Influence of Ultrafine Natural Steatite Powder on Setting Time and Strength Development of Cement

Sudalaimani, K.; Shanmugasundaram, M.

doi:10.1155/2014/532746

Cited by 21 publications

(20 citation statements)

References 12 publications

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“…The strength gain is due to the presence of right proportion of M-S-and C-S-H [20]. The concrete attains its strength through the UFNSP; the reason behind this is the presence of Mg and reduced particle size of UFNSP, which facilitates the intrusion of particle in cement matrix [11][12][13][14]. The higher hydration rate is the main cause of early age strength attainment [21].…”

Section: Compressive Strength On Hardened Concrete At Variousmentioning

confidence: 99%

“…It is a proven durable raw material in refractory industry. In 2 Advances in Materials Science and Engineering terms of steatite the grinded powder was already proved to be good replacement to cement until 15% [11,12]. Durability and strength of concrete increase with replacement of steatite powder to certain limit [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

“…In 2 Advances in Materials Science and Engineering terms of steatite the grinded powder was already proved to be good replacement to cement until 15% [11,12]. Durability and strength of concrete increase with replacement of steatite powder to certain limit [12][13][14]. The phase of steatite is crystalline which belongs to magnesium metasilicate from talc mineral based on the following reaction [15]:…”

Section: Introductionmentioning

confidence: 99%

“…Generally the earlier studies show that the M-S-H gel has amorphous phase [11,12]. The magnesium-rich binders can lead to low pH binding system which has wide range of applications in adverse concreting condition, and also this magnesium richness leads to early strength development and durability [16].…”

Section: Introductionmentioning

confidence: 99%

“…Table 1. The UFNSP of less than 5 microns similar to that of earlier studies [11][12][13][14] is used and the physical and chemical properties were presented in Table 1. UFNSP was used as pozzolanic replacement in this study.…”

Section: Introductionmentioning

confidence: 99%

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An Investigation on Self-Compacting Concrete Using Ultrafine Natural Steatite Powder as Replacement to Cement

Kumar¹,

Sudalaimani²,

Shanmugasundaram³

2017

Advances in Materials Science and Engineering

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An experimental investigation was made on flow properties and compressive strength of self-compacting concrete (SCC) with ultrafine natural steatite powder (UFNSP) as replacement to cement. The tests were conducted on specimens with 5%, 10%, 15%, 20%, and 25% of replacement of UFNSP to the weight of cement and compared to the control specimens. The flow properties of all specimens were tested and checked for their limit with the existing guidelines. The compressive strength test was done on all specimens for strength of 7 days, 14 days, 28 days, and 56 days. The hardened samples were tested for their microstructural behavior and the elements Mg, Ca, and Si were mapped. Through mapping, the formations of M-S-H along with C-S-H are observed. The results show that the addition of UFNSP influences the flow property, by reducing the flow, and increases the compressive strength till 20% replacement. Further the addition of UFNSP increases the denseness of microstructure of the specimens thus resulting in the strength increment.

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Section: Compressive Strength On Hardened Concrete At Variousmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

An Investigation on Self-Compacting Concrete Using Ultrafine Natural Steatite Powder as Replacement to Cement

Kumar¹,

Sudalaimani²,

Shanmugasundaram³

2017

Advances in Materials Science and Engineering

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Evaluation of CO₂ attack in wellbore class G cement: influence of epoxy resins, composites and minerals as additives

et al. 2019

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Carbon dioxide (CO 2 ) injection into geological formations is pointed out as one of the most effective alternatives to reduce anthropogenic CO 2 emissions to the atmosphere. To promote long-term CO 2 storage, wellbore integrity is a critical issue to be considered. Portland cement is commonly used for cementing wells, and considered chemically unstable in CO 2 -rich media. In this context, this study investigated the CO 2 chemical resistance of class G Portland cement modified with novel additives (epoxy resins, epoxy-clay composites, and clay minerals) at 1 and 2.5 wt% contents. Reaction times of 7 and 30 days of exposure to CO 2 in supercritical conditions were evaluated. Samples were characterized by mechanical compression tests and phenolphthalein indicator as well as field emission scanning electron microscopy in order to determine the depth of carbonation in cement. Our results indicate that although there is slight reduction in the initial compressive strength, the addition of tested additives to cement paste offers improvements in terms of chemical resistance. The optimum content of different additives was 1 wt% in order to maintain compressive strength properties and improve chemical resistance to CO 2 . The best result was achieved with an epoxy resin blend as an additive, decreasing carbonation by up to 60% (7 days of exposure to CO 2 ) and 52% (30 days of exposure to CO 2 ).

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A study on compressive strength of ultrafine graded fly ash replaced concrete and machine learning approaches in its strength prediction

Suprakash

Karthiyaini

Shanmugasundaram

2022

Structural Concrete

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Ultrafine graded fly ash (UFGFA) is a well-graded pozzolanic material among silica-rich reactive pozzolans that contributes to the improvement of the early pozzolanic reactivity of cement paste, mortar, and concrete at early ages. The purpose of this article is to demonstrate the effect of UFGFA on the development of compressive strength in M20, M25, and M30 grade concretes with a partial replacement of cement ranging from 0% to 40% by weight at various water-binder (W/B) ratios of 0.43-0.53. Compressive strength development was examined at ages 7, 14, 28, and 56 days. Additionally, three machine learning (ML) models (linear regression, ANN, and GEP) were used to predict the compressive strength of the concretes using different predictive classifications.According to the investigations, experimental studies indicate that a lower W/B ratio and a minimum amount of UFGFA replacement result in an increase in strength at an early age of 7 days. At 14, 28, and 56 days, higher strength results were obtained when 15%-30% UFGFA was replaced with a W/B ratio less than 0.5, whereas a reduction in strength was observed when more than 30% UFGFA was replaced with cement and with W/B ratio greater than 0.5. All machine learning models produced good predictions of compressive strength, with LR models having least performance and ANN has the more accurate fit. ANN models outperformed the other three machine learning models, but GEP models performed identically near to the ANN model, with expressions generated, that can be used for further development of predictive model.artificial neural net, fly ash, genetic algorithm, linear regression, pozzolan, ultrafine graded fly ash Discussion on this paper must be submitted within two months of the print publication. The discussion will then be published in print, along with the authors' closure, if any, approximately nine months after the print publication.

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Influence of Ultrafine Natural Steatite Powder on Setting Time and Strength Development of Cement

Cited by 21 publications

References 12 publications

An Investigation on Self-Compacting Concrete Using Ultrafine Natural Steatite Powder as Replacement to Cement

An Investigation on Self-Compacting Concrete Using Ultrafine Natural Steatite Powder as Replacement to Cement

Evaluation of CO₂ attack in wellbore class G cement: influence of epoxy resins, composites and minerals as additives

A study on compressive strength of ultrafine graded fly ash replaced concrete and machine learning approaches in its strength prediction

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Influence of Ultrafine Natural Steatite Powder on Setting Time and Strength Development of Cement

Cited by 21 publications

References 12 publications

An Investigation on Self-Compacting Concrete Using Ultrafine Natural Steatite Powder as Replacement to Cement

An Investigation on Self-Compacting Concrete Using Ultrafine Natural Steatite Powder as Replacement to Cement

Evaluation of CO2 attack in wellbore class G cement: influence of epoxy resins, composites and minerals as additives

A study on compressive strength of ultrafine graded fly ash replaced concrete and machine learning approaches in its strength prediction

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Evaluation of CO₂ attack in wellbore class G cement: influence of epoxy resins, composites and minerals as additives