Water absorption and sorptivity of alkali-activated ternary blended composite binder

Hossain, M. M.; Karim, Rezaul; Elahi, Manjur A; Zain, Muhammad Fauzi Mohd.

doi:10.1016/j.jobe.2020.101370

Cited by 17 publications

(11 citation statements)

References 24 publications

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“…On the other hand, according to Özbay et al, 65 increasing GGBS content results in a reduction of micro‐pore and also water absorption. Aghaeipour and Madhkhan 66 reported that utilizing 40% GGBS decreased water absorption and porosity. Ultimately, it is clear that incorporation of GGBS and GO at the same time can result in decreasing the water absorption as it is seen in this study.…”

Section: Resultsmentioning

confidence: 99%

Influence of ground granulated blast furnace slag on mechanical properties and durability of graphene oxide‐reinforced cementitious mortars

Hosseini

Atrian

Mirvalad

et al. 2023

Structural Concrete

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In recent decades, considering environmental issues, partial replacement of Portland cement with supplementary cementitious material (SCM), namely ground granulated blast furnace slag (GGBS), has been in the spotlight of research. On the other hand, carbon‐based nanomaterials, especially graphene oxide (GO), are recognized as an extraordinary additive with special characteristics that can be included in cementitious materials. In this research, the impact of GGBS on the mechanical properties and durability of GO‐modified mortars was investigated at 28 and 90 days. The results demonstrate that by increasing the content of GGBS, a decrease in the flexural and compressive strength compared to plain cement sample was seen. On the other hand, incorporation of GGBS and GO led to higher strength compared to GO‐cement mortar. Also, the compressive strength of the sample containing 20% GGBS and 0.03% GO was 38.7% higher than the plain cement sample at 90 days. On the other hand, adding GGBS to a GO‐reinforced sample resulted in a more durable specimen against chloride and acid environments. The sample made of 40% GGBS in GO‐modified mortar not only has the best efficiency in harsh environments but also has the lowest water absorption. This mortar improved the migration coefficient, mass loss in HCl solution, and initial sorptivity by 20.1%, 57.7%, and 37.1%, respectively. Moreover, the mentioned sample had a denser microstructure with smaller cracks compared to other samples, based on scanning electron microscope (SEM) images.

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Section: Resultsmentioning

confidence: 99%

Influence of ground granulated blast furnace slag on mechanical properties and durability of graphene oxide‐reinforced cementitious mortars

Hosseini

Atrian

Mirvalad

et al. 2023

Structural Concrete

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“…Assi et al (2016) [30] reported that there was a 7.03% drop in the void ratio and an 18.9% drop in absorption after the immersion when Pc content in the geopolymer was reduced from 15% Pc to 0%. Hossain et al (2020) [47] studied the water absorption and sorptivity of alkali-activated binders by blending rice husk ash, fly ash, and slag activated with 2.5 M NaOH solution. It was reported that water absorption and sorptivity of the early-age alkali-activated FA binders were significantly higher than those of Pc [41,47].…”

Section: Water Absorption Permeability and Sorptivitymentioning

confidence: 99%

Strength and Durability Properties of High-Volume Fly Ash (HVFA) Binders: A Systematic Review

Runganga,

Okonta,

Musonda

2024

CivilEng

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South Africa is endowed with a wealth of coal-fired power stations that can produce extremely high volumes of fly ash per year exceeding 34 million tonnes. The use of high-volume fly ash (HVFA) binders in the construction sector has the capacity to significantly reduce greenhouse gas emissions associated with traditional cement production and offset the carbon footprint of Eskom. The excessive production of fly ash by Eskom warrants the need for developing ultra-high-volume fly ash binders (UHVFA, fly ash/binder > 60 wt%). Nonetheless, fly ash (FA) replacement of cement is still largely limited to 35% regardless of more ambitious research indicating the potential to surpass 60%. In view of the urgent need for South Africa to offset and reduce its carbon footprint, this work reviews and summarises the literature on the performance of HVFA binders with a focus on two specific areas: (i) strength and (ii) durability. On HVFA binder strength, the focus is drawn on work that analysed the compressive strength, flexural strength, and split tensile strength. This review focuses on the extant literature analysing the durability of HVFA binders using various tests, including sorptivity, resistivity, permeability, tortuosity, rapid chloride penetration tests, resistance to sulphate attack, and microstructural analysis. As the FA content increases towards optima, i.e., 50–80%, the most indicative composite characteristics of the strength and durability properties are UCS (30–90 MPa) and permeability (low). This review reveals the leading methodologies, instrumentation, findings, challenges, and contradictions.

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“…In this method, specimens are oven dried and dipped in water to measure the mass gain over a period of time. This technique has been adopted in a wide variety of sorptivity investigations for air entraining agent concrete [49], self-consolidating concrete [40,50], steam-cured concrete [51], concrete with micro-and macro-silica [52,53], mortars with waste powder of fly ash and marble [54], fiber-reinforced concrete [42], and alkali-activated composites [55][56][57].…”

Section: Introductionmentioning

confidence: 99%

Enhanced recyclability of waste plastics for waterproof cementitious composites with polymer-nanosilica hybrids

Al-Mansour

Yang

et al. 2022

Materials & Design

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Water absorption and sorptivity of alkali-activated ternary blended composite binder

Cited by 17 publications

References 24 publications

Influence of ground granulated blast furnace slag on mechanical properties and durability of graphene oxide‐reinforced cementitious mortars

Influence of ground granulated blast furnace slag on mechanical properties and durability of graphene oxide‐reinforced cementitious mortars

Strength and Durability Properties of High-Volume Fly Ash (HVFA) Binders: A Systematic Review

Enhanced recyclability of waste plastics for waterproof cementitious composites with polymer-nanosilica hybrids

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