A Review on Strength and Durability Properties of Wooden Ash Based Concrete

Al-Kharabsheh, B.; Arbili, Mohamed Moafak; Majdi, Ali; Ahmad, Jawad; Deifalla, Ahmed Farouk; Hakamy, A.

doi:10.3390/ma15207282

Cited by 17 publications

(6 citation statements)

References 52 publications

(68 reference statements)

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“…Therefore, from the results of the slump test and the air content test, it can be said that WBA concrete has a slump and air content without any problems in construction. These facts are consistent with those described in [7,15,16].…”

Section: Slump and Air Content Of Wba Concretesupporting

confidence: 93%

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Physical Property and Heavy Metal Leaching Behavior of Concrete Mixed With Woody Ash

Ueno¹

2023

GEOMATE

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In recent years, the woody biomass power generation has attracted a lot of attention since woody biomass is an alternative energy source to fossil fuels. In the future, further implementation of woody biomass power generation is expected, and a large amount of woody ash will be discharged. Several studies have been conducted on the effective use of woody ash for construction materials. However, woody ash has not been practically used because of concerns about the leaching of heavy metals from concrete mixed with woody ash. If the above problem can be solved, a large amount of woody ash is expected to be used. In this study, the fresh property and hardened properties, such as compressive strength and length change were measured to evaluate the feasibility of using concrete mixed with woody ash. Furthermore, a heavy metal leaching test was conducted to assess the environmental impact caused by concrete mixed with woody ash. As the result, the concrete mixed with woody ash has the slump and air content similar to that of normal concrete, the compressive strength meeting the standard durability design strength in Japan, and the shrinkage is similar to that of normal concrete. Additionally, the concentration of heavy metals exceeding the soil environmental quality standards in Japan was partially detected, but the leaching amount of heavy metals from the concrete mixed with woody ash was similar to that from normal concrete.

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Section: Slump and Air Content Of Wba Concretesupporting

confidence: 93%

“…As reported in [7,15,16], woody ash mixed into the concrete may absorb water and the workability of concrete may decrease. Therefore, when woody ash is mixed into the concrete, it is necessary to increase the unit water volume in concrete in order to achieve the same level of workability as normal concrete.…”

Section: Concrete MIX Designmentioning

confidence: 84%

Physical Property and Heavy Metal Leaching Behavior of Concrete Mixed With Woody Ash

Ueno¹

2023

GEOMATE

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“…Kim [49] highlighted the latest breakthroughs in cement and concrete research, including novel strategies for lowering carbon dioxide emissions in Portland cement production, such as the development of new building materials [50], and the development of mathematical modeling of the reliability of new composite materials [51]. Furthermore, it is necessary to highlight the importance of the prediction of the performance properties and reliability of new building materials [52].…”

Section: Methods To Estimate the Carbon Dioxide Removals Due To Carbo...mentioning

confidence: 99%

“…Furthermore, it is necessary to highlight the importance of the prediction of the performance properties and reliability of new building materials [52]. For instance, AL-Kharabsheh et al [50] suggested the partial replacement of Portland cement clinker in cement with wooden ash and studied its effect on concrete compressive strength and durability, concluding that 10% is the optimum replacement.…”

Section: Methods To Estimate the Carbon Dioxide Removals Due To Carbo...mentioning

confidence: 99%

Carbon Dioxide Uptake by Brazilian Cement-Based Materials

da Silva Rego,

Sanjuán,

Mora

et al. 2023

Applied Sciences

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The worldwide cement industry plays an important role in addressing the climate change challenge. Brazil’s cement industry currently has 91 cement plants with an installed production capacity of 94 million tons per year and has started to calculate the net CO2 emissions to achieve a carbon-neutral cement sector by 2050. Accordingly, the carbon dioxide uptake due to mortar and concrete carbonation is subtracted from the carbon dioxide emitted by the chemical reaction for the calcination of lime, i.e., the calcination process performed during clinker production. Now-adays, the Intergovernmental Panel on Climate Change (IPCC) Guidelines for National Greenhouse Gas (GHG) Inventories to report the GHG emissions do not include any calculation procedure to consider the mortar and concrete carbonation. However, the Intergovernmental Panel on Climate Change (IPCC)’s Sixth Assessment Report (AR6) recognizes the physico-chemical process known as carbonation. Brazilian net carbon dioxide emissions of cements produced from 1990 to 2019 are estimated considering the carbon dioxide uptake during the service-life and end-of-life and secondary usage stages (Tier 1). This is a fundamental scientific and technological novelty that changes the current approach to estimate the carbon dioxide emissions due to the Portland cement clinker production. Even considering the relative novelty of this approach, it should be promoted in the future and included in the national inventory report (NIR). The carbon dioxide uptake by mortar and concrete carbonation for 30 years is about 140 million tons. Within this thirty-year period about 483 million tons have been released due to the calcination process.

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“…Analyzing the process of processing walnut shells to obtain organic coarse aggregate for concrete, we can conclude that, despite the use of water in it and taking into account the potential energy costs for its heating, it is much more environmentally friendly and less energy-intensive than the production of a mineral coarse-aggregate placeholder. It is also important to note that, as mentioned above, the walnut shell is a rapidly renewable natural raw material for which the issue of mass disposal has not been resolved, while mineral aggregates are exhaustible and non-renewable resources that require energy-intensive and environmentally unsafe technological processes for production [ 23 , 24 , 25 , 26 , 27 , 28 ]. The work of the authors [ 21 ] is devoted to the study of the mechanical properties of concrete with the partial replacement of coarse aggregate with walnut shells and partial replacement of fine aggregate with metallurgical slag.…”

Section: Introductionmentioning

confidence: 99%

Effect of Walnut-Shell Additive on the Structure and Characteristics of Concrete

et al. 2023

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The partial replacement of the mineral components of concrete with natural renewable analogues in full possession of the performance characteristics of the final material, allows not only the concrete-production process to be made more environmentally friendly and inexpensive, but also to solve an important task for the agricultural industry, which is that associated with waste disposal. The scientific novelty of the work is in the obtaining of new concrete compositions by the partial replacement of coarse aggregate with a natural analogue in the form of a walnut shell, which has the maximum ratio of the strength of the composite to its density, as well as in identifying new dependencies of strength and density and their ratio on the amount of replacement of mineral coarse-aggregate walnut shell. The main goal of this article was to analyze the effect of composition factors on characteristics of concrete with partial replacement of large aggregates with walnut shells and to search for the optimal compound that would make it possible to obtain concrete with a minimum decrease in strength characteristics with a maximum decrease in concrete density. Cubes and prism laboratory samples were made from concrete of normal density with the replacement of coarse aggregate by 5, 10, 15, 20, 25 and 30%, by volume. The main mechanical properties, such as density, strength (compressive, tensile, tensile strength in bending) of the concrete samples were studied. The investigation used standard methods and scanning electron microscopy. An increase into strength characteristics up to 3.5%, as well as the maximum ratio of strength to density of concrete, was observed at a walnut-shell dosage of 5%. Effective partial replacement of coarse aggregate with walnut shells leads to a reduction in the consumption of crushed stone by up to 10% and a decrease in the mass of concrete by up to 6%.

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A Review on Strength and Durability Properties of Wooden Ash Based Concrete

Cited by 17 publications

References 52 publications

Physical Property and Heavy Metal Leaching Behavior of Concrete Mixed With Woody Ash

Physical Property and Heavy Metal Leaching Behavior of Concrete Mixed With Woody Ash

Carbon Dioxide Uptake by Brazilian Cement-Based Materials

Effect of Walnut-Shell Additive on the Structure and Characteristics of Concrete

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