concrete,crushing,energy consumption

Energy consumption of a laboratory jaw crusher during normal

2023.12.1 Abstract. This paper presents the measurement and analysis of energy consumption of a laboratory jaw crusher during concrete recycling. A method was developed to estimate the power requirements of a lab-scale jaw crusher. The impact of

Concrete aggregates properties crushed by jaw and impact

2019.1.1 open access Abstract This paper compares the use of jaw and impact secondary crushing for producing coarse recycled aggregates from concrete wastes, obtained from road pavement and demolished building materials.

Energy consumption assessment in a cement production plant

2015.6.1 Cement industry ISIRI 7873 standard CUSUM technique Introduction Until recently, most of industries believe that replacing low-efficient equipment with high-efficient ones can have great effect on their energy consumption, and thus reducing their

Assessing the energy efficiency of a jaw crusher - ScienceDirect

2014.9.1 Abstract It is well known and taken for granted that the efficiency of energy use by comminution (i.e. breaking, crushing, grinding) equipment is very low, typically less than 10%. Most of the process input power is dissipated as heat and noise and

Analysis of Fractal and Energy Consumption Characteristics of

consumption energy of crack growth. The distribution char-acteristic of the concrete fragment is the macroscopic reﬂec-tion of the results of its internal crack expansion. The study of the distribution of the fragment and the energy consump-tion of crack

Production of natural and recycled aggregates: the environmental ...

2017.6.22 We conclude that Iran’s current policy with an annual energy consumption of 1.48 million tons of oil equivalent (toe) can have a footprint of 2.88 million tons of CO 2 eq emissions per year (the first scenario).

Industrial production of recycled cement: energy consumption

energy consumption and carbon emissions associated with a novel process for producing cement by recycling used concrete and mortars. The novel process assessed resorts to the magnetic separation of the cement paste from the aggregates, followed by the thermal

Analysis of Fractal and Energy Consumption

The study of the distribution of the fragment and the energy consumption of crack propagation after concrete crushing can help people better evaluate and analyze the impact strength and energy evolution law of

Recycled cement production energy consumption optimization

2023.5.1 Recycled cement (RC) from the thermoactivation of hardened cement waste at low temperature is a very promising approach, tackling the reduction of the clinker factor, the reuse of construction and carbon emissions of RC production using a novel

(PDF) Analysis of Energy Consumption of Crushing

2017.1.27 Their configuration makes substantial influence on energy consumption and magnitude of crushing forces. The previous approach [10] considered analysis of distribution and values of forces ...

Production of natural and recycled aggregates: the environmental ...

2017.6.22 The energy consumption and CO 2 emissions [] are the most visible environmental criteria in the feasibility of recycling concrete measures [].The scenarios of emissions include CO 2, CO, C x H y, NO x, and SO 2 pollutants. In this research, however, we only investigate CO 2 emissions with respect to their importance in the field of

Concrete aggregates properties crushed by jaw and impact secondary crushing

2019.1.1 Particle size distribution curves of recycled aggregates from building demolition concrete crushed by jaw and impact crushers. The jaw crusher produced 60% of coarse aggregates in weight, whereas the impact crusher produced 49% coarse aggregates. The proportion of particles finer than 0.15 mm is around 7–8% weight for both crushing

(PDF) . Energy consumption in cement and concrete, and role of

2011.12.17 For the manufacture of cement, which accounts for approximately 12.0% of the weight of concrete (Karim et al., 2011), a temperature of 1,4508C is expected (Mian et al., 2013) while the energy ...

Environmental impacts and decarbonization strategies in the

2020.9.22 The use of cement and concrete, among the most widely used man-made materials, is under scrutiny. Owing to their large-scale use, production of cement and concrete results in substantial emission ...

Crushing Energy Efficiency - North American Mining Magazine

2021.6.10 Mining Energy Consumption 2021: A High-Level Study into Mining Energy Use for the Key Mineral Commodities of the Future (Engeco; 2021). ... According to a study by Ndhlala, crushing circuits account for 3%-5% of energy consumption in Botswana: Ndhlala, B., Modelling, Simulation and Optimisation of a Crushing Plant (July

Energy Consumption of Self-Compacting Concrete during Mixing

2020.11.22 1.2. Energy Consumption during the Mixing of Concrete in This Project. The concrete is manufactured in the RMC plant in many ways, such as thoroughly mixed state and partially mixed concrete, that is, the fully mixed concrete is carried at the plant, and in other cases, partial mixing is done at the plant, while the remaining mix is

Industrial production of recycled cement: energy consumption

Most of the non-renewable resources consumption asso - ciated with concrete takes place during the production of its components. In particular, cement consumes, by far, the largest amount of energy during production, despite rep-resenting a smaller fraction of the concrete volume than the aggregates. Furthermore, due to the high temperatures

Comparison of energy consumption and carbon emissions from

2021.7.15 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

Determination of crushing energy during vibratory crushing

2019.10.1 During the study, electrical energy used on the crushing process was measured as a function of changing design and kinematic parameters of the vibratory crusher, i.e.: jaws stroke, the outlet gap ...

Effect of Drilling and Blasting Performance on the Energy Consumption ...

2017.12.1 A Çelik. B Kekeç. Bilim, N.. Çelik, A., Kekeç, B., 2015. Determination of the Effect of Drilling-Blasting Operation on Total Cost in Quarry, 8th Drilling-Blasting Symposium, p.259-266 ...

Comminution and sizing processes of concrete block waste as

2015.11.1 As expected, Route 3 (crushing, grinding and screening) is the method that requires the most energy: 1.8 times more energy than Route 2 (crushing and screening) and 7 times more energy than Route 1 (screening). Considering the estimated energy consumption of Route 1 as the baseline, Fig. 10 b shows the relative

Results of laboratory tests of crushing energy and

Demand for high quality recycled concrete aggregates ... (UCS) of rocks is a dominating factor for crushing energy consumption in jaw crushers. Kahraman et al. [26] and Comakli and Cayirli ...

Design Method for Reinforced Concrete Based on Bond-Slip Energy Consumption

2022.11.25 To reveal the energy consumption characteristics of a steel bar and all-lightweight shale ceramsite concrete (ALWSCC), focusing on hot rolled crescent ribbed bars (CRB) and hot rolled plain steel bars (PSB), a series of pull-out tests were carried out. The bonding failure modes, the contribution of the ribs to bond-slip failure and the

Comparative Environmental Impacts of Recycled Concrete

2022.4.9 As per the observation, CO2 emission and primary energy consumption in 1-ton RCA were 10% and 18.5% less than 1-ton MS. ... was used to measure the sound emitted during the crushing of demolished reclaimed concrete and during the crushing of stones. A 110-dB noise level was recorded at the stone crushing plant, ...

Energy consumption of a laboratory jaw crusher during normal

2023.10.5 Energy consumption for concrete crushing (the idle state is . not included). Fig. 8. Power-time graph for concretes with 28-days strength on left 40 MPa and on right 90 MPa.

Mechanical properties and crushing mechanism of axially

2023.12.1 Energy consumption can be quantitatively described by the fractal characteristics of sample crushing [39], [40]. Crushing mortar test blocks after impact were collected, and standard sieves of 0.6, 2.5, 5, 9.5, 16 and 25 mm were used to divide the pieces into seven grades: 0–0.6 mm, 0.6–2.5 mm, 2.5–5 mm, 5–9.5 mm, 9.5–16 mm,

Prediction of power consumption and product size in cone crushing

1991.1.1 Concrete specimens were cured for 28 days; at which time, concrete properties were obtained through tests such as bulk density, compressive strength, tensile strength, rebound number and ultrasonic pulse velocity. The impact of different aperture size (5 mm and 25 mm) on the energy consumption was also studied.

Energy and CO2 from high performance recycled aggregate

2014.9.1 Mechanical processing, combined with microwave heating, increases energy consumption from 3 to a little more than 4 times conventional recycling. Consequently, CO 2 emissions released by conventional coarse aggregate production go from 1.5 to 4.5 kgCO 2 /t, to around 200 kgCO 2 /t, for that of fossil fuel fed thermo

(PDF) Comparison of the energy consumption in the production

2020.12.11 Energy consumption involved in the different stages of production of 1 tonne of natural and recycled concrete aggregate. Figures - available via license: Creative Commons Attribution 3.0 Unported ...