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STUDY OF LIMITS FOR CEMENT AND GWP OF CONCRETE

2019-10-18  STUDY OF LIMITS FOR CEMENT AND GWP OF CONCRETE This is a summary of a study of both cement content and embodied carbon in concrete used in Northern California. The first section of the summary is intended to be included as an appendix to support the proposed code language. The second section documents the history and process

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Global warming potential (GWP) range for cementitious

Cement is responsible for 7% of global greenhouse gas emissions, and is predicted to grow with increasing development. The majority is used in concrete, globally the most common material in...

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Specification Guidance – SE2050

Re-evaluate concrete specifications to eliminate unnecessary prescriptive requirements on materials such as minimum or maximum cement content, minimum or maximum fly ash or slag content, maximum w/cm ratio, etc. Consider specifying only performance requirements, such as compressive strength and exposure class.

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GWP of concrete mixes, per cubic meter of concrete,

The results suggested that maximum mechanical performance and minimum GWP can be simultaneously achieved at 5–10% replacement of cement with GGBS, while to satisfy the minimum strength requirement,...

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GWP and compressive strength values of concrete mixes

The increase in cement production as a result of growing demand in the construction sector means an increase in energy consumption and CO2

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A framework for specifying low-carbon construction

2022-4-15  Through exploring several construction materials types to be considered for low carbon procurement, concrete, which is a mixture of fine and coarse aggregates, water and roughly 25–40% by volume cement paste, is the most widely used construction material that increase the total CO2 emissions and energy use ( Paik and Seunguk, 2019 ).

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CarbonCure’s Impact on the Global Warming Potential

2022-6-26  the concrete’s compressive strength, enabling concrete producers to reduce cement content in their mixes and achieve further carbon reductions without compromising the concrete’s quality. Global Warming Potential (GWP) and Environmental Product Declarations (EPDs) Global Warming Potential (GWP) is a unit of measurement that assesses the

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Comparative Analysis of the Global Warming Potential

2022-7-22  The results indicate that GWP values for dimensional structural stone (135 kg.CO 2 /m 3) are 45–75% lower than the concrete products considered in this investigation (246–514 kg.CO 2 /m 3 ), and over 99% lower than certain steel products (22,294–29,202 kg.CO 2 /m 3 ).

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Perspectives and limits for cement kilns as a destination

2008-11-1  A technical-economic study referring to the prospects for the UK cement industry recently estimated, depending on cement production growth (with an expected range of variation from 0% to 2%), energy efficiency improvements, thermal substitution from 5% to 10%, and the use of substitute residue fuels from 125,000 to 600,000 t/y (Juniper ...

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The Environmental Profile of Clinker, Cement, and

2022-1-28  The systems studied for clinker and cement accounted for 62.8% of the cement used in Ecuador in 2019. The clinker, cement, and concrete systems have cradle-to-gate approaches. Technical system boundaries for clinker include extraction and transport of raw materials, fuels, rotary kiln, and cooling.

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Global warming potential (GWP) range for

Alice Moncaster. Cement is responsible for 7% of global greenhouse gas emissions, and is predicted to grow with increasing development. The majority is used in concrete, globally the most common ...

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A framework for specifying low-carbon construction

2022-4-15  This study of limits for cement and embodied carbon of concrete resulted in the proposed low carbon concrete specification limits and language along with the proposed compliancy forms. This approach was based on collecting product specific EPDs and using the data to create GWP limits based on the A1-A3 scope signals, which is considered as a ...

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Results for Portland cement and concrete

2014-1-9  Framework. The framework of this study is shown in Fig. 2.To develop a region-specific inventory, the manufacturing processes for cement and concrete in local and nearby areas were studied, the GHG emission sources over the

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Study of low-cement concrete mix-design through particle

2021-10-1  1. Introduction. Concrete is a building material widely used at civil construction, not only for its low cost, but also due to an easy implementation and satisfactory behavior when subjected to mechanical stresses [1,2].However, high cement consumptions in concretes may promote the development of cracks by thermal and chemical shrinkage, and cause economic

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Life cycle assessment of concrete made with high volume

2018-12-1  Fig. 5 shows the GWP of 1 m 3 of concrete obtained by some studies (Braga et al., 2017; Marinković et al., 2010; NRMCA-EPD: 10046, 2014; Tošić et al., 2015). Similarly to our study, the results of these studies show that the GWP is mainly affected by cement content and that it significantly decreases with the incorporation ratio of FA.

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Life-Cycle Assessment of Concrete: Decision-Support Tool

GWP reduced significantly with the replacement of ordinary portland cement with supplementary cementitious materials (SCMs) such as fly ash and slag in concrete. Additionally, it was shown that environmentally and structurally advantageous concrete mixtures could be made with high-volumes of fly ash and limestone.

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Quantifying and reducing the carbon footprint of a

2022-3-23  different levels of slag and fly ash in the concrete mixtures. 6. Once all the concrete information is defined for each project, the user can then run a report that will provide the estimated GWP, along with other impacts, for each building. The reference building will represent the largest GWP and the proposed designs will represent lower GWP.

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Potential-analysis of grey energy limits for residential

2016-9-1  Here is discovered that 9–46% of all energy is accounted for grey energy. This study covered low-energy buildings erected before 2007. As todaýs and future energy standards are even more energy efficient, this share will even increase. ... Using natural insulation can even reduce the GWP of a flat concrete roof. For floor slabs the carbon ...

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Effects of composition and exposure on the solar

2001-12-21  Concrete albedo generally correlated with cement albedo and sand albedo and, after abrasion, with rock albedo. Cement albedo had a disproportionately strong influence on the reflectance of concrete. Simulated more » weathering, soiling, and abrasion each reduced average concrete albedo, though some samples became slightly more reflective ...

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Life-Cycle Assessment of High-Strength

2019-1-2  In their recent study, Gursel and Ostertag indicated that, by importing cement and aggregates from importers in close proximity to Singapore, such as Malaysia, embodied energy and GWP of concrete mixtures were reduced by

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STUDY OF LIMITS FOR CEMENT AND GWP OF CONCRETE

2021-10-24  Bay Area Low Carbon Concrete Code. Last updated 10/18/2019 Page 1 of 16 STUDY OF LIMITS FOR CEMENT AND GWP OF CONCRETE This is a summary of a study of both cement content and embodied carbon in concrete used in Northern California. The first section of the summary is intended to be included as an appendix to support the proposed

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(PDF) COMPARATIVE STUDY OF CEMENT CONCRETE AND

COMPARATIVE STUDY OF CEMENT CONCRETE AND GEOPOLYMER MASONRY BLOCKS. Editor IJRET. Download Download PDF. Full PDF Package Download Full PDF Package. This Paper. A short summary of this paper. 37 Full PDFs related to this paper.

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Results for Portland cement and concrete

2014-1-9  Framework. The framework of this study is shown in Fig. 2.To develop a region-specific inventory, the manufacturing processes for cement and concrete in local and nearby areas were studied, the GHG emission sources over the

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Life cycle assessment of concrete made with high volume

2018-12-1  Fig. 5 shows the GWP of 1 m 3 of concrete obtained by some studies (Braga et al., 2017; Marinković et al., 2010; NRMCA-EPD: 10046, 2014; Tošić et al., 2015). Similarly to our study, the results of these studies show that the GWP is mainly affected by cement content and that it significantly decreases with the incorporation ratio of FA.

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Explained: Cement vs. concrete — their differences, and

2020-4-3  What makes concrete so strong is the chemical reaction that occurs when cement and water mix — a process known as hydration. “Hydration occurs when cement and water react,” says Ulm. “During hydration, the clinker dissolves into the calcium and recombines with water and silica to form calcium silica hydrates.”

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Embodied carbon of concrete in buildings, Part 1: analysis

2020-6-5  Cement is responsible for 7% of global greenhouse gas emissions, and is predicted to grow with increasing development. The majority is used in concrete, globally the most common material in buildings. Reducing emissions from the use of cement and concrete in buildings is therefore critical in order to limit global warming.

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Environmental performance of ordinary and new

2018-12-14  Composition of concrete mixtures. The study was performed for ordinary concrete (NSC), HPC and HPSCC mixtures in which the amount of silica fume was changed (0, 5, 10 and 15% of cement mass), while the binder content (500 kg/m

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Air permeability, water penetration and water absorption

concrete has to be considered. Cement clinker – which represents 95 wt.% of ordinary Portland cement (PC) according to EN 197‐1:2018 and is also the main constituent of Portland composite cement – is primarily responsible for GWP and PEt of the paste of normal concrete [1,2]. In an

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Cement and Concrete Composites - Journal - Elsevier

N. Banthia. This journal is designed to reflect current developments and advances being made in the general field of cement-concrete composites technology and in the production, use, and performance of cement-based construction materials. The word cement is interpreted in a wide sense, including not only Portland cement but also blended cements ...

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Emissions from the Cement Industry - State of the Planet

2012-5-9  Cement manufacturing is highly energy- and emissions-intensive because of the extreme heat required to produce it. Producing a ton of cement requires 4.7 million BTU of energy, equivalent to about 400 pounds of coal, and generates nearly a ton of CO 2. Given its high emissions and critical importance to society, cement is an obvious place to ...

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