Crushed bricks as aggregate in cement based binder

Crushed bricks as aggregate in cement based binder

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The work deals with the impact of crushed brick on properties of Portland cement binder. The source of brick recycled materials is not only the demolition waste, but also the waste from brick production. One way to reduce the amount of this recyclate is to use it in cement-based composite. The advantages of using bricks as aggregate are their lower bulk density compared to conventional aggregates. Economic and ecological benefits are also important, because less natural sources need to be mined. First, the phase composition of used brick aggregate, its particle size and morphology were analysed. Test specimens with different content of brick recyclate were prepared and tested for the mechanical properties. Subsequently, the microstructure of prepared samples was examined using a scanning electron microscope. The phase composition of samples was analysed by X-ray diffraction analysis.

The work deals with the impact of crushed brick on properties of Portland cement binder. The source of brick recycled materials is not only the demolition waste, but also the waste from brick production. One way to reduce the amount of this recyclate is to use it in cement-based composite. The advantages of using bricks as aggregate are their lower bulk density compared to conventional aggregates. Economic and ecological benefits are also important, because less natural sources need to be mined. First, the phase composition of used brick aggregate, its particle size and morphology were analysed. Test specimens with different content of brick recyclate were prepared and tested for the mechanical properties. Subsequently, the microstructure of prepared samples was examined using a scanning electron microscope. The phase composition of samples was analysed by X-ray diffraction analysis.

crushed brick, Portland cement, compressive strength

crushed brick, Portland cement, compressive strength

PALOVČÍK, J.; OPRAVIL, T.; ŠOUKAL, F.; MÁSILKO, J.

2021

03.06.2020

IOP Publishing

Telč

IOP Conference Series: Materials Science and Engineering

1757-8981

IOP Conference Series: Materials Science and Engineering

1039

Spojené království Velké Británie a Severního Irska

1

7

7

https://iopscience.iop.org/article/10.1088/1757-899X/1039/1/012005

http://hdl.handle.net/11012/196530

Palovcik_2021_IOP_Conf._Ser. _Mater._Sci._Eng._1039_012005