S. S. Asadi ¹, C. H. Hanumantha Rao ¹, T. Lakshmi Prasad ², M. Anji Reddy ³

Affiliations
1 Dept.of Civil Engineering, School of Mechanical & Civil Sciences, KL University,Green fields,Vaddeswaram-522502,Guntur, A.P, IN
2 Dept.of Earth Sciences,yogi vamana university, Vamanapuram, kadapa, IN
3 Director Foreign Relations, Jawaharlal Nehru Technological University, Hyderabad-500072, A.P, IN

Abstract

The main objective of the study is to evaluate the physical characteristics and the natural resources in the study area and to develop methods for its efficient utilization and sustainable management using tools such as remote sensing and GIS. The thematic layers are derived from IRS-ID PAN + LISS-III merged satellite imagery and survey of India (SOI) topo maps using visual interpretation technique. These maps are converted to digital format using AutoCAD software and further integrated using Arc/Info and Arc view GIS software for the generation of final outputs. Physical characterization helps for quality of environment and natural resources development, which are optimally suitable to the terrain and to the development of water resources. The physical characterization of an area is also useful to plan the basic minimum needs of farmers, thereby improving their socio-economic conditions and helps in evolving a broad national policy which can be applied by decision makers for sustainable development of any given study area. This case study would help in developing municipalities with details at micro level for further planning.

Keywords

Remote Sensing, Geographical Information System, Sustainable Development

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Ch. Srinivasarao ¹, S. S. Asadi ¹, M. Kameswararao ²

Affiliations
1 KL University, Vaddeswaram - 522502, Andhra Pradesh, IN
2 Mallareddy College of Engineering, Hyderabad - 500043, Telangana, IN

Abstract

The present challenge in front of Civil Engineers is to find alternative materials for fine aggregates in concrete. Since, most of the State Govt. banned the dredging of river sand. The Granulated blast furnace slag is considered as a fine aggregate in concrete. At present, in India Steel Industry produces about 40 Million Tonnes by 2020 it is estimated to 60 million tonnes. The Author has investigated the effect of compressive strength of concrete, when Granulated blast furnace slag is used (GBFS) as a fine aggregate in concrete. The work includes the partially and fully replacement of river sand by granulated slag in M25 Grade of concrete with a constant 0.45 W/C ratio. Slag replacement of 50, 80, 100% are used. It has been observed that concrete made with 50% of river sand and 50% (GBFS) is nearer to Zero percent replacement. Objectives: To determine the optimum percentage slag replacement as a fine aggregate in concrete which helps in maintaining sustainability of concrete and balancing between the environmental problems due to construction industry as it is necessary to find out the alternative materials for use as fine aggregates because of restrictions by the local authorities. Methods: The experiments are planned to find out the optimum replacement percentage of GBFS against river sand as a fine aggregate in concrete. Mix design for M25 grade of concrete is made with OPC (Ordinary Portland Cement) and PPC (Port land Pozzolana Cement) is considered with a constant 0.45 W/C ratio and slag replacement of 50, 80, 100% are used. 30 Cubes for each cement category of 150 mm size are casted, cured by immersion and tested by CTM. Findings: In both the cement category, the compressive strength and slump of concrete is found reducing with the increase in the percentage of slag as a replacement to fine aggregate. In concrete made with OPC when compared with 50%, 80% and 100% replacement with GBFS reduction upto 96.50%, 87% and 77.5% in strength and 84.6%, 53.84% and 34.6% in slump respectively is observed. In concrete made with PPC when compared with 50%, 80% and 100% replacement with GBFS reduction upto 95.30%, 80% and 63% in strength and 82.7%, 51.7% and 34.0% in slump respectively is observed. Application/Improvements: This study using alternatives to fine aggregate in concrete will help in making concrete economical, reduction in environmental problems and saving the natural resources. The study may be extended to determine the concrete sustainability in saline conditions also.

Keywords

Compressive Strength, Granulated Blast Furnace Slag, OPC, PPC, River Sand.

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Sunil ¹, S. S. Asadi ¹, S. R. K. Reddy ²

Affiliations
1 KL University, Vaddeswaram - 522502, Andhra Pradesh, IN
2 Gudlavalleru Engineering College, Gudlavalleru, Krishna Dist - 521356, Andhra Pradesh, IN

Abstract

Earthquake is a spasm of ground shaking caused due to sudden release of energy in the earth’s crust and bulk of destruction takes place within a short duration of time. Past history records reveal that rate of occurrence of earthquakes is an increasing phenomena. Bitter experiences on failure/collapse of structures, particularly in urban regions, warn the people on importance of constructing earthquake resistant buildings. Local soil conditions and interaction between soil /rock media and the structure indeed affect the response of the structure during an earthquake. In the present investigation, the western region of Hyderabad, part of the capital of Telangana, is chosen as the study area which consists of different soil/rock profiles at different locations. Free vibration analysis of a multi-storeyed building is carried out when the foundation of similar structure rests on different soil/rock media. Frequencies and time periods are worked out for comparison when the same structure is assumed to be fixed at the base. From the results, it is observed that the variation in time period of the structure increases with decrease of soil stiffness. It is also noticed that soil-structure interaction effect on time period of the structure, particularly in loose soils, is of more significant compared to the variation in structure stiffness.

Keywords

Free vibration, Geomorphology, Shear wave velocity, Soil-structure-interaction, Spring constant, Time period.

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M. V. V. Prasad ¹, K. Ravi Kumar ¹, S. S. Asadi ²

Affiliations
1 Department of ECM, KL University, Vaddeswaram, Guntur - 522502, Andhra Pradesh, IN
2 Department of CE, KL University, Guntur - 522502, Andhra Pradesh, IN

Abstract

Background/Objectives: The sunlight heats up closed area which is free of air and in close contact with sun much faster and significantly. This project is used to reduce the very high temperatures present inside the vehicles to feel very comfortable. Methods/Statistical Analysis: This paper proposes a CAN based module for self-regulated inside ventilation of vehicles to reduce the high temperatures presented inside the vehicles in summer. Two microcontrollers and a group of sensors which facilitate efficient, reliable, safe ventilation and sufficient data to ensure functional are used by this project. The communication using CAN bus is established between two ARM controllers. By changing the windows of the vehicle to open position, the ventilation process is performed. The position of the windows is controlled by the controller itself and without presence of driver using an algorithm that gives the details of sensors. Findings: The movements observed near the vehicle, precipitation and others have importance besides temperature for the ventilation. The results of the tests give usefulness and the modules utilization, the windows of the vehicle is closed when the temperature inside the vehicle achieves more than comfortable temperature and if any fire accidents, thefting of vehicle occurs then the location of the vehicle is sent to the user. Application/Improvements: The system provides comfortability to the users with a low cost. It saves the fuel by reducing the usage of AC. This system can be used in home and own vehicles, cabs, and transport business.

Keywords

ARM, CAN, Sensors, Temperature, Vehicles.

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