scholarly journals Effect of Admixture on Physical and Mechanical Properties of Recycled Brick Aggregate Concrete

2021 ◽  
Vol 9 ◽  
pp. 37-44
Author(s):  
Md Jahidul Islam ◽  
Md Shahjalal ◽  
Md. Mehedi Hasan ◽  
Zarin Tasnim Chowdhury
Keyword(s):  
Mechanical Characteristics ◽  
Physical And Mechanical Properties ◽  
Concrete Compressive Strength ◽  
Huge Amount ◽  
Aggregate Concrete ◽  
Air Voids ◽  
Sustainable Concrete ◽  
The World ◽  
Natural Aggregates ◽  
Day By Day

With the increasing population of the world, the rate of development of infrastructure is increasing day by day; which has placed a massive demand for natural aggregates. Besides, huge amount of demolished construction wastes are generated all over the world which creates pressure on the environment as well as landfills. Therefore, it is necessary to find a sustainable solution to adopt these C&D wastes as an alternative to natural aggregates for construction purposes. Therefore, the objective of the present study is to explore the influence of superplasticizers while adopting recycled brick aggregate (RBA) in the sustainable concrete application as a coarse aggregate. Six different mixes are considered with 100% replacement of recycled brick aggregate and three diverse water-cement (w/c) ratios, such as 0.40, 0.45, and 0.50. To improve the workability and mechanical characteristics of concrete a superplasticizer is used as an admixture. Fresh properties of concrete, compressive strength at normal and high temperatures, flexural strength and splitting tensile strength are presented. The results indicate that addion of superplasticizer improves slump values and reduces air voids of concrete. Although strengths of RBA concrete are lesser than the virgin brick aggregate concrete, they are still satisfactory in the application for structural concrete and can be also significantly improved by incorporating admixture. Finally, this research will help to recycle the brick aggregate instead of dumping it as waste in a landfill.

scholarly journals Sustainable Concrete Application in the Manufacture of University Urban Furniture

2019 ◽  
Vol 303 ◽  
pp. 05001
Author(s):  
Mónica Bedoya ◽  
Federico Rivera ◽  
María Rico ◽  
David Vélez ◽  
Andrés Urrego ◽  
...  
Keyword(s):  
Finite Elements ◽  
Mechanical Characteristics ◽  
Coal Ash ◽  
Sustainable Concrete ◽  
Waste Production ◽  
Construction And Demolition Wastes ◽  
The World ◽  
Sustainable Materials ◽  
The University ◽  
Community Diagnosis

It is clear that construction and demolition wastes (CDW) are constantly increasing throughout the world and these wastes can be used effectively to minimize the consumption of natural resources in the manufacture of more sustainable concrete. The CDW occupy an important segment of world waste production and its generation reached approximately 3 billion tons in 2012 in 40 countries [1]. Although this topic has been studied in the world, it is still valid for the reuse of waste that is constantly increasing, and although in many countries there are already examples of its use this type of concrete in Colombia and in the Medellìn city lacks applications. This project proposes the application of a sustainable concrete made with CDW and coal ash in the Medellín city for its implementation in the construction of urban furniture. A university community diagnosis of the needs in terms of furnishing was made. With the design reached, a modular chair was proposed to enable spaces within the university. The mechanical characteristics of the concrete and the design of the chair are evaluated and a simulation is done through finite elements to evaluate the viability of the proposed concrete, finding that with these properties is possible to manufacture durable and sustainable furniture that serves as an example for the application of sustainable materials

Studies on Strength and Behaviour of Hot Mix Asphalt Using Steel Slag Aggregates in Pavements

2021 ◽  
Vol 882 ◽  
pp. 254-262
Author(s):  
Sridhar Bhupathi ◽  
M.V.S.S. Sastri
Keyword(s):  
Steel Industry ◽  
Laboratory Testing ◽  
Hot Mix Asphalt ◽  
Steel Slag ◽  
Industrial Wastes ◽  
Mix Design ◽  
Waste Materials ◽  
Air Voids ◽  
The World ◽  
Natural Aggregates

Steel slag is a by-product of the steel industry. These waste materials create environmental pollution in the vicinity as they are imperishable and safe disposal of Industrial wastes is a major problem. This made engineers think about wastes that can be helpful for recycling. Based on intensive laboratory testing program, the characteristic properties of Steel Slag Aggregate (SSA) were assessed to determine its suitability to be used in Hot Mix Asphalt (HMA) and also as a potential material to be used as aggregate in flexible pavements. By utilizing this material in construction can minimize the depletion of natural resources around the world. Four different percentages (0%, 25%, 50% and 75%) of SSA were used and the proposed mix designs for HMA were conducted following the Marshall mix design. The experimental results indicate that the addition of SSA has significant improvement in the properties of HMA. An increase in density, stability and flow values and reduction in the per cent of air voids were observed in specimens prepared with above replacements. Keywords: Hot Mix Asphalt (HMA): Steel Slag Aggregate (SSA): Natural Aggregates (NA): Marshall Mix design:

scholarly journals Efficient water utilization in knit dyeing factory of Bangladesh

2020 ◽  
Vol 6 (3) ◽  
Author(s):  
Mohammad Abul Hasan Shibly ◽  
Taslima Ahmed Tamanna
Keyword(s):  
Water Consumption ◽  
Textile Industry ◽  
Lower Cost ◽  
Underground Water ◽  
Huge Amount ◽  
Dyeing Process ◽  
The World ◽  
The Cost ◽  
Textile Sector ◽  
Day By Day

Water is the vital fact for the world. Day by day water level goes down due to overuse of underground water. Huge amount of underground water used in the textile sector. It’s high time to think “how to ensure underground water proper utilization”. This article focuses on wastewater minimization options and techniques that are available for the textile industry specially knit dyeing sector. In this research, researchers established a developed process for knit dyeing then experiment was done on this process. Water consumption was calculated for both processes; conventional and developed process. Developed process consumes less water compare to existing process. Proper implementation of this developed process can save 20.85-28.75% water consumption at the knit dyeing industry. At the same time, performed the cost analysis and developed process shows lower cost than existing processes. Developed process is more efficient and profitable than existing knit dyeing process.

scholarly journals ANALISIS PENAMPANG FONDASI TIANG PANCANG PADA TEPI TANAH REKLAMASI

2021 ◽  
Vol 4 (3) ◽  
pp. 571
Author(s):  
Rendy Rendy ◽  
Aniek Prihatiningsih
Keyword(s):  
Bearing Capacity ◽  
Pile Foundation ◽  
Cohesive Soil ◽  
The Other ◽  
Land Resources ◽  
Huge Amount ◽  
Unused Land ◽  
The World ◽  
Driven Pile ◽  
Day By Day

Indonesia is a country with 4th largest population in the world. With that huge amount of population, the land capacity on the mainland is becoming more limited day by day, on the other hand, the unused land on the coast is still not utilized properly. The solution of that problem is by doing reclamation on the coast. Reclamation is an activity to increase the usability of land resources in the eye of the environmental side, social and economy by doing dropping, land drying, or drainage. Usually, the material for dropping reclamation is using cohesive soil. In this research, we will talk about driven pile foundation on reclamation land. Bearing capacity and concrete volume that would be used from every driven pile shape would be compared by paying attention from scouring effect that can decrease the bearing capacity of the pile. In this study, we will show the best driven pile shape that can be used on reclamation land.Indonesia merupakan negara dengan jumlah penduduk terbanyak ke empat di dunia. Dengan banyaknya penduduk di Indonesia mengakibatkan lahan di daratan semakin terbatas, sedangkan lahan di sekitar pinggir pantai masih banyak yang belum dimanfaatkan dengan baik. Solusi dari permasalahan keterbatasan lahan di daratan tersebut adalah dengan melakukan reklamasi pada daerah pinggir pantai. Reklamasi adalah sebuah kegiatan yang dilakukan dalam rangka meningkatkan manfaat sumber daya lahan yang ditinjau dari sudut lingkungan, sosial dan ekonomi, dengan melalui pengurugan, pengeringan lahan atau drainase. Pada umumnya material untuk pengurugan reklamasi adalah menggunakan tanah kohesif. Pada penulisan ini akan dibahas penggunaan fondasi tiang pancang pada tanah reklamasi. Daya dukung dan volume beton yang digunakan dari setiap bentuk tiang pancang tersebut akan dibandingkan dengan memperhatikan efek scouring yang dapat mengurangi daya dukung pada tiang. Sehingga hasil studi ini akan menunjukan bentuk tiang pancang manakah yang paling cocok digunakan pada tanah reklamasi.

scholarly journals Cryptography – An Overview

2021 ◽  
Vol 9 (VIII) ◽  
pp. 775-779
Author(s):  
Mahasweta Das
Keyword(s):  
Social Networking ◽  
Social Networking Sites ◽  
World Wide ◽  
Online Marketing ◽  
Huge Amount ◽  
Authentication Code ◽  
Network Protection ◽  
The World ◽  
Day By Day ◽  
General Method

With the day-by-day advancement of the Internet throughout the world, online marketing sites and applications are growing rapidly. More and more social networking sites are emerging almost every day connecting people from various parts of the world. These situations demand the organizers behind those networks to generate and store a huge amount of data regularly. Nonetheless to say, the more the data, the more is the risk of losing it. Hackers, phishers, or breachers are there at every nook and corner of the World Wide Web to steal and abuse the data of users. To protect the data from breaches, it is a necessity to secure the network. The general method of network protection is known as "Cryptography". Users are generally given a unique User ID and authentication code known as Password under which their data are stored individually. In this paper, we will discuss the overall idea of cryptography along with its methods and techniques.

1989 göçü sonrası Bulgaristan göçmenlerinin yemek kültüründeki değişim

2017 ◽  
Vol 4 (2) ◽  
pp. 227-245
Author(s):  
Cahit Kahraman ◽  
İlhan Güneş ◽  
Nanae Kahraman
Keyword(s):  
Eating Habits ◽  
Supply And Demand ◽  
Food Culture ◽  
Rapid Progress ◽  
Canned Food ◽  
Product Range ◽  
The World ◽  
Before And After ◽  
Day By Day ◽  
Made In

1989 göçü öncesi, dünyada eşzamanlı olarak gittikçe gelişen ve zenginleşen mutfak kültürü, Bulgaristan Türklerini de etkilemiştir. Pazardaki çeşitlilik arttıkça, yemek alışkanlıkları da değişime uğramıştır. Büyük göçten sadece 30-40 sene evvel kısıtlı imkânlar ile sınırlı sayıda yemek çeşidi üretilirken, alım gücünün artmasıyla yemek kültüründe de hızlı gelişmeler olmuştur. Artan ürün çeşitliliği yemeklere de yansımış, farklı lezzetler mutfaklara girmiştir. Göçmen yemekleri denilince hamur işleri, börek ve pideler akla gelir. Ayrıca, göçmenlerin çok zengin turşu, komposto ve konserve kültürüne sahip oldukları da bilinir. Bu çalışma, 1989 öncesi Bulgaristan’ın farklı bölgelerinde yaşayan Türklerin yemek alışkanlıklarına ışık tutmakla birlikte, göç sonrasında göçmen mutfak kültüründe bir değişiklik oluşup oluşmadığını konu almaktadır. Bu amaçla, 1989 yılında Türkiye’ye göç etmiş 50 kişiye 8 sorudan oluşan anket düzenlenmiştir. Bu verilerden yola çıkarak oluşan bulgular derlenmiş ve yeni tespitler yapılmıştır. Ayrıca, Türkiye’nin farklı bölgelerine yerleşen göçmenler, kendi göçmen pazarlarını kurmuşlardır. Bulgaristan’dan getirilen ürünlerin bu pazarlarda satılması böyle bir arz talebin hala devam ettiğine işaret etmektedir.ABSTRACT IN ENGLISHThe Diversity in Cuisine Culture of the Immigrants from Bulgaria After 1989 MigrationThe Cuisine culture that has been developing and getting rich day by day contemporaneously in the world before 1989 migration has also had an impact on Bulgarian Turks. By the increase in diversity in the market, eating habits have changed. While producing a limited number of food types with limited opportunities just some 30 or 40 years before the ‘Big Migration’, there has been a rapid progress in food culture by the help of the increase in purchase power. Enhancing product range has been reflected in food, and different tastes have entered the cuisines. When we say immigrant, the first things that come to our mind are pastry, flan and pitta bread. Moreover, it is also known that immigrants have a very rich cuisine culture of pickle, stewed fruit, and canned food. This study aims both to disclose the eating habits of Turks living in different regions of Bulgaria before 1989 and to determine whether there has been a difference in immigrant cuisine culture before and after the migration. For this purpose, a questionnaire consisting of 8 questions has been administered to 50 people who migrated to Turkey in 1989. The results gathered from these data have been compiled and new determinations have been made. In addition, immigrants that settled in different regions of Turkey have set their own immigrant markets. The fact that the products brought from Bulgaria are being sold in these markets shows that this kind of supply and demand still continues.

Awareness on Sustainability Perspective among Consumers’ of Tea

2019 ◽  
Vol 118 (7) ◽  
pp. 111-116
Author(s):  
Dr. M. Ayisha Millath ◽  
Dr. K. Malik Ali
Keyword(s):  
Sample Size ◽  
Positive Relationship ◽  
Health Benefits ◽  
High Price ◽  
Educational Qualification ◽  
Lack Of Information ◽  
The World ◽  
Correlation Result ◽  
Day By Day

Tea is an imperative beverage elsewhere in the world.  The need and demand for tea are increasing day by day.  Tea Association of USA expects continued growth in tea sales due to awareness on its health benefits. There are more than 3000 kinds of tea varieties are there but only four varieties are widely used. The authors investigated the opinion on sustainability perspectives and problems faced by them while they intend to buy. Willing Participants are included in survey with the sample size of 237.  The correlation result revealed that there is a positive relationship between educational qualification and sustainability perspectives of tea products among consumers. .  It is also found that lack of information and high price were the major problems faced by tea consumers while intend to buy sustainable tea. So the tea manufacturers and processors must throw light on these issues to improve its preference among consumers.

The chronicle of COVID-19: possible strategies to curb the pandemic

2020 ◽  
Vol 27 ◽  
Author(s):  
Rajesh Kumar ◽  
Seetha Harilal ◽  
Abdullah G. Al-Sehemi ◽  
Githa Elizabeth Mathew ◽  
Simone Carradori ◽  
...  
Keyword(s):  
Life Cycle ◽  
Research And Development ◽  
Vaccine Development ◽  
Therapeutic Strategies ◽  
Antiviral Drugs ◽  
Limited Data ◽  
Social Distancing ◽  
The World ◽  
Novel Virus ◽  
Day By Day

: COVID-19, an epidemic that emerged in Wuhan, has become a pandemic affecting worldwide and is in a rapidly evolving condition. Day by day, the confirmed cases and deaths are increasing many folds. SARS-CoV-2 is a novel virus; therefore, limited data are available to curb the disease. Epidemiological approaches, isolation, quarantine, social distancing, lockdown, and curfew are being employed to halt the spread of the disease. Individual and joint efforts all over the world are producing a wealth of data and information which are expected to produce therapeutic strategies against COVID-19. Current research focuses on the utilization of antiviral drugs, repurposing strategies, vaccine development as well as basic to advanced research about the organism and the infection. The review focuses on the life cycle, targets, and possible therapeutic strategies, which can lead to further research and development of COVID-19 therapy.

YOGAINTOCLASSROOM PRACTICES:NEED OF THEHOUR

2017 ◽  
Vol 4 (36) ◽  
Author(s):  
Jasmeet Bedi
Keyword(s):  
21St Century ◽  
Mental Stress ◽  
Growing Up ◽  
Educational Organization ◽  
Psychological Performance ◽  
The World ◽  
Teachers And Students ◽  
Classroom Studies ◽  
Day By Day

We are living in the world of 21st century which is known as the world of ‘Mental Stress’ in these circumstances, knowledge amplifies day by day. There is a knowledge explosion in the world, hence each and every person tries to get this knowledge by new andmost recent mediasand they also use it. In this direction there is a qualitative growing up in the person for in receipt of knowledge and its use by appreciative. In the same way, we notice the qualitative addition in the educational organization, teachers and students, which are going to get knowledge. In these circumstances teachers and students feel a perplexity. Learner or student of today is not only physically unhealthy but also mentally or emotionally. So it becomes duty or responsibility of a teacher to incorporate such practices in his classroom so that stress, tension, anxiety, frustration etc. of their students reduces which ultimately affect upon their academic as well as socio-psychological performance. The present paper throws light on benefits of yoga into classroom, studies conducted on the same, challenges before a teacher.

The Indian Yearbook of Comparative Law 2016

2018 ◽  
Keyword(s):  
Environmental Law ◽  
Comparative Law ◽  
Public Law ◽  
Corporate Law ◽  
Legal Issues ◽  
Reading Materials ◽  
The World ◽  
Almost All ◽  
The Comparative Study ◽  
Day By Day

The contributions, by eminent scholars, included in The Indian Yearbook of Comparative Law 2016 discuss the discipline of comparative law in India and is of immense importance for legal scholarship around the globe. Unlike the West, that has covered almost all aspects of law from private to public law matters of national, transnational, and international relevance, not much work has been done in the discipline of Comparative law in India. In view of the countries and people of the world coming closer day by day, the need for the comparative study of law is becoming a sine qua non for participation in almost all transactions among people living across the globe. The attempt made with this volume will not only meet the much-awaited need of having reading materials on comparative law, but will also create a forum for legal scholars around the world to express their views on different aspects of law in comparative perspective. The issues covered her range from comparative legal methods to comparison in different aspects of law in different countries, as well as transnational and international bodies such as European Union and the various bodies of the United Nations. The issues covered include corporate law, constitutional law, human rights, environmental law, globalization, democracy, privatization, and several other contemporary legal issues.

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