Investigation of usability of limonite aggregate in heavy-weight concrete production

Esen, Yüksel; Doğan, Zülfü Murat

doi:10.1016/j.pnucene.2018.01.011

Cited by 37 publications

(9 citation statements)

References 28 publications

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“…Many investigations have been conducted about the use of wastes in cement based materials, like the construction and demolition waste (CDW) (Silva and Andrade, 2017), granite residue (Sharma et al, 2017), siderite residue (Esen and Do gan, 2017), limonite residue (Esen and Do gan, 2018) and water treatment sludge (WTS) (Andrade et al, 2019). At the same time, another waste investigated today is the use of rubber from tire waste.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of tire rubber surface pre-treatment and silica fume on physical-mechanical behavior and microstructural properties of concrete

Copetti

Borges

Squiavon

et al. 2020

Journal of Cleaner Production

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Section: Introductionmentioning

confidence: 99%

Evaluation of tire rubber surface pre-treatment and silica fume on physical-mechanical behavior and microstructural properties of concrete

Copetti

Borges

Squiavon

et al. 2020

Journal of Cleaner Production

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“…Therefore, high-performance shielding materials, especially at high temperature, are important guarantees for the reliable operation of nuclear equipment and essential prerequisites for the safe application of nuclear energy. [2][3][4] So far, various shielding materials are designed and used in the nuclear facility, such as metal-based materials, 5-9 concrete, [10][11][12][13] ceramic-based materials, [14][15][16][17] polymer-based materials, 11,[18][19][20] and so on. Lightweight and integration have become important characteristics of future shielding materials, as the trend of miniaturization and mobility of nuclear facilities.…”

Section: Introductionmentioning

confidence: 99%

“…So far, various shielding materials are designed and used in the nuclear facility, such as metal‐based materials, 5–9 concrete, 10–13 ceramic‐based materials, 14–17 polymer‐based materials, 11,18–20 and so on. Lightweight and integration have become important characteristics of future shielding materials, as the trend of miniaturization and mobility of nuclear facilities 21,22 …”

Section: Introductionmentioning

confidence: 99%

Fabricating UHMWPE‐based shielding materials with excellent high‐temperature mechanical properties and irradiation endurance properties via controlling crosslinked and crystalline structures

Xu,

Zhou,

Sun

et al. 2023

Polymers for Advanced Techs

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Shielding materials are important guarantees for the reliable operation of nuclear equipment and essential prerequisites for the safe application of nuclear energy. As an essential and most widely used shielding material, improving the high‐temperature mechanical properties of PE‐based shielding material is of significant importance for the lightweight and integrated design of nuclear shielding material systems. Here, a simple crosslinking method was proposed to control the crosslinking degree and crystallinity to prepare UHMWPE‐based shielding materials with excellent high‐temperature mechanical properties and irradiation endurance properties. The enhancement mechanisms of mechanical properties, irradiation endurance properties and shielding properties were revealed. Meanwhile, the γ‐rays and neutrons shielding properties were studied using Geant4. When the crosslinking degree was 20.62 × 10−3 g/mol and the crystallinity was 12.13%, UHMPE‐based shielding material with optimal overall performance was obtained. Compared with the un‐crosslinked control sample, the tensile strength and elongation at break at room temperature, 70 and 90°C were 22.3 MPa (48.90% increased) and 8.43% (154.68% increased), 8.65 MPa (105.46% increased) and 6.35% (154.00% increased), 7.48 MPa (128.75% increased) and 6.2% (89.60% increased), respectively. The vicat softening temperature and maximum thermal deformation temperature were enhance 4.20 and 6.56°C when the crosslinking degree was 27.51 × 10−3 g/mol and the crystallinity is 10.83%. Our work provided a feasible method to increase the upper temperature limit and broaden the application range of PE‐based nuclear shielding materials.

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“…Lead or heavy aggregates are usually used to make heavy concrete. Due to the adverse effects of lead on human health, protective shields can be created using barite, hematite, siderite, limonite, ilmenite, or serpentine containing iron ore, which is generally of high density [ 5 , 6 ]. The aggregates of concrete play a principal role in improving concrete shielding properties and, therefore, have good shielding properties for the attenuation of X and gamma rays [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties and Gamma Radiation Transmission Rate of Heavyweight Concrete Containing Barite Aggregates

2022

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The primary objective of this research was to study the transmission of gamma radiation from heavyweight concrete containing barite aggregates. For this purpose, cylindrical and cubic specimens were produced for 10 mix designs. The mix designs containing different percentages of barite aggregates were calculated; five mix designs were also calculated for the compressive strength of 25 MPa, while five of them were designed for the compressive strength of 35 MPa to study the influence of the compressive strength rate on the reduction in gamma radiation transmission. The results indicated that both compressive and tensile strength was decreased by increasing the ratio of barite aggregates. The rate in reduction of compressive strength and especially tensile strength in concrete C35 was less than in concrete C25. The use of barite aggregates increased the attenuation coefficient of concrete. The attenuation coefficient in C35 concrete increased more than that in C25 upon increasing the amount of barite aggregate. By increasing the thickness of concrete with different percentages of barite, the rate of radiation loss in different samples was closer. The difference in the rate of radiation loss at a thickness of 150 mm was not much different from that at a thickness of 100 mm, whereas it was considerably decreased at a thickness of 300 mm. The test results indicated that the reduction in the gamma transmission rate is significantly dependent on the density of concrete.

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Investigation of usability of limonite aggregate in heavy-weight concrete production

Cited by 37 publications

References 28 publications

Evaluation of tire rubber surface pre-treatment and silica fume on physical-mechanical behavior and microstructural properties of concrete

Evaluation of tire rubber surface pre-treatment and silica fume on physical-mechanical behavior and microstructural properties of concrete

Fabricating UHMWPE‐based shielding materials with excellent high‐temperature mechanical properties and irradiation endurance properties via controlling crosslinked and crystalline structures

Mechanical Properties and Gamma Radiation Transmission Rate of Heavyweight Concrete Containing Barite Aggregates

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