ASR mitigation using binary and ternary blends with waste glass powder

Fanijo, Ebenezer O.; Kassem, Emad; Ibrahim, A.

doi:10.1016/j.conbuildmat.2021.122425

Cited by 31 publications

(15 citation statements)

References 66 publications

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“…The most significant decrease of 9.2 % was observed in the compressive strength of control specimens. The same trend was observed by other authors [28,32]. The least drop in compressive strength of 1.9 % only was recorded in the specimens where 5 % of cement was replaced with milled glass (Figure 6d).…”

Section: Resultssupporting

confidence: 89%

“…Thus, a significant result has been obtained showing that the developed composite TS25+MIX20 is resistant to ASR-induced degradation despite the use of 45 % of waste in the mix. According to the literature [28,35,39], the ternary combination of SCMs was more efficient and effective than the binary blend, which addressed not only the durability of concrete, the resistance to ASR, but also its mechanical characteristics.…”

Section: Resultsmentioning

confidence: 99%

“…There are few studies on the individual and combined effects of metakaolin and milled glass as a cement substitute in concrete. It was reported that the combined performance of the two pozzolanic additives mixed with cement was better than the performance of each material used separately [28]. Researchers tested the durability of green self-compacting concrete that incorporated recycled cathode ray tube glass and metakaolin [29].…”

Section: Introductionmentioning

confidence: 99%

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The Effect of a Complex Pozzolanic Additive Consisting of Milled Glass and Metakaolin on the Degradation of a Cementitious Composite With Ground Waste Glass Caused by Alkali-Silica Reaction

Barkauskas¹

2022

Ceramics - Silikaty

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This paper investigates the effect of partial replacement of cement by milled glass (MS), metakaolin (MK), and their mixture and partial replacement of sand by crushed glass (TS)on the physical and mechanical properties of a cementitious composite, as well as on the resistance of the composite to degradation caused by alkali-silica reaction (ASR). After 28 and 56 days of curing, the highest improvement in the mechanical properties was observed in the batches of specimens with the MS, MK and their mixture. The physical and mechanical properties of specimens with partially replaced sand to TS also deteriorated the least (the lowest expansion 0.02 %) with the application of the MS and MK mixture after 56 days of exposure to alkaline attack. XRD and microstructural analyses have shown that the reduction in expansion is due to the higher content of hydration products, as well as to the denser contact zone between the aggregate and the cementitious matrix.

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Section: Resultssupporting

confidence: 89%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Effect of a Complex Pozzolanic Additive Consisting of Milled Glass and Metakaolin on the Degradation of a Cementitious Composite With Ground Waste Glass Caused by Alkali-Silica Reaction

Barkauskas¹

2022

Ceramics - Silikaty

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“…Pulverised glass powder (PGP) has recently gained attention as a potential alternative to FA. The argument for PGP as an ASR suppressor relies on its pozzolanic reactivity for ASR mitigation [30][31][32][33]. In addition, PGP limits the dissolution of amorphous silica from reactive aggregates by discharging aluminium in the pore solution [34] and reducing the alkalinity in the vicinity of the reactive aggregates [35].…”

Section: Introductionmentioning

confidence: 99%

The efficiency of recycled glass powder in mitigating the alkali-silica reaction induced by recycled glass aggregate in cementitious mortars

et al. 2022

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With the potential for a decline in fly ash (FA) production over time, due to the phasing down of coal fired power plants, alternative supplementary cementitious materials need to be identified. The efficiency of pulverised glass powder (PGP) was studied for its reactivity and its capacity for inhibiting alkali-silica reaction (ASR) that results from utilisation of recycled glass as a fine aggregate (sand) replacement. Characterisations of pastes containing PGP reveal that PGP may possess latent hydraulic properties, resulting in a more than 75% strength activity index, together with better strength gain than FA-blended pastes. PGP also offered increased heat of hydration compared to FA, from a combination of the dilution effect, filler effect and early-age reactions of PGP. A comparable efficiency of PGP and FA in ASR expansion mitigation was confirmed with mortar bar expansions of less than 0.10% at cement replacement levels of at least 10%. Both PGP and FA provided alkali dilution and reduced the mass transport in hydrated cement paste from the refinement of larger pores to below 60 nm. The FA mix consumed calcium hydroxide and, thus, performed marginally better than the PGP mix in mitigating ASR. This pozzolanic reactivity is not evident for PGP, whereas in the literature glass powders are often regarded as pozzolanic. Microscopic images confirm that PGP and FA significantly limit the occurrence of ASR gels without altering its composition. It was concluded that PGP is a comparable ASR inhibitor to FA, despite the underlying differences in their mechanisms. The result of this research support the utilisation of recycled glass both as an aggregate, and as an ASR-inhibiting SCM in cementitious systems.

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“…Glass is a material composed mainly of amorphous silica and present pozzolanic properties when finely ground [7]- [9]. According to Patel et al [15], glass particles up to 75 μm can replace Portland cement in amounts from 10% to 25%, showing satisfactory results in the production of cementitious composites, and several authors attributes improvements in mechanical properties to pozzolanic reactions from glass powder [3]- [12].…”

Section: Introductionmentioning

confidence: 99%

Assessment of properties of ultra-high performance cementitious composites with glass powder waste

Soares

Freitas

Júnior³

et al. 2022

Rev. IBRACON Estrut. Mater.

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Novel developments on concrete technology such as high and ultra-high-performance concrete (HPC and UHPC) are notorious by its high consumption of Portland cement. Supplementary cementitious materials have been used as partial replacement of Portland cement aiming to minimizing clinker content, optimizing the use of binders, reducing CO2 emissions, and increasing durability. Waste glass powder could be an alternative due to its silica-rich nature and wide availability. This work aims to assess the influence Portland cement substitution by finely ground waste glass powder in contents of 10%, 20%, 30% and 50% on physical and mechanical behavior of ultra-high-performance cementitious composites (UHPCC). Results indicates the use of glass powder as substitution up to 50% of Portland cement does not significantly affect the analyzed properties at 28 days.

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ASR mitigation using binary and ternary blends with waste glass powder

Cited by 31 publications

References 66 publications

The Effect of a Complex Pozzolanic Additive Consisting of Milled Glass and Metakaolin on the Degradation of a Cementitious Composite With Ground Waste Glass Caused by Alkali-Silica Reaction

The Effect of a Complex Pozzolanic Additive Consisting of Milled Glass and Metakaolin on the Degradation of a Cementitious Composite With Ground Waste Glass Caused by Alkali-Silica Reaction

The efficiency of recycled glass powder in mitigating the alkali-silica reaction induced by recycled glass aggregate in cementitious mortars

Assessment of properties of ultra-high performance cementitious composites with glass powder waste

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