Effect of the Pozzolit active mineral admixture on the properties of cement mortars and concretes. Part 2: Pozzolanic activity
Journal Article
·
· Cement and Concrete Research
- Univ. on Mining and Geology, Sofia (Bulgaria)
- Building Research Inst., Sofia (Bulgaria)
The results from investigations on the pozzolanic activity of the Pozzolit mineral admixture and its components--silica fume and low calcium content fly ash, are regarded in the present paper. The pozzolanic activity of these materials in hydrating cement pastes in the course of one year has been determined by means of physical, chemical and structural methods. It has been established that the Pozzolit mineral admixture has a high pozzolanic activity, comparable to that of silica fume, which is displayed at all ages of cement hydration and exerts a favorable effect on cement strength characteristics. The pozzolanic properties of the admixture are determined mainly by the silica fume during the early stages of hydration and by the fly ash ingredient--at later stages of hydration.
- OSTI ID:
- 367792
- Journal Information:
- Cement and Concrete Research, Journal Name: Cement and Concrete Research Journal Issue: 7 Vol. 26; ISSN 0008-8846; ISSN CCNRAI
- Country of Publication:
- United States
- Language:
- English
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