Mechanical and durability properties of ultra-high performance concrete incorporated with various nano waste materials under different curing conditions

Faried, A. Serag; Mostafa, Sahar A.; Tayeh, Bassam A.; Tawfik, Taher A.

doi:10.1016/j.jobe.2021.102569

Cited by 90 publications

(52 citation statements)

References 57 publications

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“…e chemical composition values obtained in the clinker were agreed with the values reported by Bouzoubaâ and Fournier [63]; Hossain [64]; and Turanli et al [65]. Faried et al [13,16] identified the chemical compositions of nano-rice husk ash (RHA) by calcining at different temperatures from 300 °C to 900 °C. ey examined that the silicious contents of the RHA samples were significantly increased with increasing burning degree.…”

Section: Materials Characterizationsupporting

confidence: 85%

“…Pozzolans materials are supplementary cementitious materials derived from industrial and agricultural wastes and possess pozzolanic properties in concrete production. In recent years, the use of solid waste resulting from agriculture as pozzolans in the manufacture of blended mortars and concrete has been the focus of new researches [6][7][8][9][10][11][12][13], and they have been showed that agricultural waste products could be a partial replacement material to cement and aggregates in concrete and mortar. Cotton stalk ash (CSA) and palm leaf ash (PLA) had higher specific gravity and surface area, and the inclusion of it in concrete as recycled aggregates and light-weight coarse aggregate (LWCA) in concrete would be the unit weight of concrete [14,15].…”

Section: Introductionmentioning

confidence: 99%

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Effect of Agricultural Crop Wastes as Partial Replacement of Cement in Concrete Production

Zerihun

Yehualaw

2022

Advances in Civil Engineering

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The main goal of this review paper was to study the physical and chemical properties of agricultural crop wastes and their potentials to partially replace in production of mortar and concrete. Bamboo leaves’ ashes (BLA), banana leaves’ ashes (BNLA), corncob leaves’ ashes (CCA), groundnut ashes (GNA), rice husk ashes (RHA), and sugarcane bagasse ashes (SCBA) were selected to be reviewed. The chemical composition of these agricultural wastes revealed that the they are basically composed of alumino-siliceous materials conforming the requirement of pozzolanic materials. Compared with cement, they have finer particle size and higher surface area. The effect of partial replacement of cement by BLA, BNLA, CCA, GNA, RHA, and SCBA on the properties of fresh concrete (consistency, workability, and setting time), mechanical properties (compressive and tensile strength), microstructure (scanning electron microscopy, derivative thermogravimetry, and X-ray diffraction), and durability (ultrapulse velocity, water absorption, and sulphate attack) of concrete was recapped. The inclusion of BLA, CCA, RHA, and SCBA as partial replacement of cement reduced the workability of concrete due to their finer particle size. The mechanical performance of concrete showed enhancement with partial replacement of cement by BLA, RHA, and SCBA due to the involvement of amorphous silica in secondary reaction to produce densified tetrahedral gel. Consequently, uniform and denser morphology was formed, and durability was enhanced as densification of hydrated gel increased. In general, the review exposed that agricultural crop wastes satisfy pozzolanic material properties and have strong potential to replace cement up to 10% without compromising the performance of concrete.

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Section: Materials Characterizationsupporting

confidence: 85%

Section: Introductionmentioning

confidence: 99%

Effect of Agricultural Crop Wastes as Partial Replacement of Cement in Concrete Production

Zerihun

Yehualaw

2022

Advances in Civil Engineering

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“…With the increase of cement content, the porosity of WDC particles decreases significantly. It indicates that doping appropriate WDC is conducive to the densification of the early microstructure of the system, and the existence of C-S–H and Aft generated by the secondary hydration of WDC is also confirmed by XRD analysis (Wang et al 2019 ; Faried et al 2021 ). The results show that the volcanic ash reaction of WDC generates a large number of AFt crystals interspersed in the C-S–H gel, so that the pores are filled to form a more compact microstructure.…”

Section: Resultsmentioning

confidence: 86%

“…At present, some studies only focus on the alternative methods of resource utilization of these wastes in the resource utilization of WDC, such as the production of building materials, such as bricks (George and Antonis 2021 ; Mojtaba et al 2020 ; Symeonides et al 2019 ; Ayati et al 2019 ; Dai et al 2019 ), concrete (Yang et al 2021 ; Mohsen et al 2021 ; Li et al 2020a , b ; Amelung al. 2020 ; Ma et al 2019 ), aggregates (Bamdad et al 2019 ; Siddique et al 2021 ; Sundis et al 2021 ; Moreno-Maroto et al 2018 ; Prachasaree et al 2020 ), glass materials (Baino and Ferraris 2019 ; Stoch et al 2018 ; Grilo et al 2019 ; Alves et al 2017 ), slag-red mud cementitious materials (Ban et al 2018 ; Faried et al 2021 ; Mymrin et al 2017 ; Ye et al 2017 ), and ceramic materials (Sun et al 2021 ; Cheng et al 2018 ; Ren et al 2019 ; Cao et al 2019 ).…”

Section: Introductionmentioning

confidence: 99%

Human carcinogenic risk analysis and utilization of shale gas water-based drilling cuttings in road materials

Wang

Chen

Huang³

et al. 2022

Environ Sci Pollut Res

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Water-based drilling cuttings (WDC) generated during shale gas development will endanger human health and ecological security. The modern analytical techniques are used to analyze the organic pollutants in WDC, and the human health and ecological security risks of harmful pollutants in WDC under specific scenarios are evaluated. The results showed that the content of organic pollutants in WDC was evaluated by human health and safety risk assessment. The comprehensive carcinogenic risks of all exposure pathways of single pollutant benzo(a)anthracene, benzo(a)pyrene, benzo(k)fluoranthene, and indeno(1,2,3-cd)pyrene were acceptable. However, the cumulative carcinogenic risk of exposure to dibenzo(a,h)anthracene particles via skin exposure was not acceptable. It was considered that only dibenzo(a,h)anthracene had carcinogenic effect, and the risk control limit of dibenzo(a,h)anthracene in WDC was 1.8700 mg/kg by calculation. As well as, the “WDC-cement” gel composite structure was deeply analyzed, and the physical and chemical properties and mechanism of organic pollutants in cement solidified WDC were analyzed, which provided theoretical support for the study of WDC pavement cushion formula. Based on the above conclusions and combined with the actual site, by studying and adjusting the formula of WDC pavement cushion, the WDC pavement cushion was finally designed by 6% cement + 50% WDC + 44% crushed stone. The 7d unconfined compressive strength met the requirements of the Chinese standard “ Technical Guidelines for Construction of Highway Roadbases ” (JTG/T F20-2015). Also, the process route of WDC as road cushion product was sampled and analyzed. In addition, the leaching concentration of main pollutants all met the relevant standards of China. Therefore, this study can provide a favorable way for the efficient, safe, and environmentally friendly utilization of WDC, and ensure the ecological environment safety and human health safety of WDC in resource utilization.

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“…Furthermore, incorporating microfibers into the UHPC matrix significantly enhances its flexural strength, ductility, and toughness [6][7][8]. Fiber inclusion can restrain the coalescence, growth, and propagation of microcracks and thus, mitigate brittle fractures [9][10][11]. Additionally, fibers increase the toughness energy owing to the crack bridging effect [12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Effect of Polymers on Behavior of Ultra-High-Strength Concrete

et al. 2022

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The development of ultra-high-performance concrete (UHPC) is still practically limited due to the scarcity of robust mixture designs and sustainable sources of local constituent materials. This study investigates the engineering characteristics of Styrene Butadiene Rubber (SBR) polymeric fiber-reinforced UHPC with partial substitution of cement at 0, 5 and 20 wt.% with latex polymer under steam and air curing techniques. The compressive and tensile strengths along with capillary water absorption and sulfate resistance were measured to evaluate the mechanical and durability properties. Scanning Electron Microscopy (SEM) was carried out to explore the microstructure development and hydration products in the designed mixtures under different curing regimes. The results indicated that the mixtures incorporating 20 wt.% SBR polymer achieved superior compressive strength at later ages. Additionally, the tensile strength of the polymeric UHPC without steel fibers and with 20% polymers was enhanced by 50%, which promotes the development of novel UHPC mixtures in which steel fibers could be partially replaced by polymer, while enhancing the tensile properties.

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Mechanical and durability properties of ultra-high performance concrete incorporated with various nano waste materials under different curing conditions

Cited by 90 publications

References 57 publications

Effect of Agricultural Crop Wastes as Partial Replacement of Cement in Concrete Production

Effect of Agricultural Crop Wastes as Partial Replacement of Cement in Concrete Production

Human carcinogenic risk analysis and utilization of shale gas water-based drilling cuttings in road materials

Effect of Polymers on Behavior of Ultra-High-Strength Concrete

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