RTU Research Information System
Publikācija: Effect of Silicon Carbide Aggregate
| Publication Type | Publication (anonimusly reviewed) in a journal with an international editorial board indexed in other databases |
|---|---|
| Funding for basic activity | Other research projects |
| Defending: | , |
| Publication language | English (en) |
| Title in original language | Effect of Silicon Carbide Aggregate, Prepared by Different Methods, on the Properties of Refractory Concrete with Cenospheres |
| Field of research | 2. Engineering and technology |
| Sub-field of research | 2.1. Construction and transportation engineering |
| Research platform | Materials, Processes, and Technologies |
| Authors |
Ina Pundiene
J Pranckevičienė Aleksandrs Korjakins M Kligys |
| Keywords | Aluminate cement, Ball mill, Cenospheres, Disintegrator, Refctory concrete, Silicon carbide aggregate |
| Abstract | This paper presents the effect of different preparation methods (milling by ball mill or collision milling by disintegrator) of silicon carbide aggregate (SiCA) on the properties of refractory concrete with cenospheres (CNPs). The different milling methods are known to have a significant effect on the morphology of aggregates, their shape, and specific surface area. SiCA prepared by different methods and CNPs influence the hydration course of aluminate cement (AC) paste. Disintegrated SiCA prolongs the process of AC hydration more noticeably (by 1.25 h) compared to milled SiCA. CNPs prolong this process by 1.5 h. Disintegrated SiCA in the amounts of 5–15% was found to improve the mechanical properties of refractory concrete after hardening by 5.5–16.6%, 12.5–30%, and 9–57% after firing at temperatures of 1000 °C and 1200 °С as compared to the same amount of milled SiCA in the mix. Disintegrated SiCA in the same amounts was found to increase the firing shrinkage of refractory concrete by 16–31% and by 0.33–0.35% after firing at 1000 °C and 1200 °С as compared to the same amount of milled SiCA in the mix. The addition of 5–15% of CNPs into refractory concrete mixes containing 15% of disintegrated SiCA, after firing at 1200 °С results in a decrease in density (from 2080 to 1490 kg/m3), firing shrinkage (from 0.35% to 0.18%), and strength (from 22 to 16 MPa) of the samples. © 2018 Elsevier Ltd and Techna Group S.r.l. |
| DOI: | 10.1016/j.ceramint.2018.06.015 |
| Hyperlink: | https://www.sciencedirect.com/science/article/pii/S027288421831441X?via%3Dihub  |
| Reference | Pundiene, I., Pranckevičienė, J., Korjakins, A., Kligys, M. Effect of Silicon Carbide Aggregate, Prepared by Different Methods, on the Properties of Refractory Concrete with Cenospheres. Ceramics International, 2018, Vol. 44, No. 13, pp.15944-15953. ISSN 0272-8842. Available from: doi:10.1016/j.ceramint.2018.06.015 |
| Additional information |
Citation count: |
| ID | 31342 |
