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Concrete is the most-used construction material worldwide. Previous studies on the environmental impacts of concrete production have mainly focused on the materials involved and energy consumption ...
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Concrete is the most-used construction material worldwide. Previous studies on the environmental impacts of concrete production have mainly focused on the materials involved and energy consumption ...
WhatsApp: +86 18221755073
Gu W, Li Z, Chen Z and Li Y (2020) An energy-consumption model for establishing an integrated energy-consumption process in a machining system, Mathematical and Computer Modelling of Dynamical Systems, 10.1080/13873954.2020.1833045, 26:6, (534-561), Online publication date: 1-Nov-2020.
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Energy Consumption: Energy consumption is a crucial parameter in assessing the environmental impact of a product's life cycle [106]. It quantifies the amount of energy utilised at different stages, including raw material extraction, manufacturing, transportation, product use, and end-of-life processes.
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The production of cement is an energy-intensive process. Typically, energy consumption accounts for 20-40% of production costs. In 2008, the U.S. cement industry spent about $1.7 billion to purchase energy; around $0.75 billion of this was for electricity and $0.9 ... concrete, which is a combination of cement, mineral aggregates and water ...
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1. Introduction. Power consumption and therefore efficiency of crushing equipment are becoming increasingly important mainly due to the continuous and rapid increase of energy costs and efforts to minimise CO 2 emissions (Tromans, 2008, Legendre and Zevenhoven, 2014).In order to meet the Paris Climate Agreement goals, …
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Energy Efficiency: Our RMC plants are equipped with advanced technologies that reduce energy consumption during the manufacturing process. Lower Carbon Footprint: Utilizing Kamdhenu's RMC Concrete not only results in lower greenhouse gas emissions but also enhances efficiency in transportation, thus reducing the necessity for on-site mixing.
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In this work, the life cycle energy consumption (EC LCA) of pelletizing is calculated following formula (1), which is the sum of process energy consumption (EC) and the corresponding primary fossil consumption factor (PFCF). (1) E C L C A = ∑ (E C s, j × P F C F j, i) where. EC s,j process energy consumption of one ton pellet during the ...
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The research results show that by optimizing the mixing time, energy consumption is reduced by about 17% in comparison with the traditional mixing process. Productivity gains are significantly ...
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Globally, ~40% of global final energy use and energy- and process-related greenhouse gas emissions are caused by buildings and construction activities in which cement is an essential ingredient 1 ...
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Both electrical and thermal specific energy consumption decreased about 22.6% and 19.9%, respectively from 2008 to 2010, which successfully complied with the …
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The CO 2 emissions associated with the cement and concrete cycle are calculated based on a comprehensive dataset documenting energy consumption and …
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The optimal DEC regime, consuming a mere 450 min, contrasts with the lengthy 780 min process required for steam curing. By considering time and energy consumption, the unit-strength energy–time product of DEC ranges between 22.01% and 27.86 % (at age 1 d) and 17.93%–23.45 % (at age 28 d) of that of steam curing.
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Optimization of energy consumption during mixing using admixtures in concrete manufacturing is the predominant focus of this article. To achieve this objective, power consumption data were measured and analyzed throughout the concrete mixing process. The power consumption curve is the only source to distinguish the behavior …
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Diesel consumed for the backfilling process is higher than for the excavation in P1. However, this situation is the opposite in P2. This is due to the site conditions. ... Based on the total energy consumption, concreting activity consumes a high level of energy in these projects. However, as the project involves the demolition of buildings …
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1. Introduction. Concrete is a sustainable and versatile construction material which can produce structures that last for thousands of years. Due to the many areas of application, concrete is the second most consumed material on Earth, only after water, with a global production of around 4.1 billion tons of cement in 2021 (Statista, 2023), and an …
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In general, the unit process energy consumption models are developed by means of observing and monitoring energy consumption related to process variables, namely empirical modelling [8]. There were four stages of developing the empirical models. Firstly, a design of experiments (DOE) defined the tested process variables and their …
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Being an energy intensive industry, typically this segment of industry accounts for 50–60% of the total production costs [17].Thermal energy accounts for …
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Request PDF | Thermal model of precast concrete curing process: Minimizing energy consumption | Worldwide, precast concrete elements are becoming the primary construction materials, and there have ...
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However, the process of mixing concrete is energy-intensive and exerts significant wear and tear on the mixing blades, leading to maintenance costs and environmental concerns.
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Global cement emission patterns. Global emissions from cement production reached 2059 Mt CO 2 in 2018, where energy- and process-related emissions account for 34% and 66% respectively. Developed ...
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They are hindered by low CO 2 capture efficiency and high energy consumption. Even worse: The resulting concrete is often weakened, hampering its applicability.
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Downloadable (with restrictions)! Worldwide, precast concrete elements are becoming the primary construction materials, and there have been conducted numbers of studies on their manufacturing process, mechanical properties and curing regime. However, the energy consumption of the precast concrete manufacturing process and specifically the …
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The cement production process emits approximately 0.9 tons of CO 2 per ton of cement (Hasanbeigi et al. 2010), accounting for about 5–8% of global CO 2 emissions and ranking as the second-largest CO 2 emissions source (Mikulčić et al. 2016; Kajaste and Hurme 2016).According to the Intergovernmental Panel on Climate Change (IPCC) …
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operation dominates the energy consumption and environmental impacts associated with the manufacture of cement and use of concrete and accounts for 74.2% of the industries' energy consumption. U.S. pyroprocessing systems, on average, operate at roughly 34% energy efficiency. -i
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Industry represents 30% of U.S. primary energy-related carbon dioxide (CO 2) emissions, or 1360 million metric tonnes of CO 2 (2020). The Industrial Decarbonization Roadmap focuses on five of the highest CO 2-emitting …
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Optimization of energy consumption during mixing using admixtures in concrete manufacturing is the predominant focus of this article. To achieve this objective, power consumption data were ...
WhatsApp: +86 18221755073
However, comparing this additional energy consumption in processing the concrete waste with the energy required to process the raw material for Portland cement production, it should be significantly lower due to: i) the higher porosity of the concrete waste, being easier to mill than the natural raw material used in the clinker production; …
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Concrete is the world's most widely used man-made material, with consumption growing exponentially as populations and incomes rise 1,2,3.Concrete's popularity, which stems from its low cost ...
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Section 3 estimates the energy use in the U.S concrete industry, covers how energy is used in making concrete products in the U.S. and is helpful in identifying where to focus …
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