The potential of bioash for utilization in road construction in eastern Croatia

Zagvozda, Martina; Dimter, Sanja; Rukavina, Tatjana

doi:10.1515/sspjce-2017-0028

Cited by 5 publications

(3 citation statements)

References 4 publications

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“…The development and increase in the number of biomass power plants, as mentioned before, led to the production of increasing quantities of wood bio-ash in Croatia [3]. The positive experience of different applications of wood ash in the construction industry has inspired a growing number of wood ash application studies for usage in pavement structures.…”

Section: Objective Of This Studymentioning

confidence: 99%

“…The operation of such plants contributes to meeting national targets that are in line with EU directives on renewable energy production and energy efficiency. In addition to large cogeneration plants in Croatia, there are a number of smaller thermal power plants that use biomass as an energy source for central heating and electricity production, so large amounts of bio-ash remain as a byproduct of this process [3].…”

Section: Introductionmentioning

confidence: 99%

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Contribution to the Research on the Application of Bio-Ash as a Filler in Asphalt Mixtures

Šimun,

Dimter,

Grubješić

et al. 2023

Applied Sciences

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The intensive construction of all categories of roads and the very demanding maintenance of the pavement structures of existing roads due to ever-increasing traffic loads confronts us with a lack of resources and also an increase in cost for the constituent materials of asphalt mixtures. On the other hand, there is another problem: large amounts of waste material in the form of bio-ash, which is obtained by burning waste wood biomass in the production of thermal energy and/or electricity. In order to solve the environmental problem of bio-ash disposal, research was conducted on the use of waste bio-ash as a constituent material in asphalt pavements. As part of this study, the effect of asphalt concrete mix, with bio-ash as a filler, on the release of harmful substances into the environment was investigated. The possibility of using wood bio-ash (BA) as a filler in asphalt mixtures was then determined through physical and mechanical property tests. The properties of the asphalt sample’s sensitivity to the action of water (indirect tensile strength ratio—ITSR) and resistance to rutting were tested for asphalt concrete type AC 11 surf with 50% bio-ash in the filler. It was established that asphalt concrete does not release harmful substances into the environment and that the 50% share of bio-ash in the filler results in asphalt that has good resistance to water sensitivity and even greater resistance to rutting.

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Section: Objective Of This Studymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Contribution to the Research on the Application of Bio-Ash as a Filler in Asphalt Mixtures

Šimun,

Dimter,

Grubješić

et al. 2023

Applied Sciences

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“…The use of biomass as an energy source has a long tradition in Croatia [ 1 ], but it has been used on a small scale, primarily for heating houses and other structures and in food preparation. Today, prompted by ecological reasons and various European and national regulations, this renewable source is again being used to produce energy, but on a larger scale.…”

Section: Introductionmentioning

confidence: 99%

Laboratory Evaluation of the Properties of Asphalt Mixture with Wood Ash Filler

et al. 2021

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Today, the road construction profession is more than ever facing limited and increasingly expensive resources for component materials of asphalt mixtures, which has also led to the need for continuous research on the use of waste materials. One such potentially usable waste material is ash obtained by the combustion of wood biomass that is used to produce heat and electricity. The goal of this paper is to ascertain the possibility of using wood ash (WA) as the filler in asphalt concrete mixtures for the base-wearing layers of a pavement. The properties of Marshall stability (MS), quotient (MQ) and deformations, and the indirect tensile strength of water-conditioned samples and dry samples were tested on asphalt samples of an AC16 surf mixture with different contents of wood ash as the filler. The obtained values of MS and MQ indicate that a 50% content of bio ash in the filler results in an increase in asphalt’s resistance to the appearance of plastic deformations and greater tensile strength and in good asphalt resistance to the action of water.

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