Strength and porosity characterizations of blended biomass wood ash-fly ash-based geopolymer mortar

Abdulkareem, Omar A.; Matthews, John C.; Bakri, A.M. Mustafa Al

doi:10.1063/1.5080909

Cited by 5 publications

(11 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Wood ash has larger and more irregular particles and larger specific surface areas compared to Portland cement [ 30 , 34 , 35 , 36 , 37 ]. Moreover, Abdulkareem et al [ 38 ] observed wood fly ash particles have higher surface porosity and are more angular than fly ash particles ( Figure 2 ). The ranges of the specific surface area, mean particle size density, and pH values of various wood ashes reported in the literature are given in Figure 3 .…”

Section: Characteristics Of Wood Ashmentioning

confidence: 99%

See 1 more Smart Citation

Wood Ash as Sustainable Alternative Raw Material for the Production of Concrete—A Review

et al. 2023

View full text Add to dashboard Cite

Different ecological binders have been used to minimize the negative effects of cement production and use on the environment. Wood ash is one of these alternative binders, and there has been increasing research related to this topic recently. The wood ash utilized in the literature primarily originates from power plants and local bakeries, and predominantly wood fly ash is used. This review paper examines the use of wood ash as an ecological binder in two different applications: as a cement replacement and as an alkali-activated material. Studies have shown that while increased wood ash content in concrete and mortars can have negative effects on strength and durability, it is still a promising and developable material. Depending on the chemical composition of the wood ash, the strength and durability properties of concrete might be slightly improved by utilizing wood ash as a replacement for cement, with an optimal replacement level of 10–20%. However, there is a need for more research regarding the effects of wood ash on the durability of cement-based materials and its use in alkali-activated materials. Overall, this review provides a comprehensive overview of the properties of wood ash and its potential applications in conventional concrete and mortars, as well as in alkali-activated materials.

show abstract

Section: Characteristics Of Wood Ashmentioning

confidence: 99%

“… FESEM images of ( a ) wood ash and ( b ) fly ash (reprinted from Abdulkareem et al [ 38 ], with permission of AIP Publishing). …”

Section: Figurementioning

confidence: 99%

Wood Ash as Sustainable Alternative Raw Material for the Production of Concrete—A Review

et al. 2023

View full text Add to dashboard Cite

show abstract

“…Based on this reality and the projected scenario, the cement and concrete industry has been developing a series of strategies and innovations to reduce CO 2 emissions. One of these innovations is the production of geopolymers to be used as alternative materials to replace all or part of the ordinary Portland cement used in construction, which is obtained either from metakaolin or from industrial, forestry, and agricultural waste with a high aluminosilicates content [ 12 , 13 , 14 , 15 ]. A geopolymer is a binder of mineral origin (inorganic) obtained from the dissolution [ 16 , 17 , 18 , 19 ] and subsequent polycondensation of ashes rich in aluminosilicates in the presence of an alkaline solution (hydroxides and silicates of alkali metals, Na and K) [ 13 , 20 , 21 ].…”

Section: Introductionmentioning

confidence: 99%

“…Additionally, the use of mixed geopolymers, which are generated by the combination of two or more types of chemically stabilized industrial wastes or ashes, has been considered [ 22 ]. The use of this type of materials can reduce CO 2 production by up to 90%, while preserving or even improving their mechanical properties (e.g., porosity, structure, compressive strength, water absorption, and durability) [ 12 , 23 ].…”

Section: Introductionmentioning

confidence: 99%

“…Likewise, it is highlighted that different conditions can be used during the process of obtaining geopolymers, such as the type of curing, humidity control, temperature, concentration and proportions of alkaline activators, type and quantity of raw material or proportions of starting materials (in case of mixtures), which will influence the properties of the final product. Among the findings, it can be mentioned that the increase in SiO 2 /Al 2 O 3 ratios positively influences the mechanical compressive strength of geopolymers [ 15 ], and it was found that the inclusion of 5–15% wood ash in the process can generate greater strength and durability depending on the age (aging time) of 3–7 days as a consequence of the formation of gels and minerals that increase alkalinity [ 12 ]. Research has also been conducted on the effects of the solid–liquid ratio and the alkaline activator in the synthesis of pure geopolymers.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The Present State of the Use of Waste Wood Ash as an Eco-Efficient Construction Material: A Review

Martínez‐García

Jagadesh²,

Zaid³

et al. 2022

Materials

View full text Add to dashboard Cite

A main global challenge is finding an alternative material for cement, which is a major source of pollution to the environment because it emits greenhouse gases. Investigators play a significant role in global waste disposal by developing appropriate methods for its effective utilization. Geopolymers are one of the best options for reusing all industrial wastes containing aluminosilicate and the best alternative materials for concrete applications. Waste wood ash (WWA) is used with other waste materials in geopolymer production and is found in pulp and paper, wood-burning industrial facilities, and wood-fired plants. On the other hand, the WWA manufacturing industry necessitates the acquisition of large tracts of land in rural areas, while some industries use incinerators to burn wood waste, which contributes to air pollution, a significant environmental problem. This review paper offers a comprehensive review of the current utilization of WWA with the partial replacement with other mineral materials, such as fly ash, as a base for geopolymer concrete and mortar production. A review of the usage of waste wood ash in the construction sector is offered, and development tendencies are assessed about mechanical, durability, and microstructural characteristics. The impacts of waste wood ash as a pozzolanic base for eco-concreting usages are summarized. According to the findings, incorporating WWA into concrete is useful to sustainable progress and waste reduction as the WWA mostly behaves as a filler in filling action and moderate amounts of WWA offer a fairly higher compressive strength to concrete. A detail study on the source of WWA on concrete mineralogy and properties must be performed to fill the potential research gap.

show abstract

Lime-activated one-part geopolymer mortars from construction, demolition and industrial wastes

Kogbara,

Al-Zubi,

Mortada

et al. 2024

Results in Engineering

View full text Add to dashboard Cite

Strength and porosity characterizations of blended biomass wood ash-fly ash-based geopolymer mortar

Cited by 5 publications

References 8 publications

Wood Ash as Sustainable Alternative Raw Material for the Production of Concrete—A Review

Wood Ash as Sustainable Alternative Raw Material for the Production of Concrete—A Review

The Present State of the Use of Waste Wood Ash as an Eco-Efficient Construction Material: A Review

Lime-activated one-part geopolymer mortars from construction, demolition and industrial wastes

Contact Info

Product

Resources

About