RTU Research Information System
Publikācija: Applicability of Freeze-Thaw Resistance Testing Methods for High Strength Concrete at Extreme −52.5 °C and Standard −18 °C Testing Conditions
| Publication Type | Scientific article indexed in SCOPUS or WOS database |
|---|---|
| Funding for basic activity | Research project |
| Defending: | , |
| Publication language | English (en) |
| Title in original language | Applicability of Freeze-Thaw Resistance Testing Methods for High Strength Concrete at Extreme −52.5 °C and Standard −18 °C Testing Conditions |
| Field of research | 2. Engineering and technology |
| Sub-field of research | 2.1. Construction and transportation engineering |
| Research platform | None |
| Authors |
Ģirts Būmanis
Laura Dembovska Aleksandrs Korjakins Diāna Bajāre |
| Keywords | Freeze-thaw resistance, High strength concrete, Ultrasonic pulse velocity |
| Abstract | In the present paper an attempt was made to evaluate reliability and efficiency of two freeze-thaw testing methods by testing high strength concrete (HSC) with two different supplementary cementitious materials as a partial substitute to cement in binary blend. Silica fume (SF) or metakaolin containing by-product (MKW) was used replacing with them 5, 10 or 15 wt% of cement. The freeze-thaw resistance of HSC samples saturated with 5% NaCl solution was tested at standard −18 °C and extreme −52.5 °C testing conditions. HSC series with SF exhibited higher initial strength, while poor resistance against freeze-thaw cycles was observed. Strength loss from 8 to 25% was observed after 12 freeze-thaw cycles at −52.5 °C, while 15 cycles reduced the strength by 30 to 53%, which was similar to 110 or 150 freeze-thaw cycles at −18 °C. Hence, it was concluded that extreme low temperature testing can significantly reduce the time, which is necessary for evaluating freeze-thaw durability of HSC. HSC without air entraining additives with W/C ranging from 0.38 to 0.45 proved to be vulnerable to freeze-thaw exposure as its water absorption gradually increased. Ultrasonic pulse velocity measurements during freeze-thaw tests allowed to determine indirectly the strength loss and good correlation between the two was observed. |
| DOI: | 10.1016/j.cscm.2018.01.003 |
| Hyperlink: | https://www.sciencedirect.com/science/article/pii/S2214509517302504?via%3Dihub  |
| Reference | Būmanis, Ģ., Dembovska, L., Korjakins, A., Bajāre, D. Applicability of Freeze-Thaw Resistance Testing Methods for High Strength Concrete at Extreme −52.5 °C and Standard −18 °C Testing Conditions. Case Studies in Construction Materials, 2018, Vol. 8, No. 1, pp.139-149. ISSN 2214-5095. Available from: doi:10.1016/j.cscm.2018.01.003 |
| Additional information |
Citation count: |
| ID | 27662 |
