Long-Term Performance of Cement Composites with Wood Biomass Ash

Carević, Ivana; Štirmer, Nina; Bajto, Jelena Šantek; Jurić, Karmen Kostanić

doi:10.1007/978-3-030-76551-4_26

Cited by 2 publications

(3 citation statements)

References 17 publications

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“…There is a consensus that workability decreases with increasing ash ratio in blended cement [ 6 , 20 , 24 , 58 , 68 , 69 ]. Berra et al [ 24 ] identified that the reduction in workability of concrete containing wood fly ash is attributed to the porous wood fly ash particles’ irregular shape and higher specific surface area, which differ from those of Portland cement particles.…”

Section: Properties Of Concrete and Mortar Containing Wood Ashmentioning

confidence: 99%

“…The workability can be enhanced by the addition of a superplasticizer. Carević et al [ 68 ] compared the workability of samples with 5, 10, and 15 wt% cement replacement by woody biomass ash. A decrease in workability was observed with increasing wood ash ratio, which the authors related to the porous particle microstructure of wood ash.…”

Section: Properties Of Concrete and Mortar Containing Wood Ashmentioning

confidence: 99%

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

et al. 2023

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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.

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Section: Properties Of Concrete and Mortar Containing Wood Ashmentioning

confidence: 99%

Section: Properties Of Concrete and Mortar Containing Wood Ashmentioning

confidence: 99%

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

et al. 2023

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“…Compared to Portland cement, wood ash has larger, irregular, and more porous particles with a larger specific surface. Incorporation of wood ash usually decreases workability [9,34,38,42] of cement-based materials and results in slightly lower or improved mechanical properties [41,43,44]. A Portland cement replacement by 10-20 wt% with wood ash was suggested as optimum [34,43,45,46].…”

Section: Introductionmentioning

confidence: 99%

The Effects of Partial Replacement of Ground Granulated Blast Furnace Slag by Ground Wood Ash on Alkali-Activated Binder Systems

Teker Ercan,

Cwirzen,

Habermehl-Cwirzen

2023

Materials

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Cement production contributes significantly to carbon dioxide emissions. Alkali-activated materials offer an environmentally friendly alternative due to their comparable strength, durability and low-carbon emissions while utilizing wastes and industrial by-products. Wood ash is a waste material that shows promising results as a partial replacement for Portland cement and precursors in alkali-activated systems. The aim of this study was to examine the effect of ground wood ash on the mechanical properties of alkali-activated mortars. Wood ash was incorporated as a 0 wt%, 10 wt% and 20 wt% partial replacement for ground granulated blast furnace slag (GGBFS). The wood ashes were ground in a planetary ball mill for 10 and 20 min. Sodium silicate (Na2SiO3), sodium carbonate (Na2CO3), and sodium hydroxide (NaOH) were used as alkali activators. The results demonstrated that ground wood ash improved the mechanical properties of alkali-activated systems compared to untreated wood ash. However, the incorporation of wood ash increased the porosity of the binder matrix.

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Long-Term Performance of Cement Composites with Wood Biomass Ash

Cited by 2 publications

References 17 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 Effects of Partial Replacement of Ground Granulated Blast Furnace Slag by Ground Wood Ash on Alkali-Activated Binder Systems

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