Changing concepts in mechanical methods of cavity preparation
With advances in the field of dentistry, the G. V. Black’s concepts of extension for prevention are being replaced by the concept of minimally invasive dentistry. The present article reviews a few such techniques which help in preserving healthy tooth structure and at the same time help in efficient removal of diseased tooth structure.
Published by: Dr. Pradnya V. Bansode, Dr. M. B. Wavdhane, Dr. Seema D. Pathak, Dr. Hardik Rana, Dr. Shilpa Rai, Dr. Vaishali U. Bhalerao
Author: Dr. Pradnya V. Bansode
Paper ID: V4I6-1396
Paper Status: published
Published: December 22, 2018
Collection development in selected university libraries in Andhra Pradesh: A study
Collection development is a systematic and essential process of building library collection to fulfill the teaching, learning and research needs of its target users. It includes acquisition, selection, evaluation, and preservation of resources according to users‟ requirement. Collection development is not to build, but to develop the collection. This concept makes it explicit that there must be a planning behind it which necessitates an intellectual skill formulated in the way of ‘policies’. Collection development policies are usually formal written statements providing specific guidelines often varied from library to library. The elements of this process are selection, acquisition, relegation and discarding, and collection evaluation. It is a decision-making activity assuring continuity and consistency denoting how much emphasis is to be given upon individual steps in those elements and their relationship. This paper highlights the collection development of five selected university libraries of Rayalaseema region. This paper explains very elaborately the collection development as subject-wise, school-wise and also department-wise of the university and also given budget details. This study found that there is an urgent need to allocate more funds to university libraries to acquire more e-books and e-journals which are more essential for teaching and research purpose.
Published by: K. Harinath Reddy, I. Chandraiah
Author: K. Harinath Reddy
Paper ID: V4I6-1373
Paper Status: published
Published: December 22, 2018
Power generation in Odisha
Nowadays, as we know the importance of power. Power is like a backbone of life because without power we can’t do anything easily. Now a day’s power is everything’s. As we know, power is generated by various methods. In this, we study the various method of power generation. And we also know, how much power is generated by which power plant and what is the capacity of this plant. We also mention the data, how much has been generated in the last two years. In this, we mention the location of a power plant and which power plant is best. We also mention which power plant occur how much land and which method is the cheapest and on which power plant the atmosphere does not affect.
Published by: Neeraj Kumar Singh, Prince kumar, Dixit Suthar, Ankit kumar, Prakash Kumar, Pramod Choudhary
Author: Neeraj Kumar Singh
Paper ID: V4I6-1397
Paper Status: published
Published: December 21, 2018
A study on development of concrete using copper slag with silica fume
The present study will provide a better understanding of mechanical and durability properties of concrete in which fine aggregate is partially replaced with copper slag. In the present experimental study the various strength properties like compressive strength, a tensile strength of concrete and also durability properties like capillary suction absorption test on both ordinary concrete and copper slag Concrete, best copper slag concrete mix is carried out and compared with an ordinary concrete mix for economic and ecological study. In this study different percentage of copper, slag is used. Copper slag as a replacement of fine aggregate in concrete and replaced in the range of 0%, 10%, 20 %, 30%, 40% and 50% by weight of fine aggregate in concrete. It was found that with the increase in the amount of copper slag in concrete up to 30% with increased mechanical properties of concrete. It was also found that durability like acid resistance and capillary suction absorption test conducted for long durability show that addition of copper slag up to 30% certain limit replacement to fine aggregate with less water absorption compare with control mix and less affected with acid attack.
Published by: Vijay Kumar Dwivedi, Ram Bharosh
Author: Vijay Kumar Dwivedi
Paper ID: V4I6-1390
Paper Status: published
Published: December 21, 2018
Effect on concrete properties using recron fiber with fly ash
Extensive experimental investigation on recron fiber with fly ash reinforced concrete was carried out by researchers. Recron fiber mesh is more effective in resisting bending and punching shear. Recron Fibers are most popular metallic fibers used for the production of Recron Fiber Reinforced Concrete particularly from the point of view of strength and ductility. Experiments were conducted for both Ordinary Concrete and Recron Fibre Concrete with different percentages of Recron fibers. An experimental investigation is to study the variation in strength characteristics of concrete structural elements, for the proportion of M20 grade. In each mixes containing different percentages of fly ash is replaced by means of cement starting from 0% as normal concrete, i.e. controlled concrete 10%, 20%, and 30%, and two percentages of natural Recron fibers 0.25% and 0.5% the number of specimens cast for each case It was observed that as the addition of recent fibers to concrete mix increases, the workability of concrete mix was found to decrease as compared to control mix. At an optimum dosage of RF, the increase in compressive strength of recron fiber concrete mixes compared with control mix of concrete at 28 days compressive strength is observed from 17% to 25%. The percentage increase of split tensile strength of recron fiber concrete mixes compared with control mix at 28 days is observed from 17 to 20% for 0.25%+10 recron fibers by weight of a binder. The addition of recron fibers into the concrete mixture marginally improves the compressive strength at 28 days. It is observed from the experimental results and its analysis, that the compressive strength of concrete, splitting tensile strength, flexural strength of concrete increases with the addition of low Percentage of return fibers. The 0.25%+10 addition of recron fibres into the concrete shows a better result in mechanical properties.
Published by: Anil Yadav, Barun Yadav
Author: Anil Yadav
Paper ID: V4I6-1389
Paper Status: published
Published: December 21, 2018
Mechanical and durability characteristics of marble powder concrete
The main objective of this research is to investigate the performance of concretes contained marble dust as a cement replacement. Replacement of marble dust different percentage as 5%, 10%, 15%, 20% and 25% of marble dust as partial replacement of cement with M-25 grade of concrete age of concrete at 7, 14, 28 and 56 days. The results of the study, samples of concrete with 0 to 15% marble dust replacement have reached optimum strength. Finally Showed that concrete containing marble dust 0 to 15% showed the highest amount of compressive strength, and split tensile strength of concrete. To assess the corrosion and durability characteristics of marble dust concrete Acid and alkalinity resistance test, and Initial surface absorption test was performed. The results show that the optimum replacement of marble dust with cement was 15%. Up to 15% replacement, it is possible to gain the same strength as conventional concrete. Beyond 15% replacement the strength results following a decreasing trend. Moreover, initial surface absorption increases with an increase in replacement levels. It was also found that the Acid and alkalinity resistance is increasing with an increasing percentage of marble dust in concrete. Further studies can be carried out as this study only concludes that there is an increase in strength and durability of concrete up to 15% replacement of cement by the marble powder.
Published by: Sanoj Kumar, D. K. Jain
Author: Sanoj Kumar
Paper ID: V4I6-1388
Paper Status: published
Published: December 21, 2018
