scholarly journals Assessing the long term effects on climate change of metallurgical slags valorization as construction material: a comparison between static and dynamic global warming impacts

2021 ◽  
Vol 1 (1) ◽  
pp. 88-111
Author(s):  
Andrea Di Maria ◽  
◽  
Annie Levasseur ◽  
Karel Van Acker ◽  
◽  
...  

<abstract> <p>The interest in circular economy for the construction sector is constantly increasing, and Global Warming Potential (GWP) is often used to assess the carbon footprint of buildings and building materials. However, GWP presents some methodological challenges when assessing the environmental impacts of construction materials. Due to the long life of construction materials, GWP calculation should take into consideration also time-related aspects. However, in the current GWP, any temporal information is lost, making traditional static GWP better suited for retrospective assessment rather than forecasting purposes. Building on this need, this study uses a time-dependent GWP to assess the carbon footprint of two newly developed construction materials, produced through the recycling of industrial residues (stainless steel slag and industrial goethite). The results for both materials are further compared with the results of traditional ordinary Portland cement (OPC) based concrete, presenting similar characteristics. The results of the dynamic GWP (D_GWP) are also compared to the results of traditional static GWP (S_GWP), to see how the methodological development of D_GWP may influence the final environmental evaluation for construction materials. The results show the criticality of the recycling processes, especially in the case of goethite valorization. The analysis shows also that, although the D_GWP did not result in a shift in the ranking between the three materials compared with S_GWP, it provides a clearer picture of emission flows and their effect on climate change over time.</p> </abstract>

2019 ◽  
Vol 964 ◽  
pp. 115-123
Author(s):  
Sigit Tri Wicaksono ◽  
Hosta Ardhyananta ◽  
Amaliya Rasyida ◽  
Feisha Fadila Rifki

Plastic waste is majority an organic material that cannot easily decomposed by bacteria, so it needs to be recycled. One of the utilization of plastic waste recycling is become a mixture in the manufacture of building materials such as concrete, paving block, tiles, roof. This experiment purpose to find out the effect of addition of variation of LDPE and PP thermoplastic binder to physical and mechanical properties of LDPE/PP/Sand composite for construction material application. In this experiment are using many tests, such are SEM, FTIR, compression strength, density, water absorbability, and hardness. the result after the test are the best composition of composite PP/LDPE/sand is 70/0/30 because its have compression strength 14,2 MPa, while density value was 1.30 g/cm3, for the water absorbability is 0.073%, and for the highest hardness is 62.3 hardness of shore D. From the results obtained, composite material can be classified into construction materials for mortar application S type with average compression strength is 12.4 MPa.


2021 ◽  
Vol 250 ◽  
pp. 01005
Author(s):  
Manuela Tvaronavičienė

Adaptation strategies to the climate change include measures that can be taken to take account of the new climatic conditions. This paper aims at assessing the effects of climate change on environmental sustainability. This sustainability constitutes a major problem in many countries and regions around the world that experience industrial pollution, degradation of land as well as natural disasters caused by the global warming. The paper shows that adaptation strategies are often parallel strategies that can be integrated simultaneously with the management of natural resources. They can make resources more efficient and resilient to climate change. The paper shows that reducing the carbon footprint by more than 50 percent by 2030 and eliminating it by 2050 might be a viable solution how to tackle the climate change and support the environmental sustainability.


2019 ◽  
Vol 1 (3) ◽  
Author(s):  
Grace Kurniawati ◽  
Lisa Oksri Nelfia ◽  
Ade Okvianti Irlan ◽  
Indrawati Sumeru

Construction is growing rapidly nowadays. Buildings, housing, industry/business centers and highways will require natural aggregates which are natural resources that cannot be renewed. Therefore, we need replacement materials able to replace these natural aggregate. The large amount of plastic waste in fields, based on existing data, causes environmental pollution through it can be reused and useful for building and road construction. Most of communities don’t even know the plastic waste processing technology that allow their use in the construction of house construction such as floors, walls, roofs, and hinges and also road construction with not heavy road loads. The purpose of this activity is to provide the knowledge to the people of RPTRA related to technology for the use of plastic waste for building materials and also road construction in the area in the RPTRA environment considering it is not a public road and hence, with not heavy vehicle. The method used is firstly observation and interview of several houses visited. Then activities about using different types of plastic waste as construction materials. Finally, evaluation of the progress of the project by conducting a survey to people who had met the criteria of being a member of the plastic waste program. The success of this program will be the people’s understanding and a significate growing of any highvalue plastic use as construction material. The benefit of this community service is to increase the knowledge and insight of the people of RPTRA, South Meruya, and West Jakarta City, related to environmentally friendly technologies such as plastic waste processing.


2018 ◽  
Vol 878 ◽  
pp. 140-145
Author(s):  
Ying Ding ◽  
Hong Zhang

Dayu island sea cottage is the most typical carrier of the fish culture in the coastal area of Jiaodong. In recent years, economic development, changes in fishermen's living habits led to a the dismantling of a large number of traditional sea cottages and gradual disappearing of unique Dayu island building materials system comprising of eelgrass roof, local granite stone wall and soil kang chimney. In order to protect the local cultural characteristics so they can be passed down, the paper sorted out the original traditional eelgrass cottage building material system. The project of Century Fishing Village Eelgrass Cottage Resort represents experimentation and innovation on the original material system, forming a novel construction material system. Such a system not only satisfies the requirement of new buildings on thermal insulation, energy and space conservation, but also enhances safety and resistance to wind, erosion. The wide adoption of the new material system in new buildings enhances the technique of integrating traditional construction materials and modern architecture in both form and function, making it an ideal design strategy.


2014 ◽  
Vol 522-524 ◽  
pp. 806-810 ◽  
Author(s):  
Jae Woo Park ◽  
Gi Wook Cha ◽  
Won Hwa Hong ◽  
Hyun Cheol Seo

Recently, BIM (Building Information Modeling) became mandatory in Korea, and BIM started to be implemented in construction area. It is a design tool for maximizing the efficiency of design, construction, and maintenance throughout the entire lifecycle, but there are not many studies about the demolition wastes (DW) in the demolition stage. This study gathered basic data concerning the development of a database of DW disposed in the demolition stage using BIM-based building material database. For this, a BIM software, ARCHICAD, and construction material categories of the item list system of the PPS (Public Procurement Service) were analyzed to select major building materials. Based on the analysis, the disposal routes were analyzed considering the characteristics of DW. The database of DW was developed by examining the disposal routes of 52 major construction materials selected according to the characteristics of each material during demolition and selecting 7 major DW.


2018 ◽  
Vol 10 (12) ◽  
pp. 4688
Author(s):  
Marina Nikolić Topalović ◽  
Milenko Stanković ◽  
Goran Ćirović ◽  
Dragan Pamučar

Research was conducted to indicate the impact of the increased flow of thermal insulation materials on the environment due to the implementation of the new regulations on energy efficiency of buildings. The regulations on energy efficiency of buildings in Serbia came into force on 30 September 2012 for all new buildings as well as for buildings in the process of rehabilitation and reconstruction. For that purpose, the carbon footprint was analyzed in three scenarios (BS, S1 and S2) for which the quantities of construction materials and processes were calculated. The life cycle analysis (LCA), which is the basis for analyzing the carbon life cycle (LCACO2), was used in this study. Carbon Calculator was used for measuring carbon footprint, and URSA program to calculate the operational energy. This study was done in two phases. In Phase 1, the embodied carbon was measured to evaluate short-term effects of the implementation of the new regulations. Phase 2 included the first 10 years of building exploitation to evaluate the long-term effects of the new regulations. The analysis was done for the period of 10 years, further adjustments to the regulations regarding energy efficiency of the buildings in Serbia are expected in accordance with EU directives. The study shows that, in the short-run, Scenario BS has the lowest embodied carbon. In the long-run, after 3.66 years, Scenario S2 becomes a better option regarding the impact on the environment. The study reveals the necessity to include embodied carbon together with the whole life carbon to estimation the impact of a building on the environment.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Rezuana Islam ◽  
Sajal Chowdhury ◽  
Nusrat Jannat ◽  
Pranjib Paul

PurposeLocal dwellings of Bangladesh have specific environmental characteristics. These dwellings extensively use locally available materials and construction techniques. Therefore, carbon footprint (CF), as a prominent environmental parameter, is greatly affected by construction materials and techniques. Nonetheless, scientific justification is limited to evaluate CF of these dwellings in Bangladesh according to different local construction materials. The main purpose of this study is to evaluate different rural dwellings’ CF for both construction and operational phases toward the development of low carbon society in Bangladesh.Design/methodology/approachFor evaluating CF, literature review and field studies were conducted to specify and categorize cases. An intensive field monitoring and occupant's survey were performed during summer. A widely recognized compliant database and assessment tool “Ecoinvent v3” was used based on International Organization for Standardization (ISO) 14040 and 14044. Quantitative and qualitative data were collected to evaluate constructional and operational stages of carbon emission using hybrid methods formed by process-based and economic input–output life cycle analysis (EIO-LCA) approaches.FindingsThe study indicates that different building materials significantly impact on dwelling's amount of carbon emission according to construction techniques. Brick dwelling's construction stage carbon emission was nearly 3.86 times higher than timber, whereas, 6.75 times higher than mud dwelling. In terms of operational stage, local brick dwelling emits higher carbon compared to others relating to occupants’ lifestyle and activities.Originality/valueThis study will contribute to helping professionals and policy-makers to interpret and evaluate architectural design and construction processes for improving low-carbon dwellings in Bangladesh.


Author(s):  
María Eugenia Parrón-Rubio ◽  
María Dolores Rubio-Cintas ◽  
Francisca Pérez-García ◽  
Antonio Gonzalez-Herrera

Concrete consumption greatly exceeds the use of any other material in engineering. This is due to its good properties as construction material and the availability of its components. Nevertheless, the present worldwide construction increase and the high-energy consumption for cement production means a high environmental impact. On the other hand, one of the main problem in iron and steel industry is waste generation and by-products that must be properly processed or reused to promote the environmental sustainability. One of these by-products are blast furnace slag. Cement substitution by slag strategy achieves two goals, raw materials consumption reduction and waste management. In the present work, four different concrete mixtures are evaluated. 25% cement is substituted by different blast furnace slag. Tests are made to evaluate the advantages and drawbacks of each mixture. Depending on the origin, characteristics and treatment of the slag, concrete properties change. Certain mixtures provide proper concrete properties. Stainless steel slag produces a fluent mortar that reduces the water consumption whit a slight mechanical strength loss. Mixture with electric arc slag furnace properties are better to the reference concrete (without slag) when slag is treated similarly to the cement.


Fibers ◽  
2021 ◽  
Vol 9 (11) ◽  
pp. 63
Author(s):  
Mazhar Hussain ◽  
Daniel Levacher ◽  
Nathalie Leblanc ◽  
Hafida Zmamou ◽  
Irini Djeran-Maigre ◽  
...  

The palm oil industry is the leading source of palm oil waste fibers. The disposal of palm oil waste fibers by burning or dumping causes environmental issues such as the emission of CO2 and a diminution in soil fertility. Natural fiber reuse in construction materials such as concrete, mortar and adobe bricks as reinforcement provides a possible eco-friendly solution for fiber waste management. Palm oil flower fibers (POFL) obtained from palm oil empty fruit bunches and palm oil fruit fibers (POFR) obtained from palm oil fruit are two important types of palm oil fibers. Valorization of palm oil fibers requires a detailed analysis of their physical, chemical and mechanical characteristics. In this research, tropical palm oil flower and palm oil fruit fibers from Mexico were studied. Fiber extraction, preparation and testing were performed to observe their characteristics, which include water absorption, density, length, section estimation, chemical composition, thermal conductivity, thermal analysis (ATG) and tensile strength. The length, diameter and density of natural fibers have a significant influence on the strength and quality of composite materials. The characteristics of fibers vary with their chemical composition. Mechanical testing of palm oil fibers indicates a large variation in the tensile strength of palm oil flower and fruit fibers. Both palm oil flower and palm oil fruit fibers exhibit bilinear tensile load–deflection behavior associated with the alignment of cellulose along their fiber axis. The thermal characteristics of fibers indicate low thermal stability and thermal conductivity, which are essential for their use in building materials.


10.29007/8lk1 ◽  
2020 ◽  
Author(s):  
Manish Kumar Dixit ◽  
Sarel Lavy ◽  
Parag Abdagiri

Buildings consume nearly half of global energy each year in their construction and operation as embodied and operational energy releasing approximately 40% of global carbon emission. Embodied energy (EE) is consumed indirectly through the use of construction materials, assemblies, and equipment, and directly in construction processes and related transportation. Operational energy (OE) is consumed in building air-conditioning, heating, lighting, and powering equipment. Both EE and OE must be minimized to lower this huge energy footprint of buildings. To decrease EE, a complete and accurate EE assessment is essential, which, however, is a quite data-intensive and time-consuming process. EE is conventionally computed using process- and input-output (IO)-based methods. Hybrid approaches that combine the two methods are also used to compute EE. In an IO-based method, macroeconomic data is translated into energy flows, which indicates a potential relationship between energy and economic flows, and consequently between EE and cost. In this paper, we investigated the EE-cost relationship at the building and construction material levels and found a strong positive correlation between the EE and cost of the study buildings. The results indicate a need to further analyze this relationship through regression analysis to see if EE can be predicted from cost data.


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