Influence of type of biomass burned on the properties of cement mortar containing fly ash

Jura, Jakub

doi:10.17512/bozpe.2020.1.09

Cited by 9 publications

(9 citation statements)

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“…However, the use of biomass fly ash in cementitious systems can also provide different results. In past research, the compressive strength was below that of control samples [5,6] or exceeded that of control samples [7]. On the contrary, poorer results were observed in samples containing higher proportions of wood ashes [4,8].…”

Section: Introductionmentioning

confidence: 86%

Hydrothermally Treated Biomass Fly Ash as an Additive for Portland Cement

Kaminskas,

Eisinas,

Barauskas

et al. 2024

Sustainability

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This study aimed to investigate the possibility of using biomass fly ash as a cement additive after hydrothermal modification. The treatment of biomass fly ash involves additional milling and curing under various hydrothermal conditions. Variation of the CaO/SiO2 ratio was achieved by mixing different samples of biomass fly ash. Samples with a CaO/SiO2 ratio of 1 and 1.5 were selected for synthesis, and cement samples with different amounts of the synthesized additive were examined. The research employed the following methodologies: XRD, XRF, DSC-TG, ICP-OES, and isothermal calorimetry. It was found that in all the biomass fly ash samples, calcium silicate hydrates already formed after 2 h of hydrothermal synthesis at 200 °C. Analysis of the chemical composition of the liquid medium after hydrothermal maintenance revealed an exceptionally low release of heavy metals from the samples. The synthesised additive accelerated the initial hydration of Portland cement. In total, 5% to 10% of the weight of cement can be replaced by hydrothermally treated biomass fly ash without reducing the compressive strength class of Portland cement samples.

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Section: Introductionmentioning

confidence: 86%

Hydrothermally Treated Biomass Fly Ash as an Additive for Portland Cement

Kaminskas,

Eisinas,

Barauskas

et al. 2024

Sustainability

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“…Firewood can be assumed as solar energy storage as the biomass is produced by photosynthesis sequestrating carbon dioxide, which will be returned during burning. If the ash will be used for fertilisation or construction materials [13][14], we can organise closed energy and substance loops. This is only if we will avoid atmospheric pollution.…”

Section: Firewood Heatingmentioning

confidence: 99%

Agrocenoses air improvement for longer and healthier people life

Ткаченко

Mileikovskyi

Satin

et al. 2023

22nd International Scientific Conference Engineering for Rural Development Proceedings

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In 2019, 99% of people in the world lived in areas violating WHO’s recommended air quality indicators. By WHO’s estimation, in 2019, air pollution caused 4.2 million premature deaths worldwide. The most harmful are PM2.5 particles, which penetrate the blood through the aerogematic barrier causing cardiovascular and respiratory diseases and cancer. PM10 can pass deeply into the lungs, but they are not so harmful. People always believed that rural air is healthy. Research at the University of Minnesota showed that 18 000 Americans die every year due to air pollution by agriculture, primarily, ammonia (NH3) from the decomposition of fertilizers and livestock waste (12.4 thousand deaths), and PM2.5 particles (4.8 thousand deaths). In polluted areas, plants have more aggressive allergenic pollen. Agricultural waste management and optimization of landscapes are effective ways of solving the problem. In this work, solutions are proposed to improve the air safety of agrocenoses. Minimization of contact of waste with air and its utilisation as soon as possible allows for avoiding decomposition. Converting to gasification boilers/ovens avoids releasing PM2.5 by heating. In addition, plants capable of purifying the air from relevant pollutants should be introduced in agrocenoses. The places for planting are forest protection strips, free places near roads, residential and administrative buildings, etc. In particular, the use of hedges with such plants can provide a local oasis of clean air around houses. In the case of dense land use and lack of free space, it is possible to introduce “green structures” on buildings. An assortment of plants for different regions of Ukraine is offered.

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“…In recent years, the literature contains a number of reports on the use of various wastes, including those difficult to manage, for the production of cement mortars and concretes commonly used in construction. For this purpose, waste was used such as ceramics (Ulewicz and Halbiniak, 2016;Kumar et al, 2021), glass (Pietrzak and Ulewicz, 2017;Dong et al, 2021), polymer materials (Pietrzak and Ulewicz, 2018;Pietrzak, 2018;Ulewicz and Pietrzak, 2021) fly ash from biomass combustion (Jura, 2020;Popławski, 2020;Jura and Ulewicz, 2021), ash from sewage sludge incineration (Pietrzak, 2019) or copper industry waste (Helbrych, 2019). Attempts were also made to use asbestos waste in the production of building materials.…”

Section: Asbestos-cement Waste As a Secondary Raw Materialsmentioning

confidence: 99%

Recycling of Asbestos-Cement Waste – An Opportunity or a Threat?

Brycht

2022

System Safety: Human - Technical Facility - Environment

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Asbestos-cement waste from roof coverings and facades are classified as hazardous materials and should be successively removed from buildings. The current management of these wastes is limited to their controlled depositing in landfills, which does not ultimately solve the problem of their impact on the environment in the future. The article presents the current state of disposal of asbestos in Poland, with particular emphasis on the Silesian Voivodeship. The literature reports on the methods of neutralizing this type of waste and the possibility of their recycling were analyzed. It was found that the most popular way of recycling asbestos waste is thermal treatment, and the least effective - chemical treatment. Unfortunately, legal barriers prevent the spread of these solutions in the country in practice, despite the fact that safe methods of recycling asbestos-cement products are known.

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Influence of type of biomass burned on the properties of cement mortar containing fly ash

Cited by 9 publications

References 0 publications

Hydrothermally Treated Biomass Fly Ash as an Additive for Portland Cement

Hydrothermally Treated Biomass Fly Ash as an Additive for Portland Cement

Agrocenoses air improvement for longer and healthier people life

Recycling of Asbestos-Cement Waste – An Opportunity or a Threat?

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