Assessing the effect of GGBS content and aggregate characteristics on drying shrinkage of roller compacted concrete

Saluja, Sorabh; Kaur, Kulwinder; Goyal, Shweta; Bhattacharjee, Bishwajit

doi:10.1016/j.conbuildmat.2018.12.179

Cited by 27 publications

(7 citation statements)

References 20 publications

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“…Also, increase in replacement of Cement with GGBS increases the shrinkage strain in both type of aggregates. Least shrinkage strain has been observed in 20% replacement of GGBS with limestone aggregate [44]. Shrinkage is reduced with the replacement of cement material, GGBS in the above case.…”

Section: Shrinkagementioning

confidence: 81%

A Review on Recent Advancements in Roller Compacted Concrete

Khed¹,

Gokulanadh²,

M³

2020

IJIES

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Roller Compacted Concrete (RCC) is a durable material highly used for Pavements and Dams construction. In this regard being a high qualified material for its many advantages like Faster paving, Labor savings, Tax savings etc., researchers have produced many significant studies and derived the best results by various approaches. Some research includes the study of roller compacted concrete by partial replacement of cementitious minerals such as GGBS, admixtures like Glass fibres, Synthetic Fibres etc. With the help of locally available materials many tests have been conducted and results were shared to the world for further scope of study. Roller compacted concrete (RCC) has many advantages and the main attraction is its low water requirement with high workability and high compaction. This automatically results the outstanding compression strength. Current research has been focused on the improvement of mechanical properties and durability of the roller Compacted concrete incorporating different minerals and materials. In this paper, the Review of the papers have been presented in order to come to an overall understanding of the current progress for the Roller Compacted Concrete which is mainly being used for Roads, pavements, Parking lots and Dams

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Section: Shrinkagementioning

confidence: 81%

A Review on Recent Advancements in Roller Compacted Concrete

Khed¹,

Gokulanadh²,

M³

2020

IJIES

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“…Some of these metal industry wastes are air-or water-cooled copper slag, phosphorus slag, groundgranulated blast furnace slag and steel slag. Besides, there are alternative minor waste products including red sludge, air pollution control residues and paper sludge which also have appropriate chemical composition for mineral carbonation [13][14][15][16][17][18][19].…”

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confidence: 99%

CO2 mineralization by burnt oil shale and cement bypass dust: effect of operating temperature and pre-treatment

Yörük

Uibu

Usta

et al. 2020

J Therm Anal Calorim

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The alkaline wastes such as burnt oil shale (BOS) and cement bypass dust (BPD) generally contain free lime and portlandite which make them suitable sorbent materials for CO2 trapping via mineral carbonation technique of carbon capture and sequestration. In order to study the reaction kinetics and effect of operating parameters on carbonation processes of such alkaline wastes for future industrial sized scale-ups, as well as to identify the effects on carbonation capacity when these sorbents undergo pre-treatment and are exposed to different temperatures, BOS and BPD as sorbents in CO2 mineralization process have been investigated with thermal analysis methods in the current work. Results indicate that selected types of BOS and BPD could be used as binders in the CO2 mineralization systems, binding reasonably good amount of CO2 already in the early stage of the carbonation process which later slows down as the rate of CaO carbonation becomes mainly diffusion controlled. Increased process temperature and hydration as pre-treatment improve the CO2 binding ability, while the effect of milling has been found to be staggering and not as significant as the effect of hydration and temperature rise. The appropriate kinetic mechanism functions were determined, and the kinetic parameters—activation energy (Ea) and pre-exponential factor (A) values were calculated for all the samples. The Ea values of hydrated samples are lower for BOS samples compared to non-hydrated samples. It was shown that activation by hydration enables to reach the same CO2 uptake levels at lower temperatures, thereby making the mineralization process more energy efficient and thus lowering the costs.

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“…The shrinkage is increased initially, but overall, it is not affected by using GGBS [32]. The shrinkage strain increased with higher replacement levels with GGBS [33] and the least strain with 20% replacement [34]. Based on studies, it is illustrated that autogenous shrinkage increases with GGBS replacements [35].…”

Section: Hydration and Strength Developmentmentioning

confidence: 99%

Sustainable Usage of Waste Materials in Aerated and Foam Concrete: A Review

Raj¹,

Karthiyaini²

2021

cea

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The utilization of waste materials in concrete is now a widely used concept that counteracts the depletion of natural resources. In addition to this, it will untangle the disposal of waste materials in nature and find an alternative approach to shelter the environmental resources. Due to rapid growth in industrialization, waste management has become increasingly challenging in recent years. Several waste materials could be used in whole or in part to replace cement or aggregates. The main disadvantage of conventional concrete is its increased self-weight. The paper summarizes the current knowledge of two types of lightweight concrete, viz aerated and foam concrete that can be made less dense than conventional concrete and the possibility of using waste materials. The usage of admixtures like Fly ash, GGBS, silica fume, and waste materials like quarry dust, rubber particles, rice husk ash, plastic waste, glass powder, and foundry sand is examined. The effective use of waste materials in lightweight concrete is reviewed by evaluating properties such as workability, elastic modulus, compressive strength, flexural strength, and microstructural characteristics. The optimum percentage of Fly ash, GGBS, silica fume, and rice husk ash is found to be 20%, 50 -75%, greater than 10%, and 20 -30%, respectively. Out of different types of plastic waste used in concrete, PVC granules that pass 5mm sieve size are used to prepare lightweight aggregate concrete, which exhibits a density of around 1500kg/m 3 . The quarry dust is the best option for an acceptable aggregate replacement at 20% in foam concrete. The studies show a drastic increment in compressive strength and capillary absorption is also increased to 14% than conventional cement, which reduced the risk of early-age cracking. Fine aggregate replaced of glass powder exhibits delay in setting time at higher percentages. While using 20% of fine aggregate substituted with foundry sand yields comparable results to the control specimen in terms of their mechanical properties

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Assessing the effect of GGBS content and aggregate characteristics on drying shrinkage of roller compacted concrete

Cited by 27 publications

References 20 publications

A Review on Recent Advancements in Roller Compacted Concrete

A Review on Recent Advancements in Roller Compacted Concrete

CO2 mineralization by burnt oil shale and cement bypass dust: effect of operating temperature and pre-treatment

Sustainable Usage of Waste Materials in Aerated and Foam Concrete: A Review

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