Strength Development of High-Performance Concrete using Nanosilica

Eddhie, Jonbi

doi:10.14716/ijtech.v8i4.9485

Cited by 9 publications

(6 citation statements)

References 2 publications

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“…The use of ordinary Portland cement (OPC) is limited to 500 kg/m 3 to meet the shrinkage factor closest to one (American Concrete Institute, 1992). The mechanical properties and durability of high-performance concrete can be improved with the use of nanosilica (Eddhie, 2017). The silica fume used was 8% by weight of the cement.…”

Section: Methodsmentioning

confidence: 99%

Rheological Model of Concrete Shrinkage

Niken¹,

Tjahjono²,

Supartono³

2021

IJTech

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This paper discusses the shrinkage rheological model of high-performance concrete with a compressive strength of 60 MPa. This is based on experimental research in Indonesia. Three specimens measuring 150 mm × 150 mm × 600 mm were used. Specimens were placed in a conditioned room with a temperature of 28 3oC and relative humidity of 72±5%. Observations were conducted over 7-800 days using an embedded vibrating wire strain gauge for each specimen. As a result, the shrinkage rheological model was single or multi Kelvin-Voigt in series with timedependent disturber flow in it. Disturber flow depends on product hydration growth, weather, pore number, size, and distribution. The model agrees with experimental results. Moreover, it also fits the results using high strength concrete column and high strength self -compacting concrete cylinder.

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Section: Methodsmentioning

confidence: 99%

Rheological Model of Concrete Shrinkage

Niken¹,

Tjahjono²,

Supartono³

2021

IJTech

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“…For example, Yadav et al (2018) that have conducted research on high range replacement of normal aggregates with recycled aggregates. Likewise, Eddhie (2017) developed mathematical equations that account for the relationship between the content of nanosilica and the mechanical properties of concrete so it can be applied to any concrete mixture. The improvement of concrete mixtures can also 496 Normal Concrete Mix Design based on the Isoresponse of Slump as a Function of Specific Surface Area of Aggregate and Cement Paste-Aggregate Ratio be done by finding the influence of various variables and their correlation that affect the properties of fresh and hardened concrete.…”

Section: Introductionmentioning

confidence: 99%

Normal Concrete Mix Design based on the Isoresponse of Slump as a Function of Specific Surface Area of Aggregate and Cement Paste-Aggregate Ratio

Ulhaq¹,

Andayani²

2021

IJTech

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Many methods of normal concrete mix design produce the same proportion of cement and water content of concrete for different specific surface area of aggregate. Therefore, they often produce inappropriate workability of fresh concrete in the first batch. In the end, several trial batch adjustments are required by increasing or decreasing cement paste for reaching the required slump. This research aims to find out the correlation between specific surface area of aggregate and cement paste-aggregate ratio (C/A) to slump in a constant water-cement ratio (W/C) in normal concrete. This correlation will be used as an alternative method of normal concrete mix design. First, the new fine aggregate was established by modifying natural fine aggregate gradation. Then, two reference mixtures with these natural and modified fine aggregates were designed based on SNI 03-2834-2000. From each of these mixtures, the water content was added and reduced at multiple of 10 kg/m 3 in a constant water-cement ratio until the measured slumps of samples had approached or reached 6 and 18 cm. Thus, different specific surface area of aggregate, cement paste-aggregate ratio, and slump could be known. Then, an isoresponse is developed to present the correlation between these variables. Finally, other mixtures are designed based on this isoresponse to validate it. The isoresponse is considered satisfactory if the measured slump of the validation mixtures does not deviate more than 2 cm of the required slump. The result shows that the measured slumps of validation mixtures had maximum deviations of 1 cm only. It means that the isoresponse of slump as a function of specific surface area of aggregate and cement paste-aggregate ratio can be used to predict the slump of a mixture and also as an alternative method of normal concrete mix design.

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“…Due to the weaknesses seen in the asphalt mixture properties, removing these weaknesses can surely be beneficial. Certainly, doing the tests and using appropriate materials as additives to the asphalt can be a good idea to improve its mechanical properties [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]. One of the main objectives of the Marshall test is to improve Marshall Resistance and to put the amount of Flow and other related parameters in a desired range.…”

Section: Introductionmentioning

confidence: 99%

Economical and Technical Study on the Effect of Carbon Fiber with High Strength on Hot Mix Asphalt (HMA)

Zarei

Akbarinia

Rahmani³

et al. 2020

EJSE

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In this article by adding different percentages of carbon fiber with high strength and doing the necessary Marshall tests, it was observed that the Marshall Resistance and its Flow increased. Due to their armed properties, the carbon fibers have a positive effect on Marshall Resistance. According to the results, in-creasing the percentage of fibers, reduces the resistance, so that the resistance of the sample containing 1.5% of carbon fiber is almost 32% more than the resistance of the sample without fiber. According to the results, the increased resistance compared to the previous researches and other fibers stems from the kind of fiber used in it and its high resistance. After increasing the fiber percentage to 3, a 12% decrease in the resistance was seen. On the other hand, by changing the percentage of the fibers added to the aggregates, the Flow will change, so that the sample containing 3% of fiber is almost 189% more Flow than the base sample. The economic analysis was used for a three-lane road. The results showed that economically speaking, due to their high price, these types of fibers are recommended to be used in restricted and optimal areas.

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Strength Development of High-Performance Concrete using Nanosilica

Cited by 9 publications

References 2 publications

Rheological Model of Concrete Shrinkage

Rheological Model of Concrete Shrinkage

Normal Concrete Mix Design based on the Isoresponse of Slump as a Function of Specific Surface Area of Aggregate and Cement Paste-Aggregate Ratio

Economical and Technical Study on the Effect of Carbon Fiber with High Strength on Hot Mix Asphalt (HMA)

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