Alkali - Silicate admixture for cement composites incorporating pozzolan or blast furnace slag
✍ Scribed by Vladimír Živica
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 391 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0008-8846
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✦ Synopsis
This research was devoted to the study of the influence of the developed al~ali-silicate admixture (AS admixture) on mortar properties. The obtained results shown j that the admixture significantly increased the strength of the mortars made from portland cement (PC) and silica fume (SF) or blast furnace slag (SL). For example after 24 h hardening or mortar (50% SF ÷ 7O% PC), with the admixture, reached value of compression strength 18,7 MPa opposite to the value of 5,6 MPa of control mortar (100% PC). The same accelerating effect of AS admixture was observed also with mortar incorporating slag and with slag mortar (100% SL). Further results shown, that the mortars with AS admixture had an increased content of hydration products and substantially more dense pore structure than mortars of the same composition, but without the admixture.