| Issue |
MATEC Web Conf.
Volume 315, 2020
International Scientific Practical Conference “Materials science, shape-generating technologies and equipment 2020” (ICMSSTE 2020)
|
|
|---|---|---|
| Article Number | 07008 | |
| Number of page(s) | 8 | |
| Section | Building Materials, Properties, Technologies, Equipment | |
| DOI | https://doi.org/10.1051/matecconf/202031507008 | |
| Published online | 01 July 2020 | |
On the possibility of using lime dust for the production of building materials of forced carbonate hardening
V.I. Vernadsky Crimean Federal University, 4 Academician Vernadsky Ave., Simferopol 295007, Russian Federation
* Corresponding author: aleserba@gmail.com
The paper presents research on the development of building materials with low level of CO2 emissions based on technogenic recycled materials. The paper addresses the determination of optimal formulation and technological parameters of obtaining materials based on lime dust generated by mechanical deposition in cyclones and bag filters of shaft furnaces, as well as finely dispersed marble limestone with a fraction of up to 5 mm. Studies have shown that it is possible to obtain carbonized material with compressive strength of more than 40 MPa from this recycled material by forced carbonization used during three hours. Moreover, to obtain such numbers, the optimal content of lime dust in raw materials should be in the range of 35-40% wt. when the water content of the mixture is 6-7% wt. The carbonized material obtained with the indicated technological parameters will have an average density of 1.95-2.0 g/cm3 and water absorption by weight of not more than 12%.
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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