The Influence of Dredged of Natural Waste on Shrinkage Behavior of Self Compacting Concrete for Achieving Environmental Sustainability

2015 ◽  
Vol 650 ◽  
pp. 91-104 ◽  
Author(s):  
Nasr Eddine Bouhamou ◽  
Fouzia Mostefa ◽  
Abdelkader Mebrouki
Keyword(s):  
Environmental Sustainability ◽  
Development Policy ◽  
Mechanical Characteristics ◽  
Mechanical Performance ◽  
Self Consolidating Concrete ◽  
The Sustainable Development ◽  
Engineering Department ◽  
Hardened State ◽  
The University ◽  
The Impact

Every year, millions of cube meters are dredged from dams and restraints as an entertaining and prevention procedure all over the world. These dredged sediments are considered as natural waste leading to an environmental, ecological and even an economical problem in their processing and deposing.Nevertheless, in the context of the sustainable development policy, a way of management is opened aiming to the valorization of sediments as a building material and particularly as a new binder that can be industrially exploited and that improve the physical, chemical and mechanical characteristics of the concrete.This study is a part of the research works realized in the civil engineering department at the university of Mostaganem (Algeria), on the impact of the dredged mud of Fergoug dam on the behaviour of self-consolidating concrete in fresh and hardened state , such as the mechanical performance of SCC and its impact on the differed deformations (shrinkage). The work aims to valorize this mud in SCC and to show eventual interactions between constituents. The results obtained presents a good perspectives in order to perform SCC based in caclined mud.

scholarly journals Nanotechnology Innovations in Construction Industry and Environmental Sustainability

2019 ◽  
Vol 8 (11S) ◽  
pp. 286-291
Keyword(s):  
Construction Industry ◽  
Environmental Sustainability ◽  
Research Review ◽  
Environmental Damage ◽  
The Sustainable Development ◽  
Future Challenges ◽  
Future Potential ◽  
Living Organisms ◽  
The Impact ◽  
Near Future

Nanotechnology is a speedily increasing and innovating range of research, where advanced characteristics of resources manufactures on the nanoscale can be exploited as advantages for people at large through various methods or mechanisms of construction. Being a varied technical and scientific arena that brings and covers numerous application kinds, the contribution of nanotechnological innovations is immense for various sectors of construction industries. It also possesses a large future potential for ecological efficiency, which is dire need of the hour. In construction industry there are many factors involved to achieve the major goal of sustainability like smart design, planning through which energy can be saved, resource usage can be reduced and environmental damage can be avoided. No doubt, the application of nanotechnology materials and its various causes on the atmosphere and living organisms are not clearly defined yet which can become a problem. For instance, leakage of materials into the water resources, and seas, as well, discharge of nanoparticles into the air generating dust and exposure to harmful materials during various construction, maintenance and use etc. Considering tremendous revolution in Nanotechnological field there is an important aspect in relation to the impact of nanoparticles and nanomaterials on human health and environment which should be discussed at length. This paper intends to give a research review of current and near future, safety and eco-efficiency applications of nanotechnology to not only improve and maintain but also deal with certain future challenges and directions related to the sustainable development.

scholarly journals Developing A Sustainable Urban-Environmental Quality Evaluation System in China Based on A Hybrid Model

2019 ◽  
Vol 16 (8) ◽  
pp. 1434 ◽  
Author(s):  
Qigan Shao ◽  
Sung-Shun Weng ◽  
James J.H. Liou ◽  
Huai-Wei Lo ◽  
Hongbo Jiang
Keyword(s):  
Urban Environment ◽  
Environmental Quality ◽  
Environmental Sustainability ◽  
Evaluation System ◽  
Quality Evaluation ◽  
Pollutant Emissions ◽  
The Sustainable Development ◽  
Sustainability Policy ◽  
The Impact

In China, with the acceleration of urbanization, people pay more attention to the quality of urban environment. Air pollution, vegetation destruction, water waste and pollution, and waste sorting have restricted the sustainable development of urban environment. It is important to evaluate the impact of these environmental concerns as a prerequisite to implement an effective urban environmental sustainability policy. The aim of this paper is to establish a system for evaluating sustainable urban environmental quality in China. We extracted six dimensions and 29 criteria for assessing urban sustainable environment. Then, a fuzzy technique and the best worst method were applied to obtain the weights for the dimensions and criteria. Next, grey possibility values were applied to evaluate the sustainable environmental quality of five cities: Beijing, Shanghai, Shenzhen, Guangzhou, and Hangzhou in China. A sensitivity analysis was performed to identify how the ranking of these five cities changed when varying the weights of each criterion. The results show that pollution control, the natural environment, and water management are the three most important dimensions for urban environmental quality evaluation. We suggest that controlling pollutant emissions, strengthening food waste management, improving clean production processes, and utilizing heat energy are the effective measures to improve the urban environment and achieve sustainable urban environmental development.

Using photovoice to explore the impact on a student community after including cross-sectional content on environmental sustainability in a university subject: a case study

2020 ◽  
Vol 21 (7) ◽  
pp. 1331-1350
Author(s):  
Carmen Coronado ◽  
Carla Freijomil-Vázquez ◽  
Sara Fernández-Basanta ◽  
Elena Andina-Díaz ◽  
María-Jesús Movilla-Fernández
Keyword(s):  
Environmental Sustainability ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Cross Sectional ◽  
Content Type ◽  
Teaching Activity ◽  
Student Community ◽  
The University ◽  
The Impact

Purpose Higher education institutions have a significant impact in preparing future generations for the creation of a sustainable society. By formulating appropriate curricula, the university can shape student personality with sustainability concerns. This study aims to present the results of a teaching approach on environmental sustainability using the photovoice methodology. A guided visit to the sewage treatment plant of A Coruña was included as a teaching activity in the “Microbiology and Parasitology” classes of the podiatry degree at University of A Coruña. The teaching objectives were to reinforce contents through observation and to introduce citizen awareness on sustainability and responsible water use in a cross-sectional manner. Design/methodology/approach In this case study, different steps of photovoice as a qualitative participatory action methodology were developed. A total of 43 university students willingly participated with their photographs. Qualitative data were collected from the students’ photovoice visit reports and a subsequent discussion group. Thematic content analysis was performed manually. Findings This study explored the impact of an environmental sustainability teaching activity on the university student community. Six main categories emerged from the qualitative analysis: savings/waste of water, misuse of the water closet, disposing of used oil, solid waste/trash, reuse of clean water and reuse/reduction of the use of plastics. The cross-sectional findings on the needs of education and awareness of sustainability in the community and companies are presented. Originality/value The findings provide evidence of the ability of photovoice method as a pedagogical tool to promote reflection and change in the university community and to introduce sustainability cross-sectional content in green campus curricula. This photovoice experiment is simple and feasible to implement and has a very low economic cost, as long as there are qualified educators.

scholarly journals Volunteering to Help People with Disabilities and Less Mobile People in Transport Higher Education Institutions

2021 ◽  
Vol 19 (1) ◽  
pp. 246-258
Author(s):  
N. V. Gruver ◽  
O. M. Zemlina ◽  
R. K. Nazarova
Keyword(s):  
Higher Education ◽  
Disabled Persons ◽  
Value Orientations ◽  
Point Of View ◽  
Persons With Disabilities ◽  
The Sustainable Development ◽  
Development Goals ◽  
The University ◽  
Transport Complex ◽  
The Impact

The objective of the study was to examine the impact of organisation of volunteer movement on solving of the University tasks and on motivation of the students, particularly considering the sustainable development goals.The attention has been focused on the analysis of the mechanism and methods of implementing the capacity of volunteer movement, from the point of view of possibilities of forming socially significant qualities and value orientations in students that correspond to the needs of society and development of the transport complex, as week as the skills of legal culture and behaviour of future transport employees. A conclusion is drawn about the need to use the opportunities of volunteering as a means of self-development of the student’s personality.The study was particularly dedicated to examining the experience of the Resource Training and Methodological Centre for Training Disabled Persons and Persons with Disabilities created and operating in Russian University of Transport, main directions of increasing the efficiency of activities to create necessary conditions for accessibility of higher education for persons with disabilities in transport universities.Social survey allowed to reveal and assess the correlation of motivation and interest of participants in volunteer movement in training on the programs offered at Russian University of Transport and in participating in volunteering since most important incentives spread among the students comprise desire to help people to feel needed, as well as the desire to master new skills and acquire competences.

scholarly journals Combined Effect of Low and High Rate of Corrugated Steel Fiber and Stirrups on Mechanical Performance of SFSCC Beams

2021 ◽  
Vol 10 (1) ◽  
pp. 37-51
Author(s):  
Sihem Chaib ◽  
Rachid Lassoued
Keyword(s):  
Steel Fiber ◽  
Mechanical Performance ◽  
Steel Fibers ◽  
Combined Effect ◽  
High Rate ◽  
Self Consolidating Concrete ◽  
Concrete Mixtures ◽  
Time Flow ◽  
Hardened State ◽  
Shear Reinforcements

In order to improve the fragile nature of concrete, and its low tensile strength, and with a view to giving it the desired properties, which serve to build more durable structures at less cost, the association of a self-consolidating concrete with fiber, is considered a wise combination.  However, given the limited amount of research on the response of SFSCC structures, designers and engineers do not use this material with confidence. In the present work, an experimental companion was conducted, in the interest of examining, the combined effect of fibers and stirrups include low and high rate of steel fiber, on the behavior of SFSCC beams. This choice allowed working on economically viable SFSCC. Beams were made also with ordinary concrete and others with self-consolidating. Thirty-six beams were of identical cross-section 10x20cm and length of 120cm; carried out with or without longitudinal and transverse reinforcement. Before proceeding with the main part of the research program, the concrete mixtures were characterized first in the fresh state by the following tests: Slump Flow, Time Flow T500; J-Ring, L-Box, V-Funnel and Sieve stability, and then in the hardened state: compressive and tensile strengths. In the light of the results obtained, it was found that adding steel fibers to fresh self-consolidating concrete decreased its workability and fluidity, but improved its hardening properties. Subsequently, the addition of the steel fibers increased the flexural capacity of the beams significantly, and improved their ductility. Also, an addition of the steel fibers in an adequate percentage, in this case at 0.9%, made it possible to replace the shear reinforcements, and can lead to changing the mode of failure from a collapse by brittle shear, to a mechanism of ruin in ductile bending.

scholarly journals Multilevel Governance and Sustainable Development: the Case of Biodiversity in the Amazon Rainforest

2016 ◽  
Vol 1 (3) ◽  
Author(s):  
João Paulo Cândia Veiga ◽  
Fausto Makishi ◽  
Murilo Alves Zacareli ◽  
Thiago Augusto Hiromitsu Terada
Keyword(s):  
Sustainable Development ◽  
Local Development ◽  
Local Level ◽  
Sustainable Use ◽  
Main Hypothesis ◽  
Production Chain ◽  
The Sustainable Development ◽  
Whole Process ◽  
The University ◽  
The Impact

This article is aimed at summarizing the results of the fieldwork research conducted by a group of researchers from the University of São Paulo within local communities in the municipalities of Salvaterra, Bragança and Breves, which are located in the state of Pará in the Northern part of Brazil. The object of analysis is the production chain of oleaginous seeds obtained through the extraction activity that are used as inputs in the processing food and cosmetics industries.This article seeks to answer the following questions: what role do non-state actors play in sustainable development and biodiversity regulation at the local level?Which are the social and environmental impacts? In order to answer it, this research focuses on the impact of the extractive activity on income generation, local development and local environmental externalities caused by market incentives. The main hypothesis is that it is possible to go beyond the trade-off between welfare gains and the preservation of the environment, and thus contribute to the rational use of Common-Pool Resources (CPRs).The motivation of this article is intimately related to the Sustainable Development Goal (SDG) 15 and the sustainable use of biodiversity. It is argued that the whole process is subjected to a multilevel context in which actors and arenas interact with each other through ‘authoritative mechanisms’. Both quantitative and qualitative data have been collected through surveys conducted among local families.

scholarly journals University collaboration for co-designing sustainable urban areas

2021 ◽  
Vol 301 ◽  
pp. 03002
Author(s):  
Peter Čajka ◽  
Veronica Grebennikova ◽  
Hoang Manh Trung Vu ◽  
Van Tran Ngo
Keyword(s):  
Sustainable Development ◽  
Rural Areas ◽  
Urban Areas ◽  
Sustainable Development Goals ◽  
Labour Force ◽  
Entrepreneurial Activity ◽  
The Sustainable Development ◽  
Development Goals ◽  
The University ◽  
The Impact

Our article tackles the timely and important issue of the university collaboration aimed at shaping up the sustainable urban areas and contributing to their development through the teaching and research. Universities provided qualified labour force, yield novel research solutions and act as hubs for entrepreneurial activity in urban areas. In this article, we show that even though most of the universities are concentrated in large urban centres and capital regions, many of them are located in small rural areas and have a profound effect on them. We also demonstrate the impact of universities on the sustainable development which is done through the sustainable education as well as the R&D approaches. These effects are very relevant for the co-designing of sustainable rural areas that can follow the principles of the United Nations’ Sustainable Development Goals and the green policies imposed by the majority of the local and central governments around the world.

scholarly journals Engaging in the internationalization of education and SDGs: Case study on the global hub of UNAI on sustainability

2021 ◽  
Vol 307 ◽  
pp. 06001
Author(s):  
Rafis Abazov
Keyword(s):  
Organizational Culture ◽  
Environmental Changes ◽  
Educational Process ◽  
The Sustainable Development ◽  
Agenda 2030 ◽  
National University ◽  
Internationalization Of Education ◽  
The University ◽  
The Impact

The education sector has been identified as one of the key players in globalization processes and implementation of the UN Agenda 2030. The role of education, including higher education, involves not only raising awareness among young people and educators about the sustainable development goals (SDGs) and global environmental changes, but also in mobilizing them for partnerships towards fulfilment of these goals (as defined in SDG-17) and dealing with the challenges of globalization. The purpose of this article is to analyze the engagement of HEIs in internationalization of education, realization of the UN Agenda 2030 and supporting the implementation of SDGs, using as an example the work of the UNAI at the university level. First, the article provides a short literature review on empirical and theoretical aspects of the internationalization of HEIs, looking at how international institutions impact internationalization, organizational culture and the formulation of educational process and international cooperation activities at HEIs. Second, it analyzes organizational tools for internationalization by looking at the international experience and activities of university networks such as UNAI and the impact of those networks on the internationalization of universities. Third, it presents a case study of the work of an international university network, using the example of UNAI Hub at Al-Farabi Kazakh National University, and discusses how the UNAI programs have impacted the perception of internationalization and organizational culture at the university.

Community responses to the removal of bottled water on a university campus

2014 ◽  
Vol 15 (3) ◽  
pp. 330-342 ◽  
Author(s):  
Katja Mikhailovich ◽  
Robert Fitzgerald
Keyword(s):  
Undergraduate Students ◽  
Environmental Sustainability ◽  
Action Learning ◽  
Bottled Water ◽  
Extensive Literature ◽  
University Campus ◽  
Community Responses ◽  
Content Type ◽  
The University ◽  
The Impact

Purpose – This paper aimed to examine the impact of the removal of bottled water on the campus community. This paper presents the findings of a survey conducted at the first Australian university to remove single-use bottled water from sale on a small regional university campus. The removal of bottled water from sale at the university formed part of the university’s commitment to environmental sustainability. Design/methodology/approach – The study was conducted substantially by undergraduate students who participated in an action learning project in which they assisted in the design, implementation and analysis of an online snapshot survey made available to all staff and students of the university. Findings – The results indicated some evidence of changes to pro-environmental behaviors such as increased use of re-fillable bottles, but there were less desirable outcomes such as drinking less water. Community perceptions were dramatically polarized. Restrictions on freedom of choice, concerns about health as a result of increased use of high-sugar drinks and the continued availability of other plastic drink bottles were provided as strong objections to the removal of bottled water from sale on campus. Practical implications – The study provides useful insights for university sustainability planners and administrators about the complex range of issues associated with the implementation of sustainability initiatives on a university campus. Originality/value – While extensive literature exists about the environmental impacts of bottled water, few studies have explored the impacts or community responses to the removal of bottled water in the university context.

Linking the Impact Force History with Residual Mechanical Characteristics and NDI - A Smart Way to Perform SHM in Composites

2008 ◽  
Vol 56 ◽  
pp. 524-529 ◽  
Author(s):  
Nicolae Constantin ◽  
Viorel Anghel ◽  
Mircea Găvan ◽  
Ştefan Sorohan
Keyword(s):  
Composite Materials ◽  
Mechanical Characteristics ◽  
Structural Integrity ◽  
Mechanical Performance ◽  
Impact Force ◽  
Layered Composite ◽  
Damage Level ◽  
Clear Link ◽  
Post Impact ◽  
The Impact

Structural integrity monitoring (SHM) and evaluation of residual mechanical performance are highly needed in assessing the post-impact behaviour of composite materials and structures. The link between impact force history and the damage level was not followed enough in research studies upon the SHM of composites. The authors put in evidence a clear link in this matter in a variety of layered composite materials. The link was assessed by evaluating the residual mechanical performance and by nondestructive inspection (NDI) – ultrasonics and infrared thermography (IRT) - on the impacted samples. Such a link may prove a very useful and reliable shortcut for backing the online SHM and condition based maintenance.

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