A Study on Compressive Behavior of Ternary Blended Concrete Incorporating Alccofine

Reddy, A. Narender; Meena, T.

doi:10.1016/j.matpr.2018.02.102

Cited by 34 publications

(11 citation statements)

References 7 publications

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“…Alccofine is an ultra-fine material which is significantly superior to other mineral admixtures which are available in market [15][16][17][18][19][20][21][22][23][24][25][26][27]. In this research, the replacement of cement with alccofine was 25% for all mixes.…”

Section: Alccofinementioning

confidence: 93%

Development of high early strength in concrete incorporating alccofine and non-chloride accelerator

Reddy

Naqash

2019

SN Appl. Sci.

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Rapid repair and retrofit of existing infrastructures demand durable high early strength materials that not only deliver sufficient strength within a short time after placement but also significantly prolong the maintenance interval. This research paper presents the effects on the mechanical properties and durability of alccofine concrete of the addition of calcium nitrate as a non-chloride hardening accelerator (NCHA). Non-chloride accelerator with concentrations of 0.65%, 0.85% and 1.05% by weight of cement, was added to concrete mixes to test the effect on the properties of alccofine concrete which was in turn compared with the reference concrete without NCHA. With addition of accelerator, strength enhancements were observed at an early age due to rapid rate of hydration of C 3 A and C 3 S phases. Water absorption and sulphate resistance of alccofine concrete also improved with the non-chloride accelerator. A statistical tool was used to predict the experimental values of compressive strength of concrete. Response surface methodology was adopted to optimize the experimental data set in which regression equation was developed by relating response variable to input variable. This method helped to predict the experimental values within an acceptable error range. The predicted values were cross validated by employing coefficient of determination (R 2 ) and residual sum of squares (RSS) which showed a good fit. The results of this study showed that the addition of non-chloride hardening accelerator in alccofine concrete significantly improved the mechanical properties as well as durability.

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Section: Alccofinementioning

confidence: 93%

Development of high early strength in concrete incorporating alccofine and non-chloride accelerator

Reddy

Naqash

2019

SN Appl. Sci.

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“…This improvement can be attributed to the effect of nanosilica and microsilica fillings that have a large surface area which improves chemical reaction because of pozzolanic activity. Hence, additional C-S-H gel was formed for generating more force resulting in less deflection [34].…”

Section: Load Deflectionmentioning

confidence: 99%

Flexural Behavior Performance of Reinforced Concrete Slabs Mixed with Nano- and Microsilica

Kancharla

Maddumala

Prasanna

et al. 2021

Journal of Nanomaterials

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Present technology has been evaluated greatly over the past decades, where new particles are being designed and fabricated to fulfill specific needs. The field of nano- and micromaterials has prospered in many disciplines. It has been recently used in reinforced concrete in the production of high-strength, high-performance concrete. Microsilica (MS) and nanosilica (NS) particles have proven to be highly profitable to the concrete mix. Concrete has become denser with considerable improvement in their mechanical characteristics, particularly compressive strength. This proposed method includes a comparative study of the flexural bending behavior of conventional reinforced concrete (without MS or NS) slabs with other slabs. Each has various mixes of MS and NS particles incorporated into the concrete mix. The material content utilized in the slabs is kept constant by replacing a portion of the cement with an equivalent amount of either NS or MS particles or both. MS particles are altered from 0, 5, and 10% while NS particles are altered from 0, 0.5, and 1.0%. It cracks the widths and has higher final load-bearing capacity.

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“…This improvement can be referred to the filler action of nano silica and micro silica which have a large surface area which improves the chemical reaction due to the pozzolanic activity. Hence additional Calcium Silicate Hydrates C-S-H is formed generating more gel due to hydration resulting in increased strength [29][30][31][32][33][34][35]…”

Section: Compressive Strengthmentioning

confidence: 99%

Strength Properties of Nano and Micro Silica Mortar

Abo-alnour

wahbe

Mehanny

2020

The Egyptian International Journal of Engineering Sciences and

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A Study on Compressive Behavior of Ternary Blended Concrete Incorporating Alccofine

Cited by 34 publications

References 7 publications

Development of high early strength in concrete incorporating alccofine and non-chloride accelerator

Development of high early strength in concrete incorporating alccofine and non-chloride accelerator

Flexural Behavior Performance of Reinforced Concrete Slabs Mixed with Nano- and Microsilica

Strength Properties of Nano and Micro Silica Mortar

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