Foamed Geopolymer Composites with the Addition of Glass Wool Waste

Kozub, B.; Bazan, Patrycja; Gailitis, Rihards; Korniejenko, Kinga; Mierzwiński, Dariusz

doi:10.3390/ma14174978

Cited by 24 publications

(15 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The pace of climate change that Earth’s inhabitants are struggling with is accelerating more and more, and the effects of these changes are noticeable to everyone. An important direction of development is therefore looking for new, more ecological materials, in particular those based on renewable raw materials [ 4 , 5 , 6 , 7 ]. One of the promising alternatives may be geopolymerization technologies with a much lower carbon footprint compared to traditional building materials [ 21 ].…”

Section: Discussionmentioning

confidence: 99%

“…One of them may be geopolymers. The production of geopolymers releases much smaller amounts of CO 2 into the atmosphere, and it can be a real alternative to waste management from the energy or metallurgical sector (for example, fly ash, slag) or also other sectors such as the construction industry (for example, construction and demolition waste) or mining (for example, different mine tailings) [ 4 , 5 , 6 , 7 ].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Mechanical and Fracture Properties of Long Fiber Reinforced Geopolymer Composites

et al. 2021

Self Cite

View full text Add to dashboard Cite

The aim of the article is to analyze the structure and mechanical properties in terms of the cracking mechanics of geopolymer composites based on fly ash and river sand, as well as metakaolin and river sand with three types of reinforcement material: glass fiber, carbon fiber, and aramid fiber, in terms of their use in additive manufacturing. Geopolymer composites were reinforced with fibers in a volume ratio of 0.5%, 1.0%, and 2.0%. Subsequently, these samples were subjected to bending strength tests in accordance with the European standard EN 12390-3. The addition of fibers significantly improved the bending strength of all composites made of metakaolin and sand. The reinforcement with aramid fiber in the amount of 2.0% resulted in more than a 3-fold increase in strength compared to the reinforcement-free composites. An analysis of the morphology of the fibers was carried out on the basis of photos taken from an electron microscope. The correct addition of fibers changes the nature of the fracture from brittle to more ductile and reduces the number of cracks in the material.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mechanical and Fracture Properties of Long Fiber Reinforced Geopolymer Composites

et al. 2021

Self Cite

View full text Add to dashboard Cite

show abstract

“…In recent years, geopolymer materials have aroused more and more interest both in the scientific community and in various areas of industry, where they can be used [ 1 , 2 , 3 ]. Geopolymers belong to the group of synthetic inorganic polymers, which are obtained in the process of alkaline activation of aluminosilicates, e.g., fly ash, metakaolin, red mud, and others [ 4 , 5 , 6 ].…”

Section: Introductionmentioning

confidence: 99%

An Investigation of the Ground Walnut Shells’ Addition Effect on the Properties of the Fly Ash-Based Geopolymer

Kozub

Castro-Gomes

2022

Materials

Self Cite

View full text Add to dashboard Cite

The development of geopolymers is in line with the requirements of sustainable development. Creating a new type of material from various industrial and bio-based wastes and by-products can lead to reduced energy consumption, reduced waste generation, reduced global CO2 emissions, as well as reduced resource extraction of natural resources. In this study, geopolymer composites based on class F fly ash with the addition of fine quartz sand and ground walnut shells used as a substitute for sand were examined. The study focused on investigating the effects of different weight percentages of ground walnut shells and quartz sand on the density and strength properties, including compressive and flexural strength, thermal conductivity, efflorescence formation, and water absorption of the fly ash-based geopolymer composites. The microstructure of the studied geopolymers was also analyzed using a scanning electron microscope (SEM). It was observed that the addition of ground walnut shells contributes to the decrease in density and mechanical properties, increase in absorption properties, and decrease in porosity of fly ash-based geopolymers. Furthermore, the addition of ground walnut shells allows for a significant reduction in efflorescence on the surface of the tested geopolymer composites. Moreover, partial or complete replacement of sand by ground walnut shells in geopolymer composites based on fly ash allows for a significant reduction in their thermal conductivity, which makes it possible to use these composites as insulation materials.

show abstract

“…The geopolymer precursor material may be an appropriate replacement to the traditional Portland cement [ 80 , 81 ]. It contains geological source material with silicon and aluminum content and a caustic activator to form a binder [ 82 , 83 ]. In 2017, a study revealed that waste rock wool is an ideal replacement for slag and fly ash from iron and metal to produce geopolymer concrete due to its high silicon and aluminum content [ 34 ].…”

Section: Repurposing As Fillers In Compositesmentioning

confidence: 99%

Waste Mineral Wool and Its Opportunities—A Review

et al. 2021

View full text Add to dashboard Cite

Massive waste rock wool was generated globally and it caused substantial environmental issues such as landfill and leaching. However, reviews on the recyclability of waste rock wool are scarce. Therefore, this study presents an in-depth review of the characterization and potential usability of waste rock wool. Waste rock wool can be characterized based on its physical properties, chemical composition, and types of contaminants. The review showed that waste rock wool from the manufacturing process is more workable to be recycled for further application than the post-consumer due to its high purity. It also revealed that the pre-treatment method—comminution is vital for achieving mixture homogeneity and enhancing the properties of recycled products. The potential application of waste rock wool is reviewed with key results emphasized to demonstrate the practicality and commercial viability of each option. With a high content of chemically inert compounds such as silicon dioxide (SiO2), calcium oxide (CaO), and aluminum oxide (Al2O3) that improve fire resistance properties, waste rock wool is mainly repurposed as fillers in composite material for construction and building materials. Furthermore, waste rock wool is potentially utilized as an oil, water pollutant, and gas absorbent. To sum up, waste rock wool could be feasibly recycled as a composite material enhancer and utilized as an absorbent for a greener environment.

show abstract

Foamed Geopolymer Composites with the Addition of Glass Wool Waste

Cited by 24 publications

References 38 publications

Mechanical and Fracture Properties of Long Fiber Reinforced Geopolymer Composites

Mechanical and Fracture Properties of Long Fiber Reinforced Geopolymer Composites

An Investigation of the Ground Walnut Shells’ Addition Effect on the Properties of the Fly Ash-Based Geopolymer

Waste Mineral Wool and Its Opportunities—A Review

Contact Info

Product

Resources

About