Effect of Superplasticizer on Strength and Durability of Rice Husk Ash Concrete

Kanthe, Vishvanath N.

doi:10.5829/ijee.2021.12.03.04

Cited by 12 publications

(5 citation statements)

References 20 publications

(23 reference statements)

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“…Additionally, fly ash reacts with harmful products formed from hydration, eliminating these products and creating a concrete structure that is more resistant to sulphate damage. In addition, by producing more durable concrete with fly ash additives, mass losses that may occur in the structure of concrete are minimized [ 77 ]. Rozario et al [ 78 ] prepared concrete samples using fly ash at 10%, 15%, 20%, and 25% in M20, M30, M40, and M50 coded concrete samples with different grain sizes.…”

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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“…Binici vd., [69] ise çalışmalarında silis dumanı, yüksek fırın cürufu ve uçucu kül kullanarak hazırladıkları betonları % 10 Na2SO4 çözeltisinde 60 günlük süre zarfında bekletmeye bırakmışlardır. Bu sürenin sonunda katkılı beton numunelerin kütle değişimi [70,71]. Corral-Higuera vd., [71] çalışmasında % 10 silis dumanı ve % 30 uçucu kül katkılısının her biri ile geri dönüşüm agregası kullanılarak hazırlanan beton örnekleri % 3.5 sodyum sülfat çözeltisine maruz bırakmışlar.…”

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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“…Recycling on a broad scale can minimize natural aggregate consumption [3][4][5] and contribute to environmental preservation [6]. Different types of waste material, like rice husk ash, quarry dust, macro fly ash, guinea corn husk ash, and oak bark ash [7][8][9], are used to *Corresponding Author Email: nsmasne@gmail.com (N. Masne) manufacture concrete for pavement and structural applications [10][11][12]. It is capable of resolving not just the environmental protection issue, but also the requirement for a sustainable society through solid waste management.…”

Section: Introductionmentioning

confidence: 99%

Effect of Wastewater Curing and Elevated Temperature on Recycled Concrete Aggregates from Construction and Demolition Wastes

Masne

Suryawanshi

2023

IJEE

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In this study, natural coarse aggregates were replaced with coarse recycled concrete aggregate (RCA) in 0 %, 50 %, and 100 % extracted from construction and demolition wastes. Their recycling could lead to a greener resolution for preserving the environment and paving the way for sustainability through solid waste management. The compressive strength of 0 %, 50 % and 100 % RCA at 365 days was reduced by 3.97 %, 4.88 %, 6.81 %, respectively, compared to the compressive strength at 28 days. Tensile strength at 365 days was reduced by 4.31 %, 6.50 % and 9.83 % compared to tensile strength at 28 days. There was no discernible effect of water type on the strength properties of concrete. Compared to other combinations, 100 % RCA concrete experiences a greater percentage of weight loss owing to evaporation of free water. When temperature was elevated, the concrete matrix expands and deep cracks were observed on the concrete surface. The overall performance of recycled aggregate concrete was not much influenced by the use of such aggregates, so these findings will add a new achievement to a sustainable construction through solid waste management.

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Effect of Superplasticizer on Strength and Durability of Rice Husk Ash Concrete

Cited by 12 publications

References 20 publications

Effects of Ultrafine Fly Ash against Sulphate Reaction in Concrete Structures

Effects of Ultrafine Fly Ash against Sulphate Reaction in Concrete Structures

Effect of Fly Ash Fi̇neness on Sulfate Resistance

Effect of Wastewater Curing and Elevated Temperature on Recycled Concrete Aggregates from Construction and Demolition Wastes

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