Waste ceramic powder incorporated alkali activated mortars exposed to elevated Temperatures: Performance evaluation

Huseien, Ghasan Fahim; Sam, Abdul Rahman Mohd; Mirza, Jahangir; Tahir, Mahmood Md.; Asaad, Mohammad Ali; Ismail, Mohammad; Shah, Kwok Wei

doi:10.1016/j.conbuildmat.2018.07.226

Cited by 95 publications

(29 citation statements)

References 30 publications

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“…However, at 900 °C, all the mixes’ microstructures were substantially damaged, leading to the decay of the C-S-H gels. Current observations are consistent with other reports [ 51 , 52 ].…”

Section: Resultssupporting

confidence: 94%

Performance Evaluation of Modified Rubberized Concrete Exposed to Aggressive Environments

et al. 2021

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Recycling of the waste rubber tire crumbs (WRTCs) for the concretes production generated renewed interest worldwide. The insertion of such waste as a substitute for the natural aggregates in the concretes is an emergent trend for sustainable development towards building materials. Meanwhile, the enhanced resistance of the concrete structures against aggressive environments is important for durability, cost-saving, and sustainability. In this view, this research evaluated the performance of several modified rubberized concretes by exposing them to aggressive environments i.e., acid, and sulphate attacks, elevated temperatures. These concrete (12 batches) were made by replacing the cement and natural aggregate with an appropriate amount of the granulated blast furnace slag (GBFS) and WRTCs, respectively. The proposed mix designs’ performance was evaluated by several measures, including the residual compressive strength (CS), weight loss, ultrasonic pulse velocity (UPV), microstructures, etc. Besides, by using the available experimental test database, an optimized artificial neural network (ANN) combined with the particle swarm optimization (PSO) was developed to estimate the residual CS of modified rubberized concrete after immersion one year in MgSO4 and H2SO4 solutions. The results indicated that modified rubberized concrete prepared by 5 to 20% WRTCs as a substitute to natural aggregate, provided lower CS and weight lose expose to sulphate and acid attacks compared to control specimen prepared by ordinary Portland cement (OPC). Although the CS were slightly declined at the elevated temperature, these proposed mix designs have a high potential for a wide variety of concrete industrial applications, especially in acid and sulphate risk.

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Section: Resultssupporting

confidence: 94%

Performance Evaluation of Modified Rubberized Concrete Exposed to Aggressive Environments

et al. 2021

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“…The outcomes have made it known that a greater quantity of fine ceramic particles under 90 mm and gradual distribution of other fractions from 150 to 710 mm leads to enhanced dimensional stability subsequently exposed to heat. Potassium-based geopolymers reinforced with fine ceramic particles divulged an unvarying flexural strength of 12 MPa and compressive strength of 90 MPa, both in an early state and following exposure at 1000 • C. According to Huseien et al [21], the residual compressive strength encountered was directly proportional to the WCP quantity. Upon increasing WCP substituted GBFS from 50 to 70%, the values for residual strength were augmented from 17.7 to 40.1%, correspondingly.…”

Section: Residual Mechanical Strength After Elevated Temperature Exposurementioning

confidence: 99%

“…On the basis of this experiment, it was made known that complex-shaped metakaolinite-based geopolymers can effortlessly be manufactured through the technique applied. Huseien et al [21] have represented the XRD patterns of geopolymer materials previous to and after elevating the temperature from 27 • C and raising it to 900 • C. Before and after the exposure of the early specimen to the elevated temperature of below 400 • C, an appearance of semicrystallized alumina silicate gel and quartz (Q) was encountered. The broader peaks of each geopolymer mortar component were visible in the region.…”

Section: Figure 3 Xrd Analysis Of (A) Red Mudmentioning

confidence: 99%

Assessment of the Suitability of Ceramic Waste in Geopolymer Composites: An Appraisal

Luhar

Abdullah

et al. 2021

Materials

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Currently, novel inorganic alumino-silicate materials, known as geopolymer composites, have emerged swiftly as an ecobenevolent alternative to contemporary ordinary Portland cement (OPC) building materials since they display superior physical and chemical attributes with a diverse range of possible potential applications. The said innovative geopolymer technology necessitates less energy and low carbon footprints as compared to OPC-based materials because of the incorporation of wastes and/or industrial byproducts as binders replacing OPC. The key constituents of ceramic are silica and alumina and, hence, have the potential to be employed as an aggregate to manufacture ceramic geopolymer concrete. The present manuscript presents a review of the performance of geopolymer composites incorporated with ceramic waste, concerning workability, strength, durability, and elevated resistance evaluation.

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“…It also improved the performance in terms of sulfate and acid environments, as well as decreased energy consumption, financial cost and CO 2 emission. The same authors also studied the performance of this material when exposed to elevated temperatures, concluding that the mechanical strength was enhanced with the increase in ceramic powder content, from 50 to 70% (18).…”

Section: Introductionmentioning

confidence: 99%

Alkali activation of recycled ceramic aggregates from construction and demolition wastes

Gaibor

Coelho²,

Leitão

et al. 2020

Mater. construcc.

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Environmental concerns are becoming increasingly more significant worldwide, thus creating the urgent need for new sustainable alternatives in the industrial sector. The present study assesses the fundamental properties of ceramic residue (CR) originated by demolition operations, specifically, the floor and wall tiles and sanitaryware furniture, for further incorporation in the construction sector, namely in alkali-activated binders, mixed with other better-known precursors - fly ash (FA) and ladle furnace slag (LFS). Different CR/FA and CR/LFS weight ratios were considered and analyzed by mechanical behavior and microstructural analysis, which included uniaxial compression strength (UCS) tests, Scanning Electron Microscopy (SEM), X-ray Energy Dispersive Analyser (EDX), X-ray diffraction (XRD) and Fourier Transform Infrared Spectroscopy (FTIR). Results obtained showed that the combination of CR and FA or LFS, activated with sodium silicate, produced UCS values higher than 20 MPa and 59 MPa, respectively, after 90 days curing.

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Waste ceramic powder incorporated alkali activated mortars exposed to elevated Temperatures: Performance evaluation

Cited by 95 publications

References 30 publications

Performance Evaluation of Modified Rubberized Concrete Exposed to Aggressive Environments

Performance Evaluation of Modified Rubberized Concrete Exposed to Aggressive Environments

Assessment of the Suitability of Ceramic Waste in Geopolymer Composites: An Appraisal

Alkali activation of recycled ceramic aggregates from construction and demolition wastes

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