Influence of copper slag and metakaolin on the durability of self compacting concrete

Sharma, Rahul; Khan, Rizwan A.

doi:10.1016/j.jclepro.2017.10.029

Cited by 101 publications

(25 citation statements)

References 33 publications

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“…Mohamed Sadawy et al, [9] examined that the impact of nano TiO₂ on compressive high-quality, bond splendid and consumption behavior of fortification bars. It has been determined that the compressive high-quality, bond superb and intake competition became extended with growing nano-TiO₂ upto 1.5% weight substitution of concrete.…”

Section: Research On Mechanical and Durability Properties Of Ggbs Andmentioning

confidence: 99%

Research on Mechanical and Durability Properties of GGBSand Copper Slag Mix Mortar

2019

IJRTE

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Cement is the superb wellspring of ecological impact in cement and mortar making. This is due to parcel of carbon dioxide (CO₂) emanation. This assignment manages supplanting of bond with GGBS and motion sand with copper slag and M-sand along nanoparticles like Titanium dioxide (TiO₂) has been incited to enhance the microstructure and increment the compressive first-rate of the mortar. The mechanical and durability research are finished at 7,28 and 56 days and are been contrasted and the not unusual mortar

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Section: Research On Mechanical and Durability Properties Of Ggbs Andmentioning

confidence: 99%

Research on Mechanical and Durability Properties of GGBSand Copper Slag Mix Mortar

2019

IJRTE

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“…It flows readily to fill the formwork and compact under its weight without requiring any compaction or vibration [1]. SCC differs from conventional concrete in including a higher proportion of cement, mineral admixtures, fine aggregates, superplasticizer, and lower content of coarse aggregates [2]. Furthermore, supplementary cementing materials (SCM) in SCC are essential differences between SCC and conventional concrete.…”

Section: Introductionmentioning

confidence: 99%

Utilization of Sewage Sludge Ash in Self-Compacted Concrete

Shanti¹,

El-Dieb²,

Maraqa³

2021

International Conference on Civil, Structural and Transportation Engineering

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Rapid urbanization throughout the world resulted in a considerable amount of sewage sludge, which is commonly considered a great environmental concern. Also, the rapid growth of self-compacting concrete (SCC) marks a significant milestone in enhancing the construction industry's effectiveness. Hence, an experimental program was carried out to study self-compacting concrete (SCC) properties incorporating sewage sludge ash (SSA) as a partial replacement of cement. Mixes were prepared with two percentages (0 and 20% by mass) of SSA as partial replacement of cement. The slump flow, T50 flow time, J-ring, and V-funnel were evaluated for the fresh SCC. Hardened properties of SCC were assessed by measuring compressive strength, rapid chloride penetration, bulk electrical resistivity, water absorption rate (i.e., sorptivity), and water permeability. Test results indicated that SCC made with SSA must incorporate a higher dosage of admixtures than the control mix to achieve satisfactory workability, passing ability, and viscosity. SSA contributed to the concrete mix's late strength development and led to durable concrete with a low chloride permeability resistance and a high electrical resistivity. There was a negligible increase in the rate of water absorption and water permeability. However, the water absorption rate and permeability are expected to reduce with age due to the pozzolanic reaction of SSA. SSA was found to have the potential to be used as partial cement replacement in making SCC, which could lead to a profound impact on solid waste management and sustainable development in the construction industry.

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“…These developments in the construction sector increase the importance of natural resources over the next decade. Therefore, the construction sector has begun to adopt the concept of sustainability (Sharma and Khan 2018). While some countries are poor in terms of natural resources, developed countries have used these natural resources frequently in the construction sector.…”

Section: Introductionmentioning

confidence: 99%

Eco-Friendly Basalt Fiber Reinforced Cement Composites (BFRC) Containing Waste Copper As Partial Replacement For Sand And Cement

Aeshah

Kaplan

2021

Preprint

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In this study, the use of copper slag and aggregate together with basalt fiber in cement-based composites was studied. It was aimed to contribute to the ecosystem by using copper waste, which is an environmental problem, in cement-based composites. In addition, the effect of basalt fiber on the strength and durability properties of composites was investigated. Taguchi optimization was carried out for cement-based composites. In this context, Taguchi L18 matrix was used. Copper slag was used at rates of 0, 7.5% and 15%, and copper aggregate at rates of 0, 25% and 50%. Basalt fibers of 6 and 12 mm length were used at the rates of 1%, 2% and 3%. The w/b ratios of the mixtures were chosen as 0.40, 0.50 and 0.60. Durability tests such as permeability, freeze-thaw and sulphate resistance with fresh and hardened mortar properties were performed on 18 different mixtures. In terms of the 7, 28 and 91-day flexural and compressive strength of the mixtures, the use of 1% of 6 mm long fiber in the mixtures with a w/b ratio of 0.40 provided more positive results. In terms of freeze-thaw resistance, it is necessary to use 3% of 6 mm long fiber in mixtures with 0.40 w/b. The use of 7.5% copper slag reduced the water penetration depth. The use of 15% copper slag in mixtures affected by sodium sulphate reduced the expansion values. Since the increase in the ratio of copper aggregate decreased the aggregate volume, it caused the drying shrinkage values to increase. As a result, it was observed that copper slag has a more positive effect than copper aggregate for the strength and durability of composites. However, by using 25% of copper aggregate by sacrificing some features, it can contribute to the environment and ecosystem. The use of basalt fiber with a length of 6 mm and a ratio of 1% increased the mechanical properties, while the use of 3% contributed significantly to the freeze-thaw resistance. It was determined that copper wastes contribute to the environment and ecosystem by using them instead of cement and aggregate.

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Influence of copper slag and metakaolin on the durability of self compacting concrete

Cited by 101 publications

References 33 publications

Research on Mechanical and Durability Properties of GGBSand Copper Slag Mix Mortar

Research on Mechanical and Durability Properties of GGBSand Copper Slag Mix Mortar

Utilization of Sewage Sludge Ash in Self-Compacted Concrete

Eco-Friendly Basalt Fiber Reinforced Cement Composites (BFRC) Containing Waste Copper As Partial Replacement For Sand And Cement

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