Use of ground coal bottom ash as cement constituent in concretes exposed to chloride environments

Argiz, Cristina; Moragues, Amparo; Menéndez, Esperanza

doi:10.1016/j.jclepro.2017.09.117

Cited by 101 publications

(37 citation statements)

References 27 publications

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“…It was also detected that original CBA has less specific gravity as compared with the ground CBA, because ground CBA contains finer particles. However, ordinary Portland cement have specific gravity of 3.10 [24]. Beside that loss of ignition for original CBA is lower as compared to the grinded CBA, this happens due to unburned corban present in CBA.…”

Section: Discussion On Previous Findings 31 Physical Propertiesmentioning

confidence: 99%

“…7 Chloride concentrations for different specimens after 360 days [23] Recently, Argiz, et .al. [24] Carried out research on the utilization of ground CBA as a new supplementary cementing material in concrete. They found ground CBA as an alternative material of cement, with good durability performance, especially in chloride ingress and they also declared a linear relationship between the chloride diffusion coefficient and chloride migration coefficient with 10% of CBA.…”

Section: Durability Performancesmentioning

confidence: 99%

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A Review on Potential Use of Coal Bottom Ash as a Supplementary Cementing Material in Sustainable Concrete Construction

Mangi

Ibrahim

Jamaluddin

et al. 2018

IJIE

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The demand of concrete is increased rapidly due to worldwide growth in infrastructural development. Consequently, consumption of concrete also raises the demand for Portland cement, because it is the fundamental material in concrete construction. The increasing demand for Portland cement is expected to be encountered by introducing new supplementary cementing materials. Considering the sustainability of construction, it is imperative to develop supplementary cementing materials from the industrial waste by-products; one of such waste is the coal bottom ash, produced by coal-based thermal power plants. Previously several studies have been conducted on the utilization of coal bottom ash in its original form as natural sand replacement, but limited research has been reported on the coal bottom ash as replacement of cement. It was observed through the literature review that the original coal bottom ash is porous in nature, and cannot be used as a replacement of cement, but after the proper grinding, it possesses the good pozzolanic property and could be utilized as replacement of cement in concrete. The result of this review has indicated that ground coal bottom ash has a good potential to be utilized as supplementary cementing materials in concrete construction. The aim of this review is to summarize the previous findings on the utilization of coal bottom ash as supplementary cementing materials in concrete construction. Hence, this article will deliver the key information and valuable material for the researchers looking for the supplementary cementing materials in the field of advanced concrete technology.

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Section: Discussion On Previous Findings 31 Physical Propertiesmentioning

confidence: 99%

Section: Durability Performancesmentioning

confidence: 99%

A Review on Potential Use of Coal Bottom Ash as a Supplementary Cementing Material in Sustainable Concrete Construction

Mangi

Ibrahim

Jamaluddin

et al. 2018

IJIE

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“…CBA has pozzolanic characteristics and could potentially be utilized in concrete as a cement replacement material, by reducing its particle size. A recent study was conducted on the use of ground CBA as cement constituents in concrete by Argiz, et al [10]. This study compared the performances of CFA ash and ground CBA, in terms of strength and durability, and found that ground CBA had durability.…”

Section: Methodsmentioning

confidence: 99%

Recycling of Coal Ash in Concrete as a Partial Cementitious Resource

et al. 2019

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Concrete construction offers a great opportunity to replace the cement with a coal-based power plant waste—known as coal bottom ash (CBA)—which offers great environmental and technical benefits. These are significant in sustainable concrete construction. This study aims to recycle CBA in concrete and evaluate its particle fineness influence on workability, compressive and tensile strength of concrete. In this study, a total of 120 specimens were prepared, in which ground CBA with a different fineness was used as a partial cement replacement of 0% to 30% the weight of cement. It was noticed that workability was decreased due to an increased amount of ground CBA, because it absorbed more water in the concrete mix. The growth in the compressive and tensile strength of concrete with ground CBA was not significant at the early ages. At 28 days, a targeted compressive strength of 35 MPa was achieved with the 10% ground CBA. However, it required a longer time to achieve a 44.5 MPa strength of control mix. This shows that the pozzolanic reaction was not initiated up to 28 days. It was experimentally explored that 10% ground CBA—having particle fineness around 65% to 75% and passed through 63 µm sieve—could achieve the adequate compressive and tensile strength of concrete. This study confirmed that the particle fineness of cement replacement materials has a significant influence on strength performance of concrete.

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“…They observed that samples containing bottom ash had adequate strength, and the composites were resistant to chloride ingress. Argiz et al [20] also evaluated the performance of bottom ash as a cement constituent against chloride resistance. They mentioned that concrete made with cement containing 25% had better resistance compared to reference concrete beyond 28-days.…”

Section: Introductionmentioning

confidence: 99%

Physical, Mechanical and Durability Performance of Pastes Containing Carbon Fiber

Atiyeh¹,

Aydın²

2020

Preprint

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The damage caused by global warming is rapidly increasing, and its adverse effects become more evident with each passing day. Although it is known that the use of alternative binder materials in concrete would decrease this negative effect, reluctance to new composites continues. Waste use plays a vital role in sustainability studies. In this study, pure cement paste was prepared and enriched with carbon fiber. This study investigated the wide range of volume fraction of carbon fiber in cement-based composites. Two different industrial wastes, marble dust, and bottom ash were chosen and mixed with cement and four different (0.3%, 0.75%, 1.5%, and 2.5%) carbon fiber volume fractions. Based on physical, mechanical, and durability tests at 7, 28, and 56-days of curing, the composites were resistant to sulfate and seawater attack. The 0.75% carbon fiber addition seems to be an optimum volume percentage beyond which both physical and mechanical properties were adversely affected. The composites with 0.75% carbon fiber have reached 48.4 MPa and 47.2 MPa at 56-days of curing for marble dust and bottom ash mixture groups, respectively.

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Use of ground coal bottom ash as cement constituent in concretes exposed to chloride environments

Cited by 101 publications

References 27 publications

A Review on Potential Use of Coal Bottom Ash as a Supplementary Cementing Material in Sustainable Concrete Construction

A Review on Potential Use of Coal Bottom Ash as a Supplementary Cementing Material in Sustainable Concrete Construction

Recycling of Coal Ash in Concrete as a Partial Cementitious Resource

Physical, Mechanical and Durability Performance of Pastes Containing Carbon Fiber

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