2

Year: 2012

Issue: Mar-May

Title: Cement Added Low Lime Flyash Based Geopolymer Concrete-A New Eco-Friendly Construction Material For Future Decades 

Author Name: Siva Konda Reddy, K. Naveen Kumar Reddy , J.Varaprasad 

Synopsis: 

It is expected that in the near future, the civil engineering community will have to produce structures in harmony with the concept of sustainable development through the use of high-performance materials with low environmental impact that are produced at a reasonable cost. Geopolymer concrete provides one route toward this objective synthesized from the materials of geological origin or by product materials such as fly ash, which are rich in silicon and aluminum. But major disadvantage of geopolymer concrete (GPC) is curing of this concrete is to be carried at elevated temperatures and this concrete is recommended for precast members because of temperature curing. This paper finds solution to overcome these problems in GPC by replacing fly ash with cement and the tests show encouraging results by which this new cement added GPC can be made as Eco-friendly construction material.

 

 

A GIS Based Study Of Water Pollutants, Characteristics And Their Affects In Hilauli Block, India

Vol. 2 No. 2

Year: 2012

Issue: Mar-May

Title: A GIS Based Study Of Water Pollutants, Characteristics And Their Affects In Hilauli Block, India 

Author Name: Rajat Agarwal, Etishree Agarwal, Dr. R.D.Garg , Prof. P.K.Garg 

Synopsis: 

Groundwater quality has a major significance, being the major alternate source of domestic, industrial and drinking water supply and therefore it needs greater attention of all concerned The present study demonstrates the spatial distribution of various chemical parameters, such as pH, F, Cl, iron, nitrate, alkalinity, TDS, total hardness etc. using GIS techniques for Hilauli block of Unnao district, Uttar Pradesh. A Water Quality Index (WQI) was calculated to find the suitability of water for drinking purpose. The overall analysis of the water quality index in the study area revealed that most of the area with > 50 value exhibited poor, very poor and unsuitable water quality.

 

 

Study of Construction of Skywalk From Bandra Suburban Railway Station (East) To Kalanagar By M.M.R.D.A -A Case Study

Vol. 2 No. 2

Year: 2012

Issue: Mar-May

Title: Study of Construction of Skywalk From Bandra Suburban Railway Station (East) To Kalanagar By M.M.R.D.A -A Case Study 

Author Name: Arjita Biswas 

Synopsis: 

Bandra is one of the major suburban stations in Mumbai. More than thousand suburban trains operation take place every day about 5 lacks commuters traveling through this station. Out of this 39% commuters approach the station by walk while 32% by bus 16% by Auto and 13% by other modes. The percentage to the station is nearly equal on the East and West. With the development of Bandra-Kurla Complex into last few years the commuters from BKC have substantial increased. Further, the Western Railway is developing the Bandra Terminal about 1 km north of the suburban station and operations from this terminal are also increasing every year above. The considering the Bandra Station Area Traffic Improvement Scheme has been included in the priority works under MUIP master plan. After considering several alternatives it is decided to develop Skywalks from Bandra (E) to Kalanagar and Bandra (W) to Hill road and Mohd. Raffi Chowk on priority. Skywalk form Bandra (E) to Kalanagar has been completed as pilot project.

 

Watershed Management: Concept, Principles and Challenges to Improving Productivity, Resources and Livelihoods

Vol. 2 No. 2

Year: 2012

Issue: Mar-May

Title: Watershed Management: Concept, Principles and Challenges to Improving Productivity, Resources and Livelihoods 

Author Name: Vishal Pandurang Kumbhar, Sushma Shekhar Kulkarni , Vidula Arun Swami 

Synopsis: 

 Watershed is not simply the hydrological unit but also socio-political-ecological entity which plays crucial role in determining food, social, and economical security and provides life support services to rural people. The criteria for selecting watershed size also depend on the objectives of the development and terrain slope. A large watershed can be managed in plain valley areas or where forest or pasture development is the main objective. In hilly areas or where intensive agriculture development is planned, the size of watershed relatively preferred is small. This paper describes the concept, principles and challenges in watershed management.

 

Advancements in Flood Risk Mapping Systems: A Brief Review

Vol. 2 No. 1

Year: 2012

Issue: Dec-Feb

Title: Advancements in Flood Risk Mapping Systems: A Brief Review 

Author Name: Anurag Aeron, Rahul D Garg , D. S. Arya , S. P. Aggarwal 

Synopsis: 

Floods have the greatest damage potential of all natural disasters worldwide and affect the largest number of people. Plans and efforts must be undertaken to move from post-disaster response to disaster mitigation. More than ever, there is the need for decision makers to adopt holistic approaches for flood disaster mitigation and management. It is recognized that comprehensive assessments of risks from natural hazards, are needed. Assessment of risk and the involvement of the community in the decision making, planning and implementation process can help to obtain sustainable solutions. Solutions must reflect the human dimension and must also consider the impacts of changing land use on flooding, erosion, and landslides. Implementation will only be sustainable if solutions are suitable for the community at risk, over the long term. Different country uses different policies and methods for minimizing vulnerabilities and adverse impacts of hazards to facilitate sustainable development. In this paper, the high risk and socio-economical loss due to flood is discussed. Various concepts and methods are presented by different researchers to mitigate the effect of floods. Remote Sensing, GIS, Google Earth and various new software and technologies are being used for flood forecasting and flood risk analysis. A brief review of few methods is presented in this paper. After a critical analysis it can be concluded that a highly integrated system is required for forecasting the floods. It should integrate geo-morphological, hydrological, meteorological, and socioeconomic aspects to provide more accurate and effective results for decision making. It requires coordination across many agencies at national to community levels for the system to work. Therefore it is clear that efficient disaster mitigation system is rigorously required to minimize the social and financial loss. In current scenario various new technologies and equipments are used to forecast and mitigate the disaster effects.

 

 

Operating Procedure For Design Of Reinfoeced Soil Wall & Analysis With Plaxis 8.2

Vol. 2 No. 1

Year: 2012

Issue: Dec-Feb

Title: Operating Procedure For Design Of Reinfoeced Soil Wall & Analysis With Plaxis 8.2 

Author Name: ANKESH SHRIVASTAVA, D. Kishan , S.S. Goliya 

Synopsis: 

In recent years, many departments of transportation are working to keep pace with population growth by considering major infrastructure improvements to their highways. The successive expansion of the highway system to meet increasing demand has made extension of the right-of-way economically prohibitive. The use of earth retaining walls has allowed highway upgrades to be constructed within existing right-of-ways, consequently lowering the additional cost of acquiring separate lands. The design of such systems, in particular for the soil MSE wall, is done using computer programs such Goldnail and Snail. These computer codes are based on limit-equilibrium methods and are typically used as design tools for conventional wall systems in which some degree of wall deflection is tolerated. Moreover, these methods do not account for the additional outward thrust expected to occur at the soil nail/MSE wall interface. As a result, the requirements for designing MSE walls systems should not only be based on stability but should also be based on wall deformation. The aim of the paper to provide guideline about designing procedure of MSE Wall & Analysis it by F.E.M. (PLAXIS) method.

 

 

Soil Improvement By The Use Of Waste Plastic Material

Vol. 2 No. 1

Year: 2012

Issue: Dec-Feb

Title: Soil Improvement By The Use Of Waste Plastic Material 

Author Name: S.K. Bukhari, Naveesh Sharma , B.A. Lone 

Synopsis: 

Most of the geotechnical projects focus on assessing the existing ground and rock conditions. On some project, the soil condition may be poor, so we may have to consider the methods for soil improvement. Presently used techniques for ground improvement are removal and replacement of weak soils; grouting the weak soil, vibrocompactions, dynamic compaction, blast densification; insitu replacement of weak soils, stabilisation using admixtures, concrete soil reinforcement and use of geosynthetics such as geotextiles, geogrids, geowebs, etc. But these methods may be either expensive or time consuming. These may also prove a hazard to the environment.  This is a serious problem experienced by the civil engineers. To overcome this problem, we introduce the use of waste plastic materials for soil improvement. These can perform five primary functions such as separation between different layers, reinforcement, fluid barriers, protection of geosynthetics, erosion control. This technique is found to be simple, cost effective and does not require any special equipment. Also, helps to save our environment, as disposal of plastics is a problem creating environmental hazard.