Performance of high-strength green concrete under the influence of curing methods, volcanic pumice dust, and hot weather

Zeyad, Abdullah M.; Magbool, Hassan M.; Amran, Mugahed; Mijarsh, M.J.A.; Almalki, Ali

doi:10.1007/s43452-022-00445-1

Cited by 22 publications

(7 citation statements)

References 47 publications

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“…Thus, the analysis of the results suggests the possibility of using waste milled for 10 min as an active mineral additive, as well as to give better formability to the mixture and its micro-reinforcement to obtain fiber-reinforced concrete [ 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 ]. The presence of quartz in the amorphous phase causes high solubility in saturated alkaline solutions of the hydrated binder and active interaction with Ca(OH) 2 released as a result of the hydration of clinker minerals.…”

Section: Resultsmentioning

confidence: 99%

Technogenic Fiber Wastes for Optimizing Concrete

et al. 2022

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A promising method of obtaining mineral fiber fillers for dry building mixtures is the processing of waste that comes from the production of technogenic fibrous materials (TFM). The novelty of the work lies in the fact that, for the first time, basalt production wastes were studied not only as reinforcing components, but also as binder ones involved in concrete structure formation. The purpose of the article is to study the physical and mechanical properties of waste technogenic fibrous materials as additives for optimizing the composition of raw concrete mixes. To assess the possibility of using wastes from the complex processing of TFM that were ground for 5 and 10 min as an active mineral additive to concrete, their chemical, mineralogical, and granulometric compositions, as well as the microstructure and physical and mechanical characteristics of the created concretes, were studied. It is established that the grinding of TFM for 10 min leads to the grinding of not only fibers, but also pellets, the fragments of which are noticeable in the total mass of the substance. The presence of quartz in the amorphous phase of TFM makes it possible to synthesize low-basic calcium silicate hydrates in a targeted manner. At 90 days age, at 10–20% of the content of TFM, the strength indicators increase (above 40 MPa), and at 30% of the additive content, they approach the values of the control composition without additives (above 35 MPa). For all ages, the ratio of flexural and compressive strengths is at the level of 0.2, which characterizes a high reinforcing effect. Analysis of the results suggests the possibility of using waste milled for 10 min as an active mineral additive, as well as to give better formability to the mixture and its micro-reinforcement to obtain fiber-reinforced concrete.

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Section: Resultsmentioning

confidence: 99%

Technogenic Fiber Wastes for Optimizing Concrete

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“…The μ value shown in the figure is based on exposure to photons at a 0.662 MeV energy level. Additives such as silica fume [ 130 ], GGBS [ 131 , 132 , 133 , 134 ], rice husk ash [ 135 , 136 ], palm oil fuel ash [ 137 , 138 , 139 , 140 , 141 ], and fly ash [ 142 , 143 , 144 , 145 , 146 , 147 , 148 , 149 , 150 , 151 ] serve as a partial cement replacement, which aims to reduce the carbon footprint of concrete [ 152 , 153 , 154 , 155 , 156 , 157 ]. The 60% increase in the fly ash replacement for cement in concrete reduced the μ value by 10% [ 63 ].…”

Section: Radiation Shieldingmentioning

confidence: 99%

Recent Trends in Advanced Radiation Shielding Concrete for Construction of Facilities: Materials and Properties

et al. 2022

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Nuclear energy offers a wide range of applications, which include power generation, X-ray imaging, and non-destructive tests, in many economic sectors. However, such applications come with the risk of harmful radiation, thereby requiring shielding to prevent harmful effects on the surrounding environment and users. Concrete has long been used as part of structures in nuclear power plants, X-ray imaging rooms, and radioactive storage. The direction of recent research is headed toward concrete’s ability in attenuating harmful energy radiated from nuclear sources through various alterations to its composition. Radiation shielding concrete (RSC) is a composite-based concrete that was developed in the last few years with heavy natural aggregates such as magnetite or barites. RSC is deemed a superior alternative to many types of traditional normal concrete in terms of shielding against the harmful radiation, and being economical and moldable. Given the merits of RSCs, this article presents a comprehensive review on the subject, considering the classifications, alternative materials, design additives, and type of heavy aggregates used. This literature review also provides critical reviews on RSC performance in terms of radiation shielding characteristics, mechanical strength, and durability. In addition, this work extensively reviews the trends of development research toward a broad understanding of the application possibilities of RSC as an advanced concrete product for producing a robust and green concrete composite for the construction of radiation shielding facilities as a better solution for protection from sources of radiation. Furthermore, this critical review provides a view of the progress made on RSCs and proposes avenues for future research on this hotspot research topic.

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“…Furthermore, it can be observed that HSC exhibits a greater tendency toward linear elastic behavior and brittleness in comparison to conventional concrete 30 . Therefore, HWHSC production is a suitable choice for radiation protection with high compressive strength of more than 60 MPa 31 …”

Section: Introductionmentioning

confidence: 99%

“…30 Therefore, HWHSC production is a suitable choice for radiation protection with high compressive strength of more than 60 MPa. 31 Nowadays, the technology of nanomaterials (NMs) entered the field of researchers' interest to improve the properties of concrete in general, including the development of shielding concrete. 32 Research has shown that the use of NM with different nanostructures contributed to improving the radiation insulation properties of shielding concrete (radiative attenuation).…”

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confidence: 99%

Effects of nano titanium and nano silica on high‐strength concrete properties incorporating heavyweight aggregate

Abu el‐Hassan,

Hakeem,

Amin

et al. 2023

Structural Concrete

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This investigation aims to study the effect of replacing 100% of fine and coarse aggregates with heavyweight aggregates and adding nano titanium (NT) and nano silica (NS) on shielding against radiation and on the mechanical and transport properties of heavyweight high‐strength concrete (HWHSC). In this study, 20 mixes were prepared that included the use of hematite and steel slag (SS) aggregate with NS or NT used as additions to mixes by the ratio 1% and 3% from cement weight. To study the effect of the total replacement of aggregates and the addition of nanomaterials (NMs) on the properties of HWHSC, to study engineering properties the slump, compressive strength, splitting tensile strength, flexural strength, and modulus of elasticity were applied. Density, chloride permeability, sorptivity coefficient, water permeability, and microstructure tests were also performed. To study the efficiency of shielding against radiation, linear attenuation coefficient, mass attenuation coefficient, mean‐free path, half‐value layer, and tenth‐value layer of different gamma‐ray sources of radiation 137Cs 662 (keV) and 60Co 1332 (keV) were applied. The results showed that the 100% SS and hematite replacement as coarse and fine aggregates with 3% (NS or NT) achieved the best mechanical and transport properties compared to other mixtures. While the highest density of the string containing hematite and SS was achieved with 3% of NT, with a density of 3384 kg/m3. The highest compressive strength of more than 116 MPa was achieved for the included mixture of 3% NS. The highest attenuation of gamma‐ray radiation was achieved with the application of hematite and SS aggregates with 3% of NT.

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Performance of high-strength green concrete under the influence of curing methods, volcanic pumice dust, and hot weather

Cited by 22 publications

References 47 publications

Technogenic Fiber Wastes for Optimizing Concrete

Technogenic Fiber Wastes for Optimizing Concrete

Recent Trends in Advanced Radiation Shielding Concrete for Construction of Facilities: Materials and Properties

Effects of nano titanium and nano silica on high‐strength concrete properties incorporating heavyweight aggregate

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