Chloride Penetration Resistance and Behaviour Under Acid Attack of Metakaolin and Silica Fume Based Composite Fiber (Glass and Polypropylene) Reinforced High Performance Concrete

Patil, Sachin; Somasekharaiah, H. M.; H, Sudarsana Rao

doi:10.14445/22315381/ijett-v69i4p222

Cited by 7 publications

(2 citation statements)

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“…Rao et al [13] studied the deterioration and the relative sulphate resistance of HPC in severe sulphate environments and suggested using Fly ash (FA) by partially replacing natural pozzolana for enhanced performance. Present authors also have investigated the effect of fly ash, metakaolin, and silica fume based composite fiber-reinforced HPC on strength and durability properties and concluded the viability of using fly ash, metakaolin, silica fume, and composite fibers in CFRHPC production for enhanced strength and durability properties [14][15][16]. The widespread application of FA and MK in the construction industry is the result of extensive investigations on the use of FA and MK in concrete during the past two decades [17][18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 88%

Behaviour of Fly ash and Metakaolin Based Composite Fiber (Glass and Polypropylene) Reinforced High Performance Concrete under Acid Attack

Patil¹,

Somasekharaiah²,

Rao³

et al. 2021

cea

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Improvements in concrete properties have been achieved by researchers with the invention of High-Performance-Concrete (HPC), which can now be improvised by using a combination of mineral admixtures. HPC is usually more brittle which can be made ductile by modifying its composition by adding fibers in the design mix, which led to the development of fiber-reinforced concrete. High-Performance-Concrete made with glass fibers and polypropylene fibers is regarded as Composite Fibre (Glass and polypropylene) Reinforced High Performance Concrete (CFRHPC). The development of cost-effective state-of-the-art procedures for producing, evaluating, and designing with CFRHPC will enhance the performance for each performance characteristic and can be reliably achieved in the field. This investigation evaluates the effect of cement being partially replaced by combined fly ash and metakaolin with glass fibers and polypropylene fibers as an addition to produce high-performance concrete with composite fiber for resistance to hydrochloric acid, magnesium sulphate, and sulphuric acid attack for 30, 60, and 90 days. The water to binder ratios (W/B) of 0.275, 0.300, 0.325, and 0.350 and an aggregate to binder ratio (A/B) of 1.75 were adopted. Fly ash and metakaolin were replaced in the range from 0% to 15% each, glass fibers were added in volume percentages from 0% to 1%, and polypropylene fibers were kept constant at 0.25%. The combined effect of fly ash and metakaolin at 5% each as replacement of cement and the addition of composite fiber dosage of glass fiber=1% and polypropylene fibers=0.25% for W/B of 0.275 was found to be the optimum combination to obtain maximum acid attack resistance, which was also justified by SEM, EDX, and XRD analysis done in this investigation. CFRHPC production minimizes enormous cement production and safeguards the environment from pollution and concrete from environmental pollution throughout its service life.

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Section: Introductionmentioning

confidence: 88%

Behaviour of Fly ash and Metakaolin Based Composite Fiber (Glass and Polypropylene) Reinforced High Performance Concrete under Acid Attack

Patil¹,

Somasekharaiah²,

Rao³

et al. 2021

cea

Self Cite

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“…The penetration of chloride into concrete structures can lead to corrosion and reduction in strength of rebar, resulting in early repair of the structure [49]. Therefore, the chloride ion penetration resistance of concrete is an important factor for evaluating the durability, and in general, the easier it is to penetrate chloride ions, the higher the total charge passed is measured.…”

Section: Chloride Ion Penetration Resistance Of Waste Fiber-reinforce...mentioning

confidence: 99%

A Study on the Applicability of Waste Glass Wool and Waste Mineral Wool as Fiber Reinforcement

Lim,

Jang,

Kim

et al. 2023

Applied Sciences

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Recently, the handling of waste industrial resources has become an issue, and the importance of sustainable resources has increased. Among these waste industrial materials are glass wool and mineral wool, which are fibrous materials used as insulation materials with characteristics such as sound absorption, insulation, and non-flammability. However, after their service life, glass wool and mineral wool used for insulation are generally buried or incinerated, causing problems such as air and soil contamination. This research was conducted to examine the applicability of waste glass wool and mineral wool obtained from expired insulation as fiber reinforcement in cement concrete. The research aimed to evaluate the fresh concrete properties, strength properties, and durability properties by adding waste glass wool and waste mineral wool up to 0.5–2.0% of the cement weight. Regarding the slump and air content of fresh concrete, the results showed that the addition of waste fibers within this range did not significantly affect the air content. However, the slump decreased as the addition amount increased due to the high absorption, which is a characteristic of the fibers. In addition, the evaluation of strength revealed that the incorporation of fibers decreased the compressive strength compared to the reference concrete. However, the tensile strength increased due to the load-supporting function of the waste fibers. In the evaluation of freezing–thawing resistance and chloride ion penetration resistance, it was confirmed that the freezing–thawing resistance improved in all cases where waste glass wool was added. The chloride ion penetration resistance was found to be similar to that of the reference concrete. However, in the case of waste mineral wool, it was observed that an addition rate of more than 2.0% of fibers was required to ensure freezing–thawing resistance. As the addition rate increased, the total charge passed (permeability) increased significantly, leading to a decrease in chloride ion penetration resistance.

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An overview of mechanical, permeability, and thermal properties of silica fume concrete using bibliographic survey and building information modelling

Shelote

Bala

Gupta

2023

Construction and Building Materials

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Chloride Penetration Resistance and Behaviour Under Acid Attack of Metakaolin and Silica Fume Based Composite Fiber (Glass and Polypropylene) Reinforced High Performance Concrete

Cited by 7 publications

References 0 publications

Behaviour of Fly ash and Metakaolin Based Composite Fiber (Glass and Polypropylene) Reinforced High Performance Concrete under Acid Attack

Behaviour of Fly ash and Metakaolin Based Composite Fiber (Glass and Polypropylene) Reinforced High Performance Concrete under Acid Attack

A Study on the Applicability of Waste Glass Wool and Waste Mineral Wool as Fiber Reinforcement

An overview of mechanical, permeability, and thermal properties of silica fume concrete using bibliographic survey and building information modelling

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