Product-specific life cycle assessment of recycled gypsum as a replacement for natural gypsum in ordinary Portland cement: application to the Spanish context

2016 ◽  
Vol 117 ◽  
pp. 150-159 ◽  
Author(s):  
Sindy Suárez ◽  
Xavier Roca ◽  
Santiago Gasso
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Portland Cement ◽  
Ordinary Portland Cement ◽  
Recycled Gypsum

scholarly journals Life Cycle Assessment of Ordinary Portland Cement (OPC) Using both Problem Oriented (Midpoint) Approach and Damage Oriented Approach (Endpoint)

2021 ◽  
Author(s):  
Busola D. Olagunju ◽  
Oludolapo A. Olanrewaju
Keyword(s):  
Global Warming ◽  
Life Cycle Assessment ◽  
Life Cycle ◽  
Environmental Impact ◽  
Portland Cement ◽  
Ordinary Portland Cement ◽  
Cement Industry ◽  
The World ◽  
Clinker Production ◽  
Oriented Approach

The concern for environmental related impacts of the cement industry is fast growing in recent times. The industry is challenged with high environmental impact which spans through the entire production process. Life cycle assessment (LCA) evaluates the environmental impact of product or process throughout the cycle of production. This can be done using either or both midpoint (process-oriented) and endpoint (damage-oriented) approaches of life cycle impact assessment (LCIA). This study assessed the environmental impact of 1 kg Ordinary Portland Cement (OPC) using both approaches of LCIA. This analysis was carried out using a data modeled after the rest of the world other than China, India, Europe, US and Switzerland. The dataset was taken from Ecoinvent database incorporated in the SimaPro 9.0.49 software. The result of the analysis showed that clinker production phase produced the highest impact and CO2 is the highest pollutant emitter at both endpoint and midpoint approaches. This is responsible for global warming known to affect both human health and the ecosystem. Also, toxicity in form of emission of high copper affects the ecosystem as well as humans. In addition, high fossil resources (crude oil) are consumed and pose the possibility for scarcity.

Life cycle assessment of natural and recycled gypsum production in the Spanish context

2020 ◽  
Vol 253 ◽  
pp. 120056 ◽  
Author(s):  
M.A. Pedreño-Rojas ◽  
J. Fořt ◽  
R. Černý ◽  
P. Rubio-de-Hita
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Recycled Gypsum

scholarly journals The contribution of life-cycle assessment to environmentally preferable concrete mix selection for breakwater applications

2018 ◽  
Vol 18 (2) ◽  
pp. 413-429 ◽  
Author(s):  
Maristela Gomes da Silva ◽  
Vanessa Gomes ◽  
Marcella Ruschi Mendes Saade
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Portland Cement ◽  
Sodium Silicate ◽  
Impact Category ◽  
Cradle To Gate ◽  
Natural Aggregates ◽  
Comprehensive Framework ◽  
Regulation Compliance ◽  
Alkali Activated

Abstract Life cycle assessment (LCA) provides a comprehensive framework for positioning low energy and global warming potential alternatives regarding Portland cement and concrete. Published LCA work on alkali-activated cements is, however, relatively limited. In this paper, we illustrate how LCA critically supports concrete technological studies in the search for low impact concrete mixes. Previous research on breakwater applications explored replacing a low-clinker Portland cement and natural aggregates with seven different alkali-activated blast furnace slag (bfs) binder systems and with coarse and granulated bfs aggregates. Its outcome suggested a sodium silicate-activated bfs formulation as the best match between concrete properties and environmental regulation compliance. To validate this outcome through LCA, our cradle to gate assessments followed ISO 14044 (INTERNATIONAL…, 2006b) and used Ecoinvent v.2.2 and CML baseline 2001 v.2.05. We adopted the ‘net avoided burden approach’ to handle multifunctionality intrinsic to by-product-based AAC. Whilst sodium silicate-activated mixes rivaled the reference regarding GWP, impacts in several categories were increased. LCA highlighted the implications of driving mix selection by focusing on a single environmental impact category.

Development of a Life-Cycle Assessment Tool to Quantify the Environmental Impacts of Airport Pavement Construction

2017 ◽  
Vol 2603 (1) ◽  
pp. 89-97 ◽  
Author(s):  
Rebekah Yang ◽  
Imad L. Al-Qadi
Keyword(s):  
Monte Carlo ◽  
Life Cycle Assessment ◽  
Life Cycle ◽  
Portland Cement ◽  
Environmental Impacts ◽  
Assessment Tool ◽  
Original Design ◽  
Material Production ◽  
Airport Pavement ◽  
Pavement Construction

The environmental impacts of airport pavement construction were evaluated in this study through a life-cycle analysis approach. Total primary energy (TPE) consumption and greenhouse gas (GHG) emissions from material production and construction of pavement were determined by using life-cycle assessment (LCA), a quantitative methodology described in the ISO 14040 series. A tool was developed to implement a probabilistic LCA through the Monte Carlo method. This tool allowed for consideration of uncertainty from life-cycle inventory data. A case study on the construction of Runway 10R-28L at Chicago O'Hare International Airport focused on mainline and shoulder pavement designs. Environmental impacts from producing materials for the pavements increased from lower to upper layers, while asphalt layers had relatively higher TPE consumption than the upper portland cement concrete layer—and vice versa for GHGs. Impacts from material production overshadowed those from construction, which contributed less than 2% of TPE consumption and GHGs. Further analysis showed that two production processes—for asphalt binder and portland cement—were the leading contributors (45.3% and 29.2%, respectively) of TPE consumption, while the latter was the leading contributor (73.4%) of GHGs. A probabilistic analysis compared the original 10R-28L runway design and a modified design that did not use recycled materials or warm-mix asphalt technology. The results from 1,000 Monte Carlo simulations showed that the environmental impacts from the two cases were statistically significant, with the original design having lower TPE consumption (482 versus 693 MJ/yd2 for TPE) and GHGs (37.5 versus 53.9 kg of carbon dioxide equivalent per square yard).

scholarly journals Life Cycle Assessment of Biochar as a Partial Replacement to Portland Cement

2020 ◽  
Vol 479 ◽  
pp. 012025
Author(s):  
J. Campos ◽  
S. Fajilan ◽  
J. Lualhati ◽  
N. Mandap ◽  
S. Clemente
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Portland Cement ◽  
Partial Replacement

Life cycle assessment of the production of Portland cement: a Southern Europe case study

2016 ◽  
Vol 126 ◽  
pp. 159-165 ◽  
Author(s):  
Fernanda N. Stafford ◽  
Ana C. Dias ◽  
Luís Arroja ◽  
João A. Labrincha ◽  
Dachamir Hotza
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Portland Cement ◽  
Southern Europe

Life Cycle Assessment of Cement Clinker Production Using Coal Gangue as Alternative Raw Material and Fuel

2015 ◽  
Vol 814 ◽  
pp. 435-440 ◽  
Author(s):  
Jia Ping Cui ◽  
Yu Liu ◽  
Zhi Hong Wang ◽  
Xian Zheng Gong ◽  
Feng Gao ◽  
...  
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Portland Cement ◽  
Coal Gangue ◽  
Raw Material ◽  
Cement Clinker ◽  
Optimal Dosage ◽  
Portland Cement Clinker ◽  
Almost All ◽  
Clinker Production

Life cycle assessment (LCA) was carried out to quantify and analyze the environmental impact and benefit caused by the utilization of coal gangue as alternative raw material and fuel in cement clinker production. The optimal dosage of coal gangue was determined by comparing among different mixing amount scenarios and Portland cement clinker (clinker without adding any waste) considering the phases of coal gangue disposal, transportation, and raw meal grinding and clinker calcination. The results showed that: 1) After adding coal gangue to the raw meal, almost all the considered environmental impacts of cement clinker including human toxicity potential, photochemical smog potential, especially abiotic depletion potential decreased significantly. However, global warming potential and acidification potential increased slightly in comparison with Portland cement clinker. 2) Compared with the Portland cement clinker, the single environmental indicator reduced after adding coal gangue and the indicator decreased gradually with the dosage increasing.

Life cycle assessment of Portland cement production in Myanmar

2020 ◽  
Vol 25 (11) ◽  
pp. 2106-2121 ◽  
Author(s):  
Thant Zin Tun ◽  
Sebastien Bonnet ◽  
Shabbir H. Gheewala
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Portland Cement ◽  
Cement Production
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