Durability of concrete containing recycled concrete coarse and fine aggregates and milled waste glass in magnesium sulfate environment

Mostofinejad, Davood; Hosseini, Seyed Mohammad; Nosouhian, Farzaneh; Ozbakkaloglu, Togay; Tehrani, Bahareh Nader

doi:10.1016/j.jobe.2020.101182

Cited by 40 publications

(18 citation statements)

References 61 publications

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“…The test conducted by Tayeh et al [ 64 ] revealed reliable sulphate resistance of cementitious mortar with 10% WG powder compared with conventional mortar. However, concrete can be vulnerable to sulphate attack, as it degrades the hydration products, decalcifies C–S–H products, and pronounces leaching, which is more vulnerable to magnesium sulfate sulphate attack than sodium [ 65 ]. The addition of high pozzolanic WG powder transfers the CH products into C–S–H products, which enhances the durability against the sulphate attack.…”

Section: The Durability Of Concrete With Wgmentioning

confidence: 99%

Waste Glass in Cement and Geopolymer Concretes: A Review on Durability and Challenges

et al. 2021

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Every year, the world is producing around 100 metric tons of waste glass (WG), the majority of them are going to landfills that create massive environmental problems. One approach to solve this problem is to transform waste glass into construction materials. Glass is recyclable; however, the melting temperature of the glass is highly dependent on its colour that requires sorting before recycling. To overcome this challenge, many researchers and end-users are using broken glass in concrete either as a binder or aggregates. While significant investigations have done in this area, however, the outcomes of these studies are scattered, and difficult to reach a firm conclusion about the effectiveness of WG in concrete. In this study, the roles of WG and its impact on microstructural and durability properties for both cement and geopolymer concrete are critically reviewed. This review reveals that the amorphous silica in WG effectively participate to the hydration and geopolymerization process and improve concrete microstructural properties. This behaviour of WG help to produce durable concrete against shrinkage, chemical attack, freeze-thaw action, electrical and thermal insulation properties. The optimum replacement volume of binders or natural aggregates and particle size of WG need to be selected carefully to minimise the possible alkali-silica reaction. This review discusses a wide range of parameters for durability properties and challenges associated with WG concrete, which provides necessary guidelines for best practice with future research directions.

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Section: The Durability Of Concrete With Wgmentioning

confidence: 99%

Waste Glass in Cement and Geopolymer Concretes: A Review on Durability and Challenges

et al. 2021

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“…Therefore, WG aggregates accelerate hydration reactivity and create a dense and high-strength interfacial transition zone (ITZ). WG glass with particle sizes larger than 4.75 mm is considered coarse aggregates in concrete and is typically sized up to 16 mm [89]. These types of WG aggregates are being used to replace the stone/brick chips in concrete to impart large volumes and mechanical strength [89].…”

Section: The Role Of Glass As An Aggregate In Concretementioning

confidence: 99%

“…WG glass with particle sizes larger than 4.75 mm is considered coarse aggregates in concrete and is typically sized up to 16 mm [89]. These types of WG aggregates are being used to replace the stone/brick chips in concrete to impart large volumes and mechanical strength [89]. Coarse WG particles do not show any pozzolanic reactivity, but due to their angularity and edges, WG particles help interlock the aggregate and cement paste with high bond strength.…”

Section: The Role Of Glass As An Aggregate In Concretementioning

confidence: 99%

“…On the other hand, a 28.3 µm WG particle can produce fibrous hydration products, which makes the composite denser and stronger (Figure 13b). Further, due to the lower specific gravity of WG compared with that of conventional stone aggregates, the density of concrete reduces when WG (Particle size > 2.36 mm) is used as coarse aggregates [89]. For a 25% replacement of sand by coarse size WG (particle size 150 µm-5 mm), the density of concrete was reduced by 25-30 g/cm 3 [92].…”

Section: Density and Microstructure Of Concrete With Wg Aggregatesmentioning

confidence: 99%

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Roles of Waste Glass and the Effect of Process Parameters on the Properties of Sustainable Cement and Geopolymer Concrete—A State-of-the-Art Review

et al. 2021

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Recent research has revealed the promising potential of using waste glass (WG) as a binder or inert filler in cement and geopolymer concrete to deliver economic and environmental benefits to the construction sector. However, the outcomes obtained by different research groups are scattered and difficult to compare directly because of isolated process parameters. In this study, the roles and impacts of WG and process parameters on the performance of WG-added cement and geopolymer concrete are critically reviewed. This study reveals that the chemical and mineralogical composition, and particle size of WG, mix proportion, activation, and curing condition of concrete are the most important parameters that affect the dissolution behavior of WG and chemical reactivity between WG and other elements in concrete; consequently, these show impacts on properties of concrete and optimum WG level for various applications. These parameters are required to be optimized based on the guidelines for high pozzolanicity and less alkali–silica reactivity of WG in concrete. This review provides a critical discussion and guidelines on these parameters and the chemistry of WG in cement and geopolymer concrete for best practice and highlights the current challenges with future research directions.

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“…Arezki [12] used glass sand as an alternative for quartz sand in ultra-high-performance concrete to select the optimal glass sand (GS) combination, not only based on the highest packing density, but also based on producing optimal concrete properties (workability and compressive strength). Mixing glass with Portland cement can, however, cause a decline in concrete strength due to the alkaline reaction, which depends on time [13]. However, the almost zero porosity and non-hygroscopic character of waste glass, as a substitute for natural sand, improves the properties of self-compacting cement mortar, such as increased workability and penetration resistance of chloride ions, reduced drying shrinkage, and improved compressive strength after being exposed to elevated temperatures [14][15][16] Using RG in cement materials is not without its downsides.…”

Section: Introductionmentioning

confidence: 99%

Recycled Glass as a Substitute for Quartz Sand in Silicate Products

2020

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In 2016, an average of 5.0 tons of waste per household was generated in the European Union (including waste glass). In the same year, 45.7% of the waste glass in the EU was recycled. The incorporation of recycled waste glass in building materials, i.e., concrete, cements, or ceramics, is very popular around the world because of the environmental problems and costs connected with their disposal and recycling. A less known solution, however, is using the waste glass in composite products, including sand-lime. The aim of this work was to assess the role of recycled container waste glass in a sand-lime mix. The waste was used as a substitute for the quartz sand. To verify the suitability of recycled glass for the production of sand-lime products, the physical and mechanical properties of sand-lime specimens were examined. Four series of specimens were made: 0%, 33%, 66%, and 100% of recycled waste glass (RG) as a sand (FA) replacement. The binder mass did not change (8%). The research results showed that ternary mixtures of lime, sand, and recycled waste glass had a higher compressive strength and lower density compared to the reference specimen. The sand-lime specimen containing 100% (RG) increased the compressive strength by 287% compared to that of the control specimen. The increase in the parameters was proportional to the amount of the replacement in the mixtures.

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Durability of concrete containing recycled concrete coarse and fine aggregates and milled waste glass in magnesium sulfate environment

Cited by 40 publications

References 61 publications

Waste Glass in Cement and Geopolymer Concretes: A Review on Durability and Challenges

Waste Glass in Cement and Geopolymer Concretes: A Review on Durability and Challenges

Roles of Waste Glass and the Effect of Process Parameters on the Properties of Sustainable Cement and Geopolymer Concrete—A State-of-the-Art Review

Recycled Glass as a Substitute for Quartz Sand in Silicate Products

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