Preliminary Study on the Durability Properties of High-Volume Fly Ash Mortar Composites

Aydın, Ertuğ; Balkıs, Ayşe Pekrioğlu

doi:10.1520/jte20160221

Cited by 13 publications

(7 citation statements)

References 25 publications

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“…According to their results, it was observed that the highest ultrasonic wavelength was in the concrete with 40% fly ash replacement. Aydın and Balkis [ 81 ] noted in their study that the use of fly ash in concrete contributed to the formation of the C-S-H structure, which contributes to the strong and durable structure of the concrete. The C-S-H structure formed by fly ash causes it to fill the gaps and form an impermeable material.…”

Section: Resultsmentioning

confidence: 99%

Effects of Ultrafine Fly Ash against Sulphate Reaction in Concrete Structures

Demir Şahin,

Eker

2024

Materials

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In this study, Afşin Elbistan C-type fly ash (FA) was used, which protects against the sulphate reaction that damages concrete. The detrimental effects of post-reaction decrease with increasing fly ash fineness. The study used 10%, 30%, and 50% weight substitutes of cement. The fly ash was ground in a ball mill for 0, 10, 20, 30, 45, and 60 min, and Blaine fineness values of 1555, 1632, 2347, 2589, 2766, and 3433 cm2/g were obtained, respectively. The effect of the samples on the sulphate resistance was investigated by exposing the samples to 5% or 10% added sulphate solutions, and the compressive strength and ultrasonic pulse velocity of the concrete were tested. The compressive strength values obtained decreased with the increase in sulphate content, and the increase in the grinding time and the amount of substituted FA increased the compressive strength values. It was observed that weight loss increased with increasing sulphate content and decreased with the addition of FA with a high Blaine fineness. It was determined that as the Blaine fineness value increased, the sulphate content, FA substitution amount, and ultrasonic pulse speed decreased. This study was carried out to determine the effects of fly ash used at different fineness and replacement ratios on the performance and strength of concrete after exposure to external influences such as sulphate. The use of fly ash instead of cement will reduce the use of waste materials and natural resources and prevent environmental pollution. The cost of cement and concrete will be reduced.

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Section: Resultsmentioning

confidence: 99%

Effects of Ultrafine Fly Ash against Sulphate Reaction in Concrete Structures

Demir Şahin,

Eker

2024

Materials

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“…This article investigates three workability range (0 mm, 100 mm and 200 mm) and seven mixture groups. The groups are all optimized in a previous researches [2] , [3] , [4] , [5] . The data presented here examined the mixture ingredients of fly ash, cement, silica fume, lime and water reducers.…”

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

“…The detailed of the dataset presented here can be found in [1] . Additionally, the existing models proposed in previous studies for mortars and cement paste [2] , [3] , [4] , [5] , [6] , [7] were used to check the applicability in controlled low strength applications. The regression analysis of test data for 1512 samples were used to predict the effects of mixture ingredients in those applications to exhibit novel mixture design methods ( Fig.…”

Section: Datamentioning

confidence: 99%

Data for the physical and mechanical properties of high volume fly ash cement paste composites

Aydın

Arel

2018

Data in Brief

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The data presented herein are compiled of the research summary of “Characterization of High-Volume Fly-Ash Cement Paste for Sustainable Construction Application” (Aydin and Arel, 2017) [1]. This data article provides general information about the ASTM Class C and Class F fly ash cement paste composites composed of silica fume, lime, water reducing admixtures in three different level of workability (0 mm, 100 mm and 200 mm). The dataset here also helps the readers to understand the links with the basic properties of the ingredients, for example, how can porosity be predicted based on the mixture design? how can the strength of the material be linked with the basic strengths of the constituent ingredients?.

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“…Bu kapsamda yapılan çalışmada uçucu kül kullanımının yanı sıra inceliğinin de beton yapısının boşluk özelliği üzerinde olumlu etki yarattığı yapılan deney sonuçları ile belirlenmiş ve literatürle sonuçlar karşılaştırılmıştır. Aydın ve Balkis [72] çalışmalarında çimento yerine % 20, % 40, % 60 ve % 100 oranlarında uçucu kül kullanımı ile üretilen 50, 150 ve 250 mm çökme değerlerine sahip betonların ultrasonik darbe hızı değerlerini belirlemişler. Elde ettikleri sonuçlara göre çimento yerine uçucu kül eklemenin yapının sağlamlığını ve dayanımını arttırıcı C-S-H yapısının oluşmasına katkı sağladığını belirtmişler.…”

Section: Bulgular Ve Tartışmaunclassified

Effect of Fly Ash Fi̇neness on Sulfate Resistance

Eker

Şahin

Çullu

2022

Adıyaman Üniversitesi Mühendislik Bilimleri Dergisi

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Sulphate corrosion occurs due to a chemical reaction between the hydration of cement, which is a concrete compound, and sulphate ions, resulting in deterioration in concrete. Pozzuolanas such as fly ash are used instead of cement to reduce or minimize damage caused by sulphate on concrete. This study uses fly ash tailings from Afsin Elbistan thermal power plant, which has a component close to cement instead of cement, which is one of the main components of concrete. Examples of different fineness obtained by grinding the fly ash (FA) in the ball mill for 0, 10 and 20 minutes were prepared with a FA substitution rate of 10%, creating examples of fly ash-added concrete. These examples were then exposed to a 10% and 5% additive sulphate solution and tested for compressive strength and ultrasonic pulse velocity measurement tests to investigate the effect of concrete samples on sulphate resistance. According to the results obtained, the compressive strength values of concrete samples exposed to a solution of 5% and 10% sulphate have been observed, depending on the fly ash grinding time. It has been found that the concrete samples added have reduced compressive strength by increasing the amount of sulphate solution and have a higher compressive strength value than the reference sample. However, weight losses have been reduced as the grinding time increases. It has also been determined that ultrasonic pulse velocity values have increased as a result of the increase in the fineness of the grinding and the fineness of the flying ash.

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Preliminary Study on the Durability Properties of High-Volume Fly Ash Mortar Composites

Cited by 13 publications

References 25 publications

Effects of Ultrafine Fly Ash against Sulphate Reaction in Concrete Structures

Effects of Ultrafine Fly Ash against Sulphate Reaction in Concrete Structures

Data for the physical and mechanical properties of high volume fly ash cement paste composites

Effect of Fly Ash Fi̇neness on Sulfate Resistance

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