Artificial Neural Network-Forecasted Compression Strength of Alkaline-Activated Slag Concretes

Tang, Yi Xuan; Lee, Yeong Huei; Amran, Mugahed; Fediuk, Roman; Vatin, Nikolai; Kueh, Ahmad Beng Hong; Lee, Yee Yong

doi:10.3390/su14095214

Cited by 31 publications

(14 citation statements)

References 76 publications

(80 reference statements)

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“…The amalgamation of powder content for each concrete has a different effect on power consumption. In most cases, the combination of cement and fly ash consumes more power during the mixing process, while the combination of cement and GGBS consumes the least power [21,26,47,48]. When observing these three grades of concrete, it can be seen that the combination of powder content is another factor that affects power consumption.…”

Section: Resultsmentioning

confidence: 99%

Effects of Admixtures on Energy Consumption in the Process of Ready-Mixed Concrete Mixing

et al. 2022

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The production and utilization of concrete and concrete-based products have drastically increased with the surge of construction activities over the last decade, especially in countries such as China and India. Consequently, this has resulted in a corresponding increase in the energy used for the production of ready-mixed concrete. One approach to reduce the cost of concrete manufacturing is to reduce the energy required for the manufacturing process. The main hypothesis of this study is that the power required for mixing the concrete can be reduced through the use of mineral admixtures in the mix design. 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 of the different materials used in the concrete in a closed chamber. In the current research, fly ash and ground granulated blast-furnace slag (GGBS) were used as mineral admixtures to produce ready-mixed concrete. The experimental study focused on the influence of GGBS and fly ash on power consumption during concrete mixing. The results indicated that the use of a higher content of GGBS is more beneficial in comparison to the use of fly ash in the mix due to the lower mixing time required to achieve homogeneity in the mixing process. It was found that the amount of energy required for mixing is directly related to the mixing time for the mix to achieve homogeneity.

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Section: Resultsmentioning

confidence: 99%

Effects of Admixtures on Energy Consumption in the Process of Ready-Mixed Concrete Mixing

et al. 2022

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“…The μ value shown in the figure is based on exposure to photons at a 0.662 MeV energy level. Additives such as silica fume [ 130 ], GGBS [ 131 , 132 , 133 , 134 ], rice husk ash [ 135 , 136 ], palm oil fuel ash [ 137 , 138 , 139 , 140 , 141 ], and fly ash [ 142 , 143 , 144 , 145 , 146 , 147 , 148 , 149 , 150 , 151 ] serve as a partial cement replacement, which aims to reduce the carbon footprint of concrete [ 152 , 153 , 154 , 155 , 156 , 157 ]. The 60% increase in the fly ash replacement for cement in concrete reduced the μ value by 10% [ 63 ].…”

Section: Radiation Shieldingmentioning

confidence: 99%

Recent Trends in Advanced Radiation Shielding Concrete for Construction of Facilities: Materials and Properties

et al. 2022

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Nuclear energy offers a wide range of applications, which include power generation, X-ray imaging, and non-destructive tests, in many economic sectors. However, such applications come with the risk of harmful radiation, thereby requiring shielding to prevent harmful effects on the surrounding environment and users. Concrete has long been used as part of structures in nuclear power plants, X-ray imaging rooms, and radioactive storage. The direction of recent research is headed toward concrete’s ability in attenuating harmful energy radiated from nuclear sources through various alterations to its composition. Radiation shielding concrete (RSC) is a composite-based concrete that was developed in the last few years with heavy natural aggregates such as magnetite or barites. RSC is deemed a superior alternative to many types of traditional normal concrete in terms of shielding against the harmful radiation, and being economical and moldable. Given the merits of RSCs, this article presents a comprehensive review on the subject, considering the classifications, alternative materials, design additives, and type of heavy aggregates used. This literature review also provides critical reviews on RSC performance in terms of radiation shielding characteristics, mechanical strength, and durability. In addition, this work extensively reviews the trends of development research toward a broad understanding of the application possibilities of RSC as an advanced concrete product for producing a robust and green concrete composite for the construction of radiation shielding facilities as a better solution for protection from sources of radiation. Furthermore, this critical review provides a view of the progress made on RSCs and proposes avenues for future research on this hotspot research topic.

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“…The common observation in the results of these studies was that the copper slag addition increases the compressive strength over the control concrete. Most research has concluded that 30% to 40% of copper slag is the optimum replacement [38,79,80]. Some studies have confirmed that the compressive strength gradually increases up to 60%, and then decreases.…”

Section: Destructive Testing 431 Compressive Strengthmentioning

confidence: 99%

“…Some studies have confirmed that the compressive strength gradually increases up to 60%, and then decreases. Moreover, it was found that 100% copper slag replacement does not meet the mean target strength [38,81,82]. Adding fiber contributes to the enhancement of compressive strength by 6%.…”

Section: Destructive Testing 431 Compressive Strengthmentioning

confidence: 99%

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Destructive and Non-Destructive Testing of the Performance of Copper Slag Fiber-Reinforced Concrete

Chakrawarthi¹,

Dharmar

Avudaiappan

et al. 2022

Materials

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Concrete technology is adopted worldwide in construction due to its effectiveness, performance, and price benefits. Subsequently, it needs to be an eco-friendly, sustainable, and energy-efficient material. This is achieved by replacing or adding energy-efficient concrete materials from industries, such as ground granulated blast furnace slag, steel slag, fly ash, bottom ash, rice husk ash, etc. Likewise, copper slag is a waste material produced as molten slag from the copper industry, which can be used in concrete production. Copper slag can perform roles similar to pozzolans in the hydration process. This paper extends the comparative study of copper slag concrete with polypropylene fiber (PPF) subjected to destructive and non-destructive testing. Under destructive testing, compressive strength of concrete cubes, compressive strength of mortar cubes, splitting tensile tests on cylindrical specimens, and flexural tests on plain cement concrete were conducted and analysed. Ultrasonic pulse velocity and rebound hammer tests were performed on the samples as per IS13311-Part 1-1992 for non-destructive testing. The 100% replacement of copper slag exhibited a very high workability of 105 mm, while the addition of 0.8% PPF decreased the flowability of the concrete. Hence, the workability of concrete decreases as the fiber content increases. The density of the concrete was found to be increased in the range of 5% to 10%. Furthermore, it was found that, for all volume fractions of fiber, there was no reduction in compressive strength of up to 80% of copper slag concrete compared to control concrete. The 40% copper slag concrete was the best mix proportion for increasing compressive strength. However, for cement mortar applications, 80% copper slag is recommended. The findings of non-destructive testing show that, except for 100% copper slag, all mixes were of good quality compared to other mixes. Linear relationships were developed to predict compressive strength from UPV and rebound hammer test values. This relationship shows better prediction among dependent and independent values. It is concluded that copper slag has a pozzolanic composition, and is compatible with PPF, resulting in good mechanical characteristics.

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Artificial Neural Network-Forecasted Compression Strength of Alkaline-Activated Slag Concretes

Cited by 31 publications

References 76 publications

Effects of Admixtures on Energy Consumption in the Process of Ready-Mixed Concrete Mixing

Effects of Admixtures on Energy Consumption in the Process of Ready-Mixed Concrete Mixing

Recent Trends in Advanced Radiation Shielding Concrete for Construction of Facilities: Materials and Properties

Destructive and Non-Destructive Testing of the Performance of Copper Slag Fiber-Reinforced Concrete

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