Autori:
1. Dragica Jevtić, Serbia
2. Aleksandar Savić, Serbia
3. Gordana Broćeta, Republic of Srpska, Bosnia and Herzegovina

Apstrakt:
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.

Ključne reči:
self-compacting concrete,lightweight,fly ash

Tematska oblast:
SIMPOZIJUM A - Nauka materije, kondenzovane materije i fizika čvrstog stanja

*** no_trans(Date_Paper_Create, bs )***:
16.06.2015.

Konferencija:
Contemporary Materials 2015 - Savremeni Materijali

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