Mechanical and Microstructural Characterization of Quarry Rock Dust Incorporated Steel Fiber Reinforced Geopolymer Concrete and Residual Properties after Exposure to Elevated Temperatures

Ibraheem, Muhammad; Butt, Faheem; Waqas, Rana Muhammad; Hussain, Khadim; Tufail, Rana Faisal; Ahmad, Naveed; Usanova, Kseniia; Musarat, Muhammad Ali

doi:10.3390/ma14226890

Cited by 14 publications

(7 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hardened concrete properties are explained in Table 4 [ 16 , 44 , 56 , 95 ]. Figure 7 represents flexural strength [ 10 , 89 , 115 ].…”

Section: Resultsmentioning

confidence: 99%

“…The kind of binder and curing conditions also affect how much fibre-reinforced geopolymer composites shrink. Figure 13 represents drying shrinkage in micro strains [ 10 ].…”

Section: Resultsmentioning

confidence: 99%

“…The results of [ 91 ] demonstrated that when the fibre length increased from 3 mm to 19 mm, the moisture content likewise climbed. Figure 14 shows the moisture content for different volumes of fibres added [ 10 ]. More moisture absorption was accomplished by increasing the fibre content in the FLGC samples from 0.5 to 2.0%.…”

Section: Resultsmentioning

confidence: 99%

“…Due to greater SiO 2 and Al 2 O 3 concentrations and widespread availability, one of the current pozzolanic outcome materials is FA, which may be utilised as a binder material in concrete, which subsequently goes through the polycondensation process [ 7 ]. Numerous researchers have demonstrated that FA enhances mechanical capabilities, microstructural compositions, and durability [ 8 , 9 , 10 , 11 , 12 ]. The compressive strength of cement decreases when more than half of fly ash is substituted, according to prior research [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

A Review on Fresh, Hardened, and Microstructural Properties of Fibre-Reinforced Geopolymer Concrete

Baskar¹,

Annadurai²,

Sekar³

et al. 2023

Polymers

View full text Add to dashboard Cite

Alternative eco-friendly and sustainable construction methods are being developed to address growing infrastructure demands, which is a promising field of study. The development of substitute concrete binders is required to alleviate the environmental consequences of Portland cement. Geopolymers are very promising low-carbon, cement-free composite materials with superior mechanical and serviceability properties, compared to Ordinary Portland Cement (OPC) based construction materials. These quasi-brittle inorganic composites, which employ an “alkali activating solution” as a binder agent and industrial waste with greater alumina and silica content as its base material, can have their ductility enhanced by utilising the proper reinforcing elements, ideally “fibres”. By analysing prior investigations, this paper explains and shows that Fibre Reinforced Geopolymer Concrete (FRGPC) possesses excellent thermal stability, low weight, and decreased shrinking properties. Thus, it is strongly predicted that fibre-reinforced geopolymers will innovate quickly. This research also discusses the history of FRGPC and its fresh and hardened properties. Lightweight Geopolymer Concrete (GPC) absorption of moisture content and thermomechanical properties formed from Fly ash (FA), Sodium Hydroxide (NaOH), and Sodium Silicate (Na2SiO3) solutions, as well as fibres, are evaluated experimentally and discussed. Additionally, extending fibre measures become advantageous by enhancing the instance’s long-term shrinking performance. Compared to non-fibrous composites, adding more fibre to the composite often strengthens its mechanical properties. The outcome of this review study demonstrates the mechanical features of FRGPC, including density, compressive strength, split tensile strength, and flexural strength, as well as its microstructural properties.

show abstract

“…Hardened concrete properties are explained in Table 4 [ 16 , 44 , 56 , 95 ]. Figure 7 represents flexural strength [ 10 , 89 , 115 ].…”

Section: Resultsmentioning

confidence: 99%

“…The kind of binder and curing conditions also affect how much fibre-reinforced geopolymer composites shrink. Figure 13 represents drying shrinkage in micro strains [ 10 ].…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Review on Fresh, Hardened, and Microstructural Properties of Fibre-Reinforced Geopolymer Concrete

Baskar¹,

Annadurai²,

Sekar³

et al. 2023

Polymers

View full text Add to dashboard Cite

show abstract

“…At present, the fibers used in composites mainly include natural fibers, metal fibers [ 21 , 22 ], inorganic fibers [ 23 , 24 , 25 ] and synthetic fibers [ 26 , 27 , 28 ]. Among them, there are many studies on synthetic-fiber-reinforced geopolymers, such as polyvinyl alcohol (PVA), polypropylene (PP), etc., but their production process pollutes the environment and faces difficulties in meeting the requirements of sustainable development [ 29 , 30 ].…”

Section: Introductionmentioning

confidence: 99%

Durability of Cellulosic-Fiber-Reinforced Geopolymers: A Review

Liu

2022

Molecules

View full text Add to dashboard Cite

Geopolymers have high early strength, fast hardening speed and wide sources of raw materials, and have good durability properties such as high temperature resistance and corrosion resistance. On the other hand, there are abundant sources of plant or cellulose fibers, and it has the advantages of having a low cost, a light weight, strong adhesion and biodegradability. In this context, the geopolymer sector is considering cellulose fibers as a sustainable reinforcement for developing composites. Cellulosic-fiber-reinforced geopolymer composites have broad development prospects. This paper presents a review of the literature research on the durability of cellulosic-fiber-reinforced geopolymer composites in recent years. In this paper, the typical properties of cellulose fibers are summarized, and the polymerization mechanism of geopolymers is briefly discussed. The factors influencing the durability of cellulosic-fiber-reinforced geopolymer composites were summarized and analyzed, including the degradation of fibers in a geopolymer matrix, the toughness of fiber against matrix cracking, the acid resistance, and resistance to chloride ion penetration, high temperature resistance, etc. Finally, the influence of nanomaterials on the properties of geopolymer composites and the chemical modification of fibers are analyzed, and the research on cellulosic-fiber-reinforced geopolymer composites is summarized.

show abstract

Predictive modeling of compressive strength of geopolymer concrete before and after high temperature applying machine learning algorithms

Yang,

Li,

Jiang

2024

Structural Concrete

View full text Add to dashboard Cite

Geopolymer concrete (GPC) is regarded as a more environmentally friendly construction material compared to conventional cement concrete, and its exceptional environmental capabilities are highly favored by the contemporary construction sector. Studying the mechanical properties of GPC upon exposure to elevated temperatures is a crucial aspect of evaluating structural damage and enhancing fire safety measures. Nevertheless, properly predicting the compressive performance of GPC upon exposure to high temperatures remains a formidable task. This study employs various machine learning techniques, such as single models, integrated models, neural network models, and hybrid models, to predict the compressive strength of GPC from room temperature to 1000°C. The results of each model are summarized, and the significant factors influencing compressive strength are analyzed to evaluate the thermal behavior of GPC. These findings offer recommendations for future in‐depth machine learning applications in the GPC field. The K‐fold cross‐validation shows that the hybrid model genetic algorithm–random forest has the highest prediction accuracy, while the single model performs the worst. Other models also provide favorable prediction results. The feature importance analysis revealed that the compressive strength of GPC is primarily influenced by heating temperature (HT) and hydroxide ion concentration, with fly ash and ground granulated blast furnace slag content being secondary factors. The partial dependence plot‐2D analysis indicates that as HTs increase, the influence of other variables on GPC compressive strength decreases significantly. These findings can inform the design of GPC mixing ratios for high‐temperature exposure. The machine learning technique proposed in this study accurately predicts GPC compressive strength across various temperatures, reducing experimental time and costs while promoting the GPC sector.

show abstract

Mechanical and Microstructural Characterization of Quarry Rock Dust Incorporated Steel Fiber Reinforced Geopolymer Concrete and Residual Properties after Exposure to Elevated Temperatures

Cited by 14 publications

References 53 publications

A Review on Fresh, Hardened, and Microstructural Properties of Fibre-Reinforced Geopolymer Concrete

A Review on Fresh, Hardened, and Microstructural Properties of Fibre-Reinforced Geopolymer Concrete

Durability of Cellulosic-Fiber-Reinforced Geopolymers: A Review

Predictive modeling of compressive strength of geopolymer concrete before and after high temperature applying machine learning algorithms

Contact Info

Product

Resources

About