Fresh State and Mechanical Properties of Self Compacting Concrete Incorporating High Volume Fly Ash

Mohamad, Noridah; Zulaika, M. S.; Samad, Abdul; Goh, Wan Inn; Hadipramana, Josef; Wirdawati, A.

doi:10.1051/matecconf/20164701001

Cited by 6 publications

(4 citation statements)

References 3 publications

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“…therefore, as indicated in Table 2, it has been proven that excessively substituting cement with y ash will gradually decrease the compression strength of SCC because pozzolanic material cause concrete to gain strength at a rate that is slower than cementitious materials. The similar in uence of high substitution of cement by y ash on SCC compressive strength is also additionally found in Mohamad et al (2015)'s study .According to the study's control mix compressive strength, after 60% cement substitution by y ash, the strength steadily decreased from more than 50.0 MPa to less than 30.0 MPa (Mohamad et al, 2015). A similar pattern of declining SCC compressive strength with a rising proportion of cement replacement by y ash has also been demonstrated by Dasarathy et al (2018).…”

Section: Using the Trial-and-error Methods In MIX Designssupporting

confidence: 71%

High-strength Self-compacting Concrete incorporating high dosage of Fly ash and Quarry dust

Lim,

Mannan,

Fakhri

et al. 2023

Preprint

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Locally, conventional concrete is still created utilizing river sand and crushed stone as filer materials. The massive quarry dust by-product remain untapped in the production of concrete. The coal-fired power station produce significant quantities of Type F fly ash. Self-compacting concrete (SCC) provides many advantages for creating high-quality concrete. Consequently, the main objective of this research is to create a mix design for high-strength SCC utilizing a binary blends , hybrid fibers and fine aggregates that meet both hardened and fresh concrete characteristics. The study is conducted in amendment of w/b ratio, superplasticizer, proportion of fine aggregate to coarse aggregate, optimumal cement replacing by fly ash, dosage of low macro fibre and micro fibre. Mix-50c-X is the best mix design that was produced. The mix quantity for 1m3 concrete was 315 kg Class F fly ash , 315 kg OPC , 630 kg quarry dust, 508 kg river sand, 400 kg coarse aggregate , 0.7% superplasticizer,0.32 % w/b , 0.10% macro fiber, and 0.01% micro fiber. This SCC mixture showed fresh characteristics as well as compressive strengths of more than 22 MPa and 62 MPa after 1 day and 28 days, respectively. The results of high-strength SCC demonstrated the enormous potential for the local construction, especially precast product.

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Section: Using the Trial-and-error Methods In MIX Designssupporting

confidence: 71%

High-strength Self-compacting Concrete incorporating high dosage of Fly ash and Quarry dust

Lim,

Mannan,

Fakhri

et al. 2023

Preprint

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“…However, increasing the fly ash content up to 60% by wt. of cement lower the compressive strength at 7, 28 and 56 days [4]. In another study it was also found that the use of fly ash with percentage of 30% by wt.…”

Section: Introductionmentioning

confidence: 81%

Effects of different size of fly ash as cement replacement on self-compacting concrete properties

Rantung

Supit

Nicolaas

2019

JoSEPS

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This paper aims to investigate experimentally the influence of replacing cement with different fineness of fly ash based on flowability, passing ability, compressive strength, tensile strength (splitting). Concretes with 15% fly ash (passed a number 100 sieve) and fine fly ash (passed a number 200 sieve) as cement replacement were cast and tested at 7, 14, 28 days after water curing. A superplasticizer in the form of viscocrete 3115 N was constantly used for each concrete mixtures as much as 1% by weight of cement. The results show that the use of fly ash does not significantly increased the compressive strength and tensile strength of SCC mixtures. However, concrete with 15% fine fly ash its self and combined 7.5% fly ash with 7.5% fine fly ash show better flowability and passing ability when compared to concrete with cement only indicating the performance of using smaller particle sizes of fly ash could lead better properties of SCC that can be potentially used for building construction application.

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“…It is found that 5% of fibers improved the tensile strength of composite in comparison with the pure HDPE. It is also found that the addition of fibers decreased the thermal stability of composites but increased its thermal crystallization temperature [10]. Replacement of 40% fly ash in the self-compacting concrete mixture had resulted with optimum workability, compressive strength and modulus of elasticity of the mixture with the highest compressive strength achieved was 27.2 MPa and MOE 31 GPa [11].…”

Section: Introductionmentioning

confidence: 92%

Effects of Incorporating Banana Skin Powder (BSP) and Palm Oil Fuel Ash (POFA) on Mechanical Properties of Lightweight Foamed Concrete

Mohamad

Samad²,

Lakhiar³

et al. 2018

IJIE

Self Cite

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This paper presents the effects of agricultural wastes on the mechanical properties of lightweight foamed concrete, LFC. The agricultural wastes utilized in this research are banana skin powder (BSP) and palm oil fuel ash (POFA) as cement and sand replacement, respectively. Physical and chemical tests were conducted to determine the chemical composition and particle size of both BSP and POFA. These chemical and physical properties of the raw materials are important in understanding the effects they have on the mechanical properties of lightweight foamed concrete incorporating BSP and POFA, which is designated as LFC-BSP-POFA. Cube, cylindrical, and prism specimens of LFC-BSP-POFA with density of 1800kg/m³ were cast and tested to determine its compressive strength, tensile strength, modulus of elasticity and flexural strength. Twelve (12) LFC-BSP-POFA mixtures were prepared with content of BSP as cement replacement of 0%, 0.2%, 0.4%, 0.6%, 0.8% and 1% by weight. For each mixture, the content of POFA as sand replacement are 0% and 15%. It was found that BSP and POFA each contain 55.98% and 51.83% silicon dioxide, and 2.71% and 2.32% aluminum oxide, respectively. The particle size for these two materials as obtained from PSA test showed that both materials are considered as fine particles, which is within 0.1µm to 250 µm. These chemical composition and particle size of BSP and POFA contribute to the pozzolanic reaction in LFC. This is proven by the results obtained from the mechanical properties tests which show that the incorporation of both BSP and POFA as cement and sand replacement have some significant effects on the mechanical properties of LFC. The increase percentage of BSP and POFA incorporated in LFC had shown slight increment in its mechanical properties.

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Fresh State and Mechanical Properties of Self Compacting Concrete Incorporating High Volume Fly Ash

Cited by 6 publications

References 3 publications

High-strength Self-compacting Concrete incorporating high dosage of Fly ash and Quarry dust

High-strength Self-compacting Concrete incorporating high dosage of Fly ash and Quarry dust

Effects of different size of fly ash as cement replacement on self-compacting concrete properties

Effects of Incorporating Banana Skin Powder (BSP) and Palm Oil Fuel Ash (POFA) on Mechanical Properties of Lightweight Foamed Concrete

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