Аутори:
1. Драгица Јевтић, Serbia
2. Александар Савић, Serbia
3. Гордана Броћета, Republic of Srpska, Bosnia and Herzegovina

Апстракт:
The results of experimental tests, conducted on self-compacting concrete (SCC) made with lightweight aggregate (expanded clay) and fly ash, are presented in this paper. Three series of samples were made, with the constant quantity of cement (mc = 550 kg/m3), and different contents of fly ash (40% to 65% relative to the weight of cement). Expanded clay was separated into two fractions (0/5 and 5/10 mm). Two types of chemical admixtures were used: superplasticizer and viscosity modifier. Partial replacement of expanded clay with river stone aggregate (0/4 mm) was done in experimental series. Test results showed that SCC concrete with light aggregate have all properties of self-compactibility and bulk density lower than 1650 kg/m3. The present composites showed a satisfactory compressive strength (app. 30 MPa) and durability proven by both water permeability, and combined frost and salt resistance tests.

Кључне речи:
self-compacting concrete,lightweight,fly ash

Тематска област:
СИМПОЗИЈУМ А - Наука материје, кондензоване материје и физикa чврстог стања

Датум пријаве сажетка:
16.06.2015.

Конференцијa:
Contemporary Materials 2015 - Савремени Материјали

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