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Issue 19 (2) 2020 pp. 93-104

Gabriela Rutkowska

Instytut Inżynierii Lądowej, Szkoła Główna Gospodarstwa Wiejskiego w Warszawie

Fly ash from the thermal transformation of sewage sludge as an additive to concrete

Keywords: concrete, fly ash, properties of concrete
Abstract:

Concrete is the most commonly used structural material, without which it is hard to imagine modern construction
works. It is a material that can be substantially adapted to specific operating conditions. To exploit
its potential, it is necessary to modify the material composition of concrete. The paper presents the results
of research on the impact of modifying concrete with fly ash from the thermal transformation of sewage
sludge in the amount of 5, 10, 15, 20 and 25% of cement mass on selected parameters of the C20/25 ordinary
concrete. In the course of experimental work, compressive strength measurements were made at two
stages of curing. The collected research results enabled us to develop material models describing the impact
of concrete input parameters on its compressive strength. The obtained results confirm that it is possible
to manufacture ordinary concrete modified by fly ash from thermal transformation of municipal sewage
sludge. It was established that the average compressive strength of concrete containing 25% of ash amounts
to 41.4 MPa and 44.0 MPa after, respectively, 28 and 56 days of curing.

pub/19_2_93.pdf Full text available in in Adobe Acrobat format:
http://www.architectura.actapol.net/volume19/issue2/19_2_93.pdf

For citation:

MLA Rutkowska, Gabriela. "Fly ash from the thermal transformation of sewage sludge as an additive to concrete." Acta Sci.Pol. Arch. 19.2 (2020): 93-104.
APA (2020). . Acta Sci.Pol. Arch. 19 (2), 93-104
ISO 690 RUTKOWSKA, Gabriela. Fly ash from the thermal transformation of sewage sludge as an additive to concrete. Acta Sci.Pol. Arch., 2020, 19.2: 93-104.
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Streszczenie w języku polskim:
http://www.architectura.actapol.net/tom19/zeszyt2/abstrakt-93.html