Fiber Type and Curing Environment Effects on the Mechanical Performance of UHPFRC Containing Zeolite

Bahmani, Hadi; Mostofinejad, Davood; Dadvar, Sayyed Ali

doi:10.1007/s40996-022-00911-z

Cited by 28 publications

(3 citation statements)

References 28 publications

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“…For this investigation, ACI 211 26 was employed as the main approach for producing standard concrete, as well as ACI 211-4R 27 and its appendices for high-strength concrete. The mixing design of HSC should be in line with the results of studies conducted in this field, [28][29][30][31] as well as the method of mixing HSC proposed in ACI 211-4R. 27 The studied mixtures are outlined in Table 3, which employed 3 levels of cement materials of 450, 500, and 550 kg/m 3 .…”

Section: Materials and MIX Designsmentioning

confidence: 99%

A high‐strength concrete resistant to elevated temperatures using steel slag aggregates

Hajiaghamemar

Mostofinejad

Bahmani

2022

Structural Concrete

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Section: Materials and MIX Designsmentioning

confidence: 99%

A high‐strength concrete resistant to elevated temperatures using steel slag aggregates

Hajiaghamemar

Mostofinejad

Bahmani

2022

Structural Concrete

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“…The advent of new construction materials and techniques has made the production of high-performance concrete feasible, achieved through the incorporation of silica fume additives, superplasticizers, and low w/cm ratios, resulting in better compaction and viscosity. High-performance concrete exhibits low permeability, which plays a crucial role in minimizing the ingress of contaminants like chloride, carbon dioxide, and humidity, known to initiate corrosion [11][12][13][14][15][16][17][18]. The increasing utilization of high-performance concrete in tall buildings, bridges, and structures exposed to harsh environments necessitates further research into its durability.…”

Section: Introductionmentioning

confidence: 99%

Enhancing concrete strength and durability of normal and high- strength concrete: Exploring combined effects of optimized silica fume and slag

Mostofinejad,

Nasrollahi,

Bahmani

et al. 2024

Preprint

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The utilization of supplementary cementitious materials (SCMs) in concrete attracted significant attention worldwide due to both environmental benefits and the potential for enhancing concrete's mechanical properties and durability. This study investigates the interaction effects of silica fume and ground granulated blast furnace slag (GGBFS) on the behavior of normal and high-strength concrete in terms of steel corrosion resistance, carbonation depth, and compressive strength. Fifty-two concrete specimens were prepared in four groups with different combinations of water-to-cementitious materials ratio (w/cm), slag content, and silica fume content and were tested. A method was employed to compare the corrosion initiation times of different concrete specimens. The results demonstrated that silica fume improves the concrete's resistance to steel corrosion by enhancing the density, strength, and durability of the cement matrix. The specimen with a w/cm ratio of 0.3 containing 35% slag and 10% silica fume achieved a 33% reduction in carbonation depth and a compressive strength of 118 MPa, representing a 20% increase compared to the similar specimen without slag. Furthermore, the specimen with a w/cm ratio of 0.3 containing 35% slag and 15% silica fume exhibited a 44% increase in steel corrosion resistance compared to the similar specimen without silica fume. While optimizing the combined content of slag and silica fume, this study highlights that their individual effects are less significant than their combined effect when used as partial replacements for cement.

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“…It can, for example, increase the durability of buildings, bridges, and offshore platforms. UHP-GC can also contribute to lower long-term maintenance costs since it can endure natural catastrophes and corrosive conditions [17][18][19][20][21][22][23][24][25]. With the intensification of research and commercialization efforts, there is growing anticipation for the widespread adoption of UHP-GC within the building sector.…”

Section: Introductionmentioning

confidence: 99%

Strength and Chemical Characterization of Ultra High-Performance Geopolymer Concrete: A Coherent Evaluation

Midhin,

Wong,

Ahmed

et al. 2023

Civ Eng J

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The objective of this review article is to analyze published data encompassing compressive strength, tensile strength, elastic modulus, and flexural strength, as well as the utilization of scanning electron microscopy (SEM), energy dispersive x-ray spectroscopy (EDS), and x-ray diffraction (XRD) for Ultra High-Performance Geopolymer Concrete (UHP-GC), with the focus of establishing the current research trends regarding its mechanical, microstructural, and chemical characteristics. After a critical evaluation of the published data from the literature findings, it became evident that UHP-GC can attain a remarkably high level of engineering performance. In UHP-GC, the optimum percentage of silica fume as a slag partial replacement to achieve high compression, tensile, and elastic modulus were traced to be 25, 30, and 35%, respectively. The optimum ratio of sodium silicate to sodium hydroxide and sodium hydroxide molarity for UHP-GC were identified to be 3.5 and 16, respectively. All in all, the review provides a thorough understanding of the review gap and distinct functions of different raw materials in decreasing porosity and enhancing the formation of geopolymeric gels that not only bond but also strengthen UHP-GC. UHP-GC stands as an energy-saving material in concrete technology, poised to forge a path towards a sustainable future for the building sector. Doi: 10.28991/CEJ-2023-09-12-020 Full Text: PDF

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Fiber Type and Curing Environment Effects on the Mechanical Performance of UHPFRC Containing Zeolite

Cited by 28 publications

References 28 publications

A high‐strength concrete resistant to elevated temperatures using steel slag aggregates

A high‐strength concrete resistant to elevated temperatures using steel slag aggregates

Enhancing concrete strength and durability of normal and high- strength concrete: Exploring combined effects of optimized silica fume and slag

Strength and Chemical Characterization of Ultra High-Performance Geopolymer Concrete: A Coherent Evaluation

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