Re-use of fly ash in cement concrete

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Re-use of fly ash in cement concrete

kuriame LT ateiti

Project No.: 09.3.3.-LMT-K-712-25-0077

Project title: ‘Re-use of fly ash in cement concrete’

Start of project activities – 2021-09-01

End of the project – 2022-03-31

Funding available – 2655,26 Eur.

The project is financed by the European Social Fund under the European Union Funds Investment Operational Programme 2014-2020, Priority 9 “Public Education and Enhancing the Potential of Human Resources”, Implementing Measure No. 09.3.3-LMT-K-712 “Developing the Scientific Competence of Scientists, Other Researchers, and Students through Practical Scientific Activities”.

As part of the development of the circular economy concept and in order to minimise the amount of waste to be recovered, the upgrading of waste and the recycling of recycled materials as raw materials are being promoted in particular in various industries. One of the ways in which these trends are being developed is the recycling of bottom ash from the incineration of municipal waste into cement materials. The use of bottom ash can reduce the cement content of concrete, environmental pollution and CO2 emissions to the atmosphere. Reducing CO2 emissions in cement production is now a priority in the European Union and worldwide as part of the sustainable development strategy.

The aim of the project is to investigate the effect of bottom ash from a cogeneration plant burning residual waste as fuel on the physical and mechanical properties of cement concrete.

The study will address two problems: (1) the recycling of bottom ash from municipal waste incineration for the production of cementitious concrete, and (2) the saving of cement in moulding mixes without compromising the performance of the final product.

In the course of the research, the student will investigate the physical properties of the raw materials and bottom ash used, determine the effect of bottom ash on the rheological properties of the concrete doughs, determine the effect of bottom ash on the physical and mechanical properties of the concrete, and, on the basis of the results of the investigations, select the best amounts of bottom ash in the mixtures.

The research will provide the student with new competences and practical knowledge in scientific, technological and organisational activities, develop the student’s research skills and contribute to the solution of a global problem.