Effect of nanoparticles on properties of geopolymers designed for well cementing applications

Alvi, Muhammad Awais Ashfaq; Khalifeh, Mahmoud; Belayneh, Mesfin

doi:10.1016/j.petrol.2020.107128

Cited by 58 publications

(16 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Recent studies showed that the addition of nanoparticles to the geopolymer matrix improves the chemical–physical, mechanical and structural characteristics of the alkaline-activated products. Nanomaterials can create intelligent materials with improved rheological and mechanical properties, thanks to their small size and high surface-to-volume ratio [ 94 ]. The addition of these agents, such as nano-silica, nano alumina, TiO 2 , ZnO and graphene oxide, plays a key role in the consolidation of the innovative material, acting as nanofillers, and leading to a reduction of the inner water together with an increase in the compressive strength [ 95 , 96 , 97 , 98 , 99 , 100 ].…”

Section: Synthesis Of Functional Geopolymeric Hybrid Materialsmentioning

confidence: 99%

Geopolymers and Functionalization Strategies for the Development of Sustainable Materials in Construction Industry and Cultural Heritage Applications: A Review

et al. 2022

View full text Add to dashboard Cite

In the last decades, new synthetic hybrid materials, with an inorganic and organic nature, have been developed to promote their application as protective coatings and/or structural consolidants for several substrates in the construction industry and cultural heritage field. In this context, the scientific community paid attention to geopolymers and their new hybrid functional derivatives to design and develop innovative and sustainable composites with better chemical resistance, durability and mechanical characteristics. This review offers an overview of the latest progress in geopolymer-based hybrid nanofunctional materials and their use to treat and restore cultural heritage, as well as their employment in the building and architectural engineering field. In addition, it discusses the influence of some parameters, such as the chemical and physical characteristics of the substrates, the dosage of the alkaline activator, and the curing treatment, which affect their synthesis and performance.

show abstract

Section: Synthesis Of Functional Geopolymeric Hybrid Materialsmentioning

confidence: 99%

Geopolymers and Functionalization Strategies for the Development of Sustainable Materials in Construction Industry and Cultural Heritage Applications: A Review

et al. 2022

View full text Add to dashboard Cite

show abstract

“…As water is evaporated from geopolymer upon reaction, the porous spaces left behind is the source of geopolymer weakening when load is exerted. Any small sized particles that is incorporated into geopolymer matrix will act as filler that fills in these pores, aside from serving other advantages mentioned in the above paragraphs (Saafi et al, 2015;Ashfaq Alvi et al, 2020).…”

Section: Compression Analysis On the Graphene Reinforced Geopolymer Nanocompositesmentioning

confidence: 99%

Mechanical Strength of Graphene Reinforced Geopolymer Nanocomposites: A Review

Tay

Mazlan

2021

Front. Mater.

View full text Add to dashboard Cite

The emergence of high-strength graphene marks a new milestone in the material science field. With only a small percentage inclusion into the matrix system, this organic nanoparticle could tremendously improve the strength in vast arrays of composites. At the same time, there is a growing interest in using the low-cost, lightweight, and high early strength geopolymer as the new binder for concrete. Compared to the traditional Ordinary Portland Cement (OPC), geopolymer emits 80% less CO2 during its production while exerting similar strength. Thus, the geopolymer has the potential to commercialize as new and green concrete. Geopolymer is a mixture of aluminosilicate powders and alkaline solutions. When incorporated with nano-sized graphene, the material forms a composite known as Graphene Reinforced Geopolymer Nanocomposite (GRGN). The addition of graphene enhances the strength of geopolymer, which can further improve its competitiveness. However, this depends on several factors, including the types of graphene, the surface modification of graphene, and the concentration of alkaline solutions. Generally, the presence of graphene alters the porous structure of geopolymer into a substantially filled porous structure, thus increasing compressive strength and flexural strength. On the other hand, Graphene Oxide (GO) undergoes a chemical reduction in the alkaline solution, producing epoxy functional groups. The chemical treatment results in two conditions which are weak interaction between graphene and geopolymer matrix, and better graphene dispersibility in geopolymer matrix. This review also highlights the analytical modelling aspect of GRGN. The dissolution of Si(OH)4 and Al(OH)4- from the aluminosilicate source was consistent with experimental work and analytical modeling, while the dissolution of Si–OH on the surface-modified graphene indicated otherwise. Therefore, this paper will provide an insightful review of the GRGN mechanical properties.

show abstract

“…When nanosized alumina (Al-0450) and liquid hydroxyl functionalized nanotubes (MWCNT-OH) were added to granite waste-based geopolymers (GP), they were uniformly distributed within the geopolymers to form a dense and ductile structure, resulting in enhanced mechanical properties and delayed setting times for the slurries, as shown in Figure 3 [44].…”

Section: ) Compressive Strengthmentioning

confidence: 99%

Recent Advances in the Reutilization of Granite Waste in Various Fields

Wang

Zhan

et al. 2021

J. Mater. Sci. Technol. Res.

View full text Add to dashboard Cite

Quarrying and processing of granite produce large amounts of waste residues. Besides being a loss of resources, improper disposal of these wastes results in pollution of the soil, water and air around the dumpsites. The main components of granite waste are quartz, feldspars and a small amount of biotite. Due to its hard and dense texture, high strength, corrosion resistance and wear resistance, granite waste may be recycled into building materials, composite materials and fine ceramics, effectively improving their mechanical properties and durability. By using the flotation process, high value-added products such as potash feldspar and albite may be retrieved from granite waste. Also, granite waste has the potential for application in soil remediation and sewage treatment. This review presents recent advances in granite waste reutilization, and points out the problems associated with its use, and the related countermeasures, indicating the scale of high value-added reutilization of granite waste.

show abstract

Effect of nanoparticles on properties of geopolymers designed for well cementing applications

Cited by 58 publications

References 44 publications

Geopolymers and Functionalization Strategies for the Development of Sustainable Materials in Construction Industry and Cultural Heritage Applications: A Review

Geopolymers and Functionalization Strategies for the Development of Sustainable Materials in Construction Industry and Cultural Heritage Applications: A Review

Mechanical Strength of Graphene Reinforced Geopolymer Nanocomposites: A Review

Recent Advances in the Reutilization of Granite Waste in Various Fields

Contact Info

Product

Resources

About