Impact on cementitious materials on high strength concrete–A review

Ravitheja, A.; Kumar, G. Pavan; Anjaneyulu, C. Madhu

doi:10.1016/j.matpr.2020.03.659

Cited by 5 publications

(5 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus, the Trail Mix TM9, featuring 10% metakaolin and 10% silica fume, emerged as the ideal high-strength mix. From the results obtained after testing it is clear that with the increase in the content of the silica fume and metakaolin, as both Supplementary cementitious materials [15] are pozzolanic in nature and additional calcium silicate hydrate gel [16]. generated by these materials is responsible for the enhanced compressive strength of concrete mix.…”

Section: Compressive Strength Of High Strength Concretementioning

confidence: 99%

Influence of substituting aggregates on the characteristics of high-strength concrete

Mahajan,

Sharma

2024

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

High-strength concrete (HSC) is a specialized form of concrete that possesses enhanced compressive strength compared to conventional concretes. In the initial phase of the experimental study, silica fume and metakaolin were utilized as additional supplementary cementitious materials in various percentages ranging from 6% to 12% for making different trails to obtain the concrete mix with high strength. Test results indicated that trail mix having 10% silica fume and metakaolin gave the desired strength. The second phase of the study incorporates the utilization of crushed granite coarse aggregates at varying replacement ratio ranging from 0 to 100%, serving as a substitute for natural aggregates. Test results demonstrated the better quality of crushed granite aggregates in contrast with locally available natural aggregates, enhanced strength properties of concrete including compressive strength, split tensile strength, Flexural strength, etc at each replacement percentage, thus suggesting the use of crushed granite a favorable option for obtaining high strength concrete.

show abstract

Section: Compressive Strength Of High Strength Concretementioning

confidence: 99%

Influence of substituting aggregates on the characteristics of high-strength concrete

Mahajan,

Sharma

2024

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

show abstract

“…Nowadays, the use of several techniques, admixtures (mineral and chemical), alternate fillers, and fibers, is increasing to develop cost‐effective, durable, and sustainable concrete structures 1–4 . In recent years, the use of high‐strength concrete in infrastructure and building projects has increased for several advantages such as reduction in cross‐section and dead load of structures 5,6 . High‐strength concrete obviously contains higher cement content to achieve the desired strength 5 .…”

Section: Introductionmentioning

confidence: 99%

“…[1][2][3][4] In recent years, the use of high-strength concrete in infrastructure and building projects has increased for several advantages such as reduction in cross-section and dead load of structures. 5,6 High-strength concrete obviously contains higher cement content to achieve the desired strength. 5 It is a known fact that cement hydration is an exothermic reaction and a significant amount of heat is liberated.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Impact of slag‐fly ash cementitious system on thermal controls and durability of high‐strength mass concrete

Mokal,

Mandal,

Nayak

et al. 2023

Structural Concrete

View full text Add to dashboard Cite

The rise in temperature due to the heat of hydration in the high‐strength mass concrete poses serious issues such as thermal cracking and delayed ettringite formation. The present experimental investigation is to optimize the proportions of SCMs like fly ash (FA) and ground granulated blast‐furnace slag (GGBS) for the same grade of high‐strength mass concrete with a focus on controlling the peak temperature rise and improving sustainability. For this purpose, one 100% ordinary Portland cement (OPC)‐based sample (T1) and five SCMs‐based samples viz. T2, T3, T4, T5, and T6 in which OPC was replaced by 20% FA, 35% FA, 50% GGBS, 70% GGBS, and 33%FA + 33% GGBS, respectively, were cast in the insulated blocks having one cubic meter volume. Analyzing critically, it is observed that for the same grade of concrete, the right blend of SCMs greatly reduces the peak core temperature (~33.2% and ~ 39.4% for T5 and T6 samples, respectively) than the sample prepared with 100% OPC. This is due to the reduction in the total heat of hydration in the SCMs‐based system than that of the OPC‐based system at early age. The amount of hydration products formed at early age varies for different percentages of SCMs, which is investigated by X‐ray diffraction (XRD), Fourier‐transform infrared spectroscopy (FTIR), and Field emission scanning electron microscopy (FESEM) analyses. Additionally, compressive strength analysis reveals that all the samples achieved almost similar strength (71.4, 74.6, 73.5, 71.5, 69.2, and 68.2 MPa, respectively, for T1 to T6 samples) at 56 days. Moreover, the rapid chloride permeability test (RCPT) values of the T2 to T5 samples are measured to be 597, 461, 672, 584, and 621 coulombs; while, the same is measured to be 2637, coulombs for the T1 sample, indicating higher durability of SCMs‐based samples. Finally, based on the analyses, a plausible model has been presented to explain the phenomenon, and industrial viability analysis is done to adjudge its suitability for an onsite application.

show abstract

“…Over the last few decades, several works have devoted to the advancement of technologies related to the increase in the concrete strength [2,7,31,39]. These research efforts led to the development of high-strength concrete (HSC), in which the compressive strength of the material is higher than 50 MPa.…”

Section: Introductionmentioning

confidence: 99%

2D Crack Propagation in High-Strength Concrete Using Multiscale Modeling

Gimenes

Rodrigues

Maedo

et al. 2020

Multiscale Sci. Eng.

View full text Add to dashboard Cite

In this work a concurrent multiscale (macro and mesoscale) approach for high-strength concrete (HSC) is proposed for seeking to better understand the influence of coarse aggregate type, shape, and size distribution as well as the interfacial transition zone (ITZ) effects on the fracture mechanical responses. A linear elastic model with homogenized elastic properties is used for the macroscale, while a three-phase material composed of coarse aggregates, mortar matrix and the ITZ equipped with nonlinear behavior models are assumed for the mesoscopic level. To geometrically represent and gain insights into effects of coarse aggregates, two polygonal shapes are assumed: irregular quadrilateral and regular octagonal forms, which are used separated and randomly generated from a given grading curve and placed in the mesoscale region using the "take-and-place" method. A mesh fragmentation technique is used to explicitly represent the crack propagation process by considering the individual behavior of each phase as well as their mutual interactions. The non-matching macro and mesoscopic meshes are attached based on the use of coupling finite elements in the context of the rigid coupling scheme to adequately guarantee the continuity of displacement between both scales. Numerical analyses of dog-bone shape specimens under tensile load and three-point bending beams were performed. The responses obtained numerically show a good agreement with experimental ones found in literature demonstrating how the proposed approach is efficient, robust and useful for modeling crack propagation in HSC.

show abstract

Impact on cementitious materials on high strength concrete–A review

Cited by 5 publications

References 2 publications

Influence of substituting aggregates on the characteristics of high-strength concrete

Influence of substituting aggregates on the characteristics of high-strength concrete

Impact of slag‐fly ash cementitious system on thermal controls and durability of high‐strength mass concrete

2D Crack Propagation in High-Strength Concrete Using Multiscale Modeling

Contact Info

Product

Resources

About