The Effect of Raw Materials and Mechanical Activation Stages on Properties of Foamed Concrete

31 Pages Posted: 16 Feb 2024

See all articles by Janis Baronins

Janis Baronins

UiT The Arctic University of Norway; Riga Technical University

Andrei Shishkin

Riga Technical University

Vitalijs Lusis

Riga Technical University

Chiara Giosuè

affiliation not provided to SSRN

Dmitri Goljandin

affiliation not provided to SSRN

Iveta Nováková

affiliation not provided to SSRN

Sofija Kekez

UiT The Arctic University of Norway

Aleksandrs Korjakins

Riga Technical University

Dmitrijs Gorelikovs

Riga Technical University

Pavels Gavrilovs

Riga Technical University

Abstract

This study investigates the impact of high-energy milling on foamed concrete, which is crucial for its lightweight and insulating properties. The research uses a two-rotor disintegrator for milling cement, sand, and microsilica to evaluate the mechanical properties of foamed concrete produced with a high-speed homogenizer in a novel two-stage process. Comparisons are made between non-milled, single-milled, and double-milled individual components and mixtures with commercial binders. While energy consumption significantly increases after double-milling, immediate use of single-milled mixtures leads to enhanced compressive strength – 6.53 MPa for Portland-limestone cement and 9.95 MPa for white Portland cement. However, storing these mixtures for three days reduces their strength to 5.20 MPa and 6.63 MPa, respectively, due to reagglomeration. Microstructural analysis reveals finer particles and larger pores in samples made with milled mixtures, highlighting the importance of immediate use for optimal foamed concrete quality.

Keywords: foamed concrete, Disintegration, Binding energy, Direct foaming, Cavitation

Suggested Citation

Baronins, Janis and Shishkin, Andrei and Lusis, Vitalijs and Giosuè, Chiara and Goljandin, Dmitri and Nováková, Iveta and Kekez, Sofija and Korjakins, Aleksandrs and Gorelikovs, Dmitrijs and Gavrilovs, Pavels, The Effect of Raw Materials and Mechanical Activation Stages on Properties of Foamed Concrete. Available at SSRN: https://ssrn.com/abstract=4728421 or http://dx.doi.org/10.2139/ssrn.4728421

Janis Baronins (Contact Author)

UiT The Arctic University of Norway ( email )

Norway
+371 26683456 (Phone)

Riga Technical University ( email )

LA
Latvia
+371 26683456 (Phone)

Andrei Shishkin

Riga Technical University ( email )

1 Kalku Street
Riga, LV-1658
Latvia

Vitalijs Lusis

Riga Technical University ( email )

1 Kalku Street
Riga, LV-1658
Latvia

Chiara Giosuè

affiliation not provided to SSRN ( email )

No Address Available

Dmitri Goljandin

affiliation not provided to SSRN ( email )

No Address Available

Iveta Nováková

affiliation not provided to SSRN ( email )

No Address Available

Sofija Kekez

UiT The Arctic University of Norway ( email )

Norway

Aleksandrs Korjakins

Riga Technical University ( email )

1 Kalku Street
Riga, LV-1658
Latvia

Dmitrijs Gorelikovs

Riga Technical University ( email )

1 Kalku Street
Riga, LV-1658
Latvia

Pavels Gavrilovs

Riga Technical University ( email )

1 Kalku Street
Riga, LV-1658
Latvia

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