Permeation characteristics of self compacting concrete made with partially substitution of natural aggregates with rounded lightweight aggregates

Gesoğlu, Mehmet; Güneyisi, Erhan; Özturan, Turan; Öz, Hatice Öznur; Asaad, Diler Sabah

doi:10.1016/j.conbuildmat.2014.02.031

Cited by 48 publications

(25 citation statements)

References 25 publications

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“…The amount of sprayed water determined as the coagulant to form spherical pellets with the motion of rolling disc was about 21-22% by weight of the dry powder. Subsequently, LWFAs were well-kept in sealed plastic bags and stored for hardening in a curing room at a temperature of 20°C and a relative humidity of 70% for 28 days [1,[5][6][7][8][9][10][11]. Thereafter, the hardened fly ash aggregate was sieved into fractions of 0.25-4 mm sizes to be used in SCMs production (Fig.…”

Section: Lightweight Fly Ash Fine Aggregates (Lwfas)mentioning

confidence: 99%

“…Considering the high water absorption of lightweight aggregates they were immersed beforehand in water for 30 min to ensure saturated surface dry condition [1,[5][6][7][8][9][10][11]. At first, the powder, LWFA and natural sand were mixed for a minute in a standard mixer described by ASTM C109 [29].…”

Section: Preparation and Casting Of Test Specimensmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 96%

“…By using LWA in the production of SCC, the self weight of the structures can decrease which can result in reduced structural members sections. Thus, SCC incorporated with LWA can improve the quality of concrete while skipping the process of vibration helps to prevent the segregation of LWA in placing the SCC [8][9][10][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

“…Utilization of industrial waste powder materials such as FA in production of artificial aggregate has attracted the attentions of investigators and practitioners as an alternative way for larger consumption [1][2][3][4][5][6][7][8][9][10][11]. Artificial aggregates can be obtained through processing of different materials and utilizing methods like cold bonding pelletization [1,[5][6][7][8][9][10][11]. The agglomeration of fly ash particles by a cold-bonding process, where the water is the wetting agent acting as a coagulant, is a practical way of producing lightweight aggregate (LWA) with an environmental impact and minimum energy consumption [2,11].…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Utilization of cold bonded fly ash lightweight fine aggregates as a partial substitution of natural fine aggregate in self-compacting mortars

Güneyisi

Gesoğlu

Altan

et al. 2015

Construction and Building Materials

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Section: Lightweight Fly Ash Fine Aggregates (Lwfas)mentioning

confidence: 99%

Section: Preparation and Casting Of Test Specimensmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Utilization of cold bonded fly ash lightweight fine aggregates as a partial substitution of natural fine aggregate in self-compacting mortars

Güneyisi

Gesoğlu

Altan

et al. 2015

Construction and Building Materials

Self Cite

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Fiber‐reinforced lightweight self‐compacting concrete incorporating scoria aggregates at elevated temperatures

Aslani

Sun

Bromley

et al. 2019

Structural Concrete

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Self‐compacting concrete (SCC) has developed rapidly in modern concrete structures to accommodate the need of high deformability and considerable resistance to segregation. The lightweight aggregate called scoria is also utilized to manufacture lightweight self‐compacting concrete (LWSCC) to improve the strength‐to‐weight ratio with considerable cost beneficial. Meanwhile, the LWSCC employs fibers (polypropylene [PP] and steel) equipping different replacement ratios of traditional aggregates, the SCC will be invented to reveal balanced fresh property, spalling behavior, mechanical performance especially at elevated temperatures. In this study, eight LWSCC mix designs were explored with varying fiber ratios by volume of PP fiber (0.1, 0.15, 0.20, and 0.25%) and steel fiber (0.25, 0.5, 0.75, and 1.0%). The effects of different fiber types and ratios are tested with fresh properties (slump flow and J‐ring), hardened mechanical performance (compressive and tensile strength at 20°C) and high temperature resistance (compressive and tensile strength, mass loss and spalling) after 28‐day curing at 100, 300, 600, and 900°C. The 0.25% optimum fiber ratio for PP fiber mix and 0.75% for steel fiber mix are determined with balanced fresh properties as well as high‐temperature resistance for the hardened properties.

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Durability performance of self‐compacting concrete made with waste foundry sand

Sandhu

Siddique

2021

Structural Concrete

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The utilization of waste foundry sand (WFS) has been widely explored in conventional concrete to evaluate strength and durability properties. In this study, durability properties of self-compacting concrete (SCC) made with various percentages (0%-30%) of WFS as a partial replacement of river sand up to the age of 365 days are investigated. Annually, more than 60 million metric tons of WFS is produced worldwide from the casting industry, creating environmental problems. The scarcity of river sand is another major area of concern that can be addressed with the utilization of WFS in concrete. Tests were conducted for fresh properties, compressive strength, water absorption, sorptivity, rapid chloride permeability, and sulfate resistance. All the SCC mixes exhibited fresh-state properties as per EFNARC. With the incorporation of WFS up to 30% increased volume of permeable pore space (13.43%-16.67%), water absorption (2.11-3.07 mm), chloride permeability (2119-3553 C), and decreased compressive strength of sulfatecured samples by nearly 5% compared to water-cured samples at 28 days of curing were observed. The concrete samples showed better performance of pore structure, permeation, sulfate attack, and chloride permeability at 90 and 365 days of curing age. It was found that cost-effective SCC with performance comparable to the control mix could be achieved by using WFS up to 10%.

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Permeation characteristics of self compacting concrete made with partially substitution of natural aggregates with rounded lightweight aggregates

Cited by 48 publications

References 25 publications

Utilization of cold bonded fly ash lightweight fine aggregates as a partial substitution of natural fine aggregate in self-compacting mortars

Utilization of cold bonded fly ash lightweight fine aggregates as a partial substitution of natural fine aggregate in self-compacting mortars

Fiber‐reinforced lightweight self‐compacting concrete incorporating scoria aggregates at elevated temperatures

Durability performance of self‐compacting concrete made with waste foundry sand

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