scholarly journals WITHDRAWN: Technical and economic feasibility of using sustainable construction methods for green buildings in Tehran

2016 ◽  
Author(s):  
Mina Nazari ◽  
Ravanshadnia Mehdi
Keyword(s):  
Green Buildings ◽  
Economic Feasibility ◽  
Sustainable Construction ◽  
Construction Methods

Indicators of Sustainable Construction in Eco Urban

2017 ◽  
Vol 42 (2) ◽  
pp. 43-48
Author(s):  
Somayeh Roshanfekr ◽  
N.M. Tawil ◽  
N.A. Goh
Keyword(s):  
Raw Materials ◽  
Research Work ◽  
Green Buildings ◽  
Building Construction ◽  
Sustainable Construction ◽  
Building Industry ◽  
Construction Process ◽  
Residential Areas ◽  
Sustainable Building ◽  
Critical Elements

This research work is an introduction to sustainable construction. A few significant indicators and many related subsets, which are crucial to green sustainable construction and also to green buildings, are mentioned in this study. An ecocity is one that utilizes all the critical elements of the environment. Urban sustainable construction is a vital criterion in this context. Sustainable construction paves the way for the building industry to progress towards achieving realistic standards of performance, particularly in view of economic, environmental, and social concerns. Sustainability is a popular expression that has given rise to various activities throughout the world once people began to grasp the implications of sustainable construction. Sustainability, which is an important factor in reducing the negative environmental effects of construction, includes improving the control and efficiency in the use of raw materials, land and power consumption. The lifetime of a building is based on some factors that are prognostic regarding the manufacture, remodelling, support, utilization, and administration of the building, and finally, the sources of utilization and waste formation, annihilation and devastation. All of these give rise to a range of ecological issues in the life of a building. Generally, a sustainable building and construction involves a reduction in the utilization of energy and also wastage from the beginning of the construction process and throughout the lifecycle of the building. Moreover, the environment is faced with mounting devastation due to the exploitation of natural resources for building construction and the replacement of agronomic regions by residential areas.

scholarly journals Exergy: Game Changer or Game Maker

2019 ◽  
Vol 111 ◽  
pp. 06024
Author(s):  
Birol Kilkis
Keyword(s):  
High Performance ◽  
Thermal Power ◽  
Green Buildings ◽  
Economic Feasibility ◽  
Second Law ◽  
First Law Of Thermodynamics ◽  
Geothermal Well ◽  
Standard Practices ◽  
Direct Use ◽  
Game Changer

Many standard practices of today in the High Performance and Sustainably Green Buildings simply rely on the First-Law of Thermodynamics and economic feasibility in their evaluation and ratings. Although these practices seem to be quite `efficient` and green, new metrics, which are based on the Second-Law, namely exergy rationality metrics show that these practices are not feasible and environmentally advantageous, unless they are redesigned accordingly. For example, a simple ORC system using low-enthalpy geothermal source is not feasible, which means that such a system may save money and apparently energy but definitely destroys exergy compared to direct use of the thermal power from the geothermal well. This poster emphasizes the urgency of switching to exergy-based designs and practices.

scholarly journals Thermal properties of fired clay bricks from waste recycling. A review of studies

Fire Research ◽  
2019 ◽  
Vol 3 (1) ◽  
Author(s):  
Ana Ramos ◽  
M. Paz Sáez ◽  
M. Ascensión Rodríguez ◽  
M. Natividad Antón ◽  
Jesús Gómez ◽  
...  
Keyword(s):  
Mechanical Characteristics ◽  
Construction Material ◽  
Clay Content ◽  
Green Buildings ◽  
Waste Recycling ◽  
Sustainable Construction ◽  
Waste Materials ◽  
Clay Bricks ◽  
Positive Effects ◽  
Mineral Waste

The large waste volumes globally generated have increased environmental awareness, promoting waste recycling as a sustainable construction material. This study presents a review of researches that analyze the thermal behavior of eco-friendly clay bricks incorporating organic and mineral waste materials as an addition. Many of these works also provide data related to the composition of the material, and its physical, micro-structural and mechanical characteristics. Most of eco-friendly clay units increase the porosity of the ceramic, improving the energy efficiency of masonry enclosures, reducing the clay content and the energy consumption during the fire process. The positive effects of lightweight ceramics are an opportunity to improve the fire resistance inside green buildings.

scholarly journals Sustainable Construction, Green Building Strategic Model

2018 ◽  
Author(s):  
Mohamed Salama ◽  
Ashraf Hana
Keyword(s):  
Geographical Location ◽  
Green Building ◽  
Green Buildings ◽  
Sustainable Construction ◽  
Theoretical Frameworks ◽  
Sustainable Building ◽  
Construction Companies ◽  
The Core ◽  
Strategic Model ◽  
Global Concern

Academic and policy literature over the past four decades (from as early as the 1970s) has been, and still is, concerned with understanding and articulating the core principles of sustainable development and sustainable construction or, in other words, sustainable building and construction, which is a holistic, multi-disciplinary approach. The increasing global concern with the maintenance and improvement of the environment, as well as the protection of the human health has become an important aspect to be considered by construction companies worldwide. The chapter falls into two parts. The main aim of the first part is to present a critical review of the established theoretical frameworks in order to understand the topic in depth, and identify the main concepts and relevant dimensions or variables that have a crucial influence on promoting and implementing sustainable construction/green buildings practices. The second part presents the findings of a research study conducted by the authors (Salama and Hanna, 2013) that sought to develop a strategic model for implementing the green building initiative in the UAE; Green Building Strategic Model, (GBSM – UAE). Despite being based on the UAE case, the underpinning theoretical framework and the stages of modelling used in building, training and validating the model makes this section a useful read for all parties interested in the area of sustainable construction in general, and green buildings in particular, regardless of their geographical location.

scholarly journals Circularity in the New Gravity—Re-Thinking Vernacular Architecture and Circularity

2021 ◽  
Vol 14 (1) ◽  
pp. 328
Author(s):  
Marwa Dabaieh ◽  
Dalya Maguid ◽  
Deena El-Mahdy
Keyword(s):  
Environmental Impacts ◽  
Circular Economy ◽  
Building Materials ◽  
Vernacular Architecture ◽  
Sustainable Construction ◽  
Design Strategies ◽  
Rapid Urbanization ◽  
Construction Methods ◽  
New Policies ◽  
Private Investors

The mounting climate change crisis and the rapid urbanization of cities have pressured many practitioners, policymakers, and even private investors to develop new policies, processes, and methods for achieving more sustainable construction methods. Buildings are considered to be among the main contributors to harmful environmental impacts, resource consumption, and waste generation. The concept of a circular economy (CE), also referred to as “circularity”, has gained a great deal of popularity in recent years. CE, in the context of the building industry, is based on the concept of sustainable construction, which calls for reducing negative environmental impacts while providing a healthier indoor environment and closing material loops. Both vernacular architecture design strategies and circular economy principles share many of the same core concepts. This paper aims at investigating circular economy principles in relation to vernacular architecture principles in the built environment. The study demonstrates how circular principles can be achieved through the use of vernacular construction techniques and using local building materials. This paper will focus on Egypt as one of the oldest civilizations in the world, with a wide vernacular heritage, exploring how circularity is rooted in old vernacular settlements and how it can inspire contemporary circular practices.

scholarly journals Techno-Economic Analysis of Green Construction Regulations Plus Survey for Prototype Implementation in Karachi

2021 ◽  
Vol 64 (2) ◽  
pp. 161-172
Author(s):  
Muhammad Imran Majid ◽  
Muhammad Ibrahim Khan
Keyword(s):  
Construction Projects ◽  
Building Materials ◽  
Green Building ◽  
Green Buildings ◽  
Indoor Environmental Quality ◽  
Major Barrier ◽  
Green Construction ◽  
Construction Methods ◽  
Local Construction ◽  
The Government

  Conventional buildings consume large amounts of energy and are the source of greenhouse gas emissions contributing to climate change. The shortage of green buildings in Pakistan have been said to be due to shortage of knowledge of the benefits of essential green building materials and the absence of  a regulatory framework. The study is qualitative and quantitative and is divided into two parts. This review paper focuses on awareness in the Pakistan's local construction market concerning green buildings through a survey questionnaire. Data collection procedure consists of 60 questionnaires related to green building construction awareness and priorities within Karachi's construction sector. Also, a focus group and personal interviews conducted with at least 5 professionals working in local construction projects are analyzed. The research questions formed from detailed literature review were analyzed and found that energy conservation, environmental/resource conservation and improving indoor environmental quality are major driving factors for green building development. Similarly, there is a lack of knowledge of green construction methods and regulations and lack of support from the government. This has been found as the major barrier in going towards green construction. We recommend policy directions towards this end and elaborate points of concern to the authorities.    

scholarly journals Cradle-to-Site Carbon Emissions Assessment of Prefabricated Rebar Cages for High-Rise Buildings in China

2018 ◽  
Vol 11 (1) ◽  
pp. 42 ◽  
Author(s):  
Boya Jiang ◽  
Hongxian Li ◽  
Ling Dong ◽  
Yu Wang ◽  
Yiqi Tao
Keyword(s):  
Co2 Emissions ◽  
Carbon Emissions ◽  
Sustainable Construction ◽  
The Sustainable Development ◽  
Reinforcing Bar ◽  
High Rise ◽  
Construction Methods ◽  
Three Stages ◽  
Material Preparation

Construction industrialization is growing rapidly and has received significant attention worldwide in recent years. The industrialization of construction results in several benefits, including the promotion of sustainable construction and the development and application of prefabrication techniques. The Prefabricated Rebar Cage (PRC) is an emerging solution applied to high-rise buildings as a replacement of the In-situ Reinforcing Bar (ISRB) construction method. This paper investigates the cradle-to-site carbon emissions of PRC, and compares the results with those of conventional in-situ rebar construction methods for high-rise buildings. The cradle-to-site cycle is divided into three stages, namely, material preparation, transportation, and on-site construction. For the material preparation stage, it is found that CO2 emissions are increased by 3% when using PRC due to the operation of machinery during the prefabrication process. In the transportation stage, CO2 emissions are found to increase by 3.3 times for PRC, as there is more transportation required for PRCs than for conventional construction methods. During the on-site construction stage, the PRC method demonstrates its advantages by reducing CO2 emissions by 44.7%, which is attributed to decreased hoisting frequency and lower mechanical utilization for fewer joining activities. Overall, CO2 emissions can be reduced by 1.24% by adopting the PRC method for high-rise buildings, and it is therefore recommended to adopt PRCs for this purpose. This research studies carbon emissions of PRC and contributes to promoting the sustainable development of prefabricated building techniques.

Sustainable Construction Technology Based on Building Modules

2014 ◽  
Vol 1041 ◽  
pp. 231-234 ◽  
Author(s):  
Mária Kozlovská ◽  
Pavol Kaleja ◽  
Zuzana Struková
Keyword(s):  
Traditional Method ◽  
Sustainable Construction ◽  
Construction Technology ◽  
Modular Construction ◽  
Construction Methods ◽  
House Construction ◽  
Traditional Construction ◽  
Family House ◽  
Bearing Structure

The aim of the paper is to demonstrate the widely presented benefits of modular construction as compared with traditional construction method. A case study of family house construction by modular building method and traditional method is used to examine the structural, economic and time indicators of individual construction methods. The results are presented in tabular and graphical outputs and are compared each other in regard to different technological parts of the building. The paper provides the comparison of economic and time indicators resulting from budgets and time schedules of construction that are executed for different variants. Such comparison demonstrates exactly the benefits of modular construction. The building based on building modules consisted of steel bearing structure and enveloped by sandwich panels is adopted as the selected modular construction technology. The different variant, applied for comparison of modular and traditional construction, is represented by the building with comparable thermo-technical characteristics, constructed by traditional masonry method.

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