scholarly journals Awareness and Attitude of Latvian Construction Companies Towards Sustainability and Waste Recycling

Author(s):  
Tatjana Tambovceva ◽  
◽  
Diana Bajare ◽  
Irina Shvetsova ◽  
Maria V. Tereshina ◽  
...  

Construction and Demolition Waste (CDW) creates the largest waste stream in the European Union. They consist of a heterogeneous mix of different components and constitute large amounts of waste which are often hazardous. Although some CDW is sent for recycling after the stripping and the demolishing of the building, a bigger share of the recovered CDW is restricted to low-value applications. It is widely accepted that reliable strategies and innovative technologies need to be developed to increase the share of CDW‑derived materials in new residential constructions while simultaneously minimizing future CDW. Moreover, awareness and understanding the high value of CDW derived materials should be reached to improve building energy efficiency. The aim of the research is to evaluate the level of awareness and attitude towards CDW among Latvian construction companies. It was found out that Latvian construction business community has a positive attitude to waste management activities, and understands its importance in sustainable development

2018 ◽  
Vol 172 ◽  
pp. 2978-2985 ◽  
Author(s):  
Paola Villoria Sáez ◽  
Jaime Santa Cruz Astorqui ◽  
Mercedes del Río Merino ◽  
María del Pilar Mercader Moyano ◽  
Antonio Rodríguez Sánchez

Author(s):  
Denitsa Hvarchilkova ◽  
Margarita Filipova ◽  
Ivanka Zheleva

For environment protection in the European Union (EU) it is very important the construction waste to be recycled and reused. The potential for the construction waste recycling and reuse is high, as their components have high cost. There is an opportunity for re-use of such materials in road construction, for drainage systems, for outdoor sports grounds and other construction sites. In 2012 a regulation on the management of construction waste and on the use of recycled building materials was adopted in Bulgaria, aiming to introduce a new model for the management of construction waste. This would guarantee: creation of favorable legislative and economic conditions for implementation of technologies ensuring the achievement of recycling and recovery targets but which are also financially viable in line with the country's incomes; identifying the persons responsible for covering the costs of building waste management and achieving the recycling and recovery targets; creating conditions for the production and marketing of materials from recycling of construction waste at a price that is competitive with the same new raw materials used in construction. The main effect expected from this normative document is to contribute to Bulgaria's development towards European trends, environmental protection through an integrated framework for the management of construction and demolition waste that will reduce the harmful impacts on it caused by construction waste, improving the efficiency of resource use, increasing the responsibilities of pollutants and stimulating investment in waste management.


2018 ◽  
Vol 4 (2) ◽  
pp. 48
Author(s):  
P. Villoria ◽  
M. Del Rio ◽  
J. Santa Cruz ◽  
A. Rodríguez ◽  
C. Porras

Resumen Este artículo presenta los resultados del proyecto de investigación "De residuos a recursos (W2R)" que analiza la generación de residuos de construcción y demolición (RCD) en obras de rehabilitación para la mejora de la eficiencia energética de edificios y desarrolla nuevos materiales, elementos y sistemas constructivos fabricados a partir de RCD. En este artículo se presentan algunos de los resultados del proyecto W2R, en concreto, la identificación, cuantificación y caracterización de las categorías de residuos generados en obras de rehabilitación para la mejora de la eficiencia energética llevadas a cabo en la envolvente vertical de los edificios. Para ello, se identificaron las actuaciones más comunes para mejorar la eficiencia energética de las envolventes verticales y se cuantificó la generación de RCD en dos obras utilizando métodos experimentales (datos in situ) y teóricos (software). Los resultados mostraron que la mayor cantidad de generación de RCD se produce durante las operaciones de preparación de la superficie vertical previas a desarrollar la actuación. Además, se encontró que las categorías de residuos más generados son: hormigón, cerámica, metal y madera. Abstract This article presents the results of the research project "From waste to resources (W2R)" that analyzes the generation of construction and demolition waste (RCD) in rehabilitation works for the improvement of the energy efficiency of buildings and develops new materials, elements and construction systems manufactured from RCD. This article presents some of the results of the W2R project, specifically, the identification, quantification and characterization of the categories of waste generated in rehabilitation works for the improvement of energy efficiency carried out in the vertical envelope of buildings. For this, the most common actions to improve the energy efficiency of the vertical envelopes were identified and the generation of CDR in two works was quantified using experimental methods (in situ data) and theoretical (software). The results showed that the greatest amount of RCD generation occurs during the vertical surface preparation operations prior to developing the performance. In addition, it was found that the most generated waste categories are: concrete, ceramics, metal and wood.


2021 ◽  
Vol 11 (17) ◽  
pp. 7809
Author(s):  
César Porras-Amores ◽  
Patricia Martin Garcia ◽  
Paola Villoria Sáez ◽  
Mercedes del Rio Merino ◽  
Veronica Vitielo

Buildings are responsible for 40% of the overall final energy consumption in the European Union. On the other hand, the construction, energy, and industry sectors generate around 50% of the waste produced in Europe, out of which a third part is construction and demolition waste (CDW). In recent years, many research works have been carried out to analyze the viability of incorporating waste, especially CDW, as a substitute for traditional raw materials with great environmental impact. However, most of the studies found cover only the mechanical characterization of the compound, and there are very few that analyze these materials in specific building applications. This research work evaluates the energy efficiency potential of recycled materials with CDW. After an exhaustive analysis of the main existing recycled materials, an energetic evaluation of several construction solutions is carried out, as well as a comparison with traditional solutions. The findings show that the incorporation of recycled materials in several building construction elements is a success, since it not only reduces the consumption of raw materials, but also reduces the energy consumption of the building. Energy savings using recycled materials can range from 8% in a warm region (such as Seville) up to 13% in cold regions (such as Soria), which are greater in heating than in cooling.


2020 ◽  
Vol 6 (9) ◽  
pp. 73169-73180
Author(s):  
Kelly Patrícia Torres Vieira Brasileiro ◽  
Bacus de Oliveira Nahime ◽  
Michell Macedo Alves ◽  
Pâmela Millena Kunan ◽  
Vitor Alvares ◽  
...  

2019 ◽  
Vol 11 (1) ◽  
pp. 130-155
Author(s):  
Michael Brooks ◽  
J.J. McArthur

We investigate the factors (“drivers”) that motivated investment in energy efficiency in commercial real estate office buildings over the 2006–2011 and 2012–2017 period, and looking forward from 2018 in the context of growing concern over carbon emissions around the world. These insights were collected from large Canadian asset managers through interviews conducted in 2017 and 2018. Key findings were that (1) organizations noted an increasing number of factors driving investment decisions over the three periods; (2) cost drivers (payback period and anticipated financial returns) were the top two drivers in 2006–2017; (3) public relations factors became significantly more important looking forward, with brand (reputational impact) as the top-ranked driver and tenant attraction tied for third place; and (4) mitigation against risks such as resilience and anticipated compliance consistently increased in importance. This study contributes to a comprehensive understanding of past, present, and near-future sustainable real estate investment priorities, changing owner behaviors, and the perceived business case for building energy efficiency investments.


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