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izvor podataka: crosbi

Reuse of woody biomass ash waste in cementitious materials (CROSBI ID 228701)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Ukrainczyk, Neven, Vrbos, Nevenka ; Koenders, Eduardus A.B. Reuse of woody biomass ash waste in cementitious materials // Chemical and biochemical engineering quarterly, 30 (2016), 2; 137-148. doi: 10.15255/CABEQ.2015.2231

Podaci o odgovornosti

Ukrainczyk, Neven, Vrbos, Nevenka ; Koenders, Eduardus A.B.

engleski

Reuse of woody biomass ash waste in cementitious materials

There is an increased interest in the reuse of ash waste from biomass combustion, being a sustainable source of energy. This paper investigates the partial replacement of cement and sand in building materials with fly ash waste generated from combustion of woody biomass waste. Results show that the ash is widening the particle size distribution of cement and has minerals complementary to portland cement thus justifying it's application as cement replacement but with a relatively high amount of free CaO and MgO that may exert significant expansion. With ash addition the rate of hydration, strength and workability decreased. Optimum dosage showed 15% of ash, where it replaces 5% of cement and 3.33% of sand, which can still produce a structural grade cementitious material with acceptable workability and mechanical properties. The ash exhibits hydraulic and pozzolanic activity that initially increases and subsequently decreases the amount of Ca(OH)2 in the hydrated material.

biomass ash ; blended cement ; hydration ; sustainability ; waste reuse

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Podaci o izdanju

30 (2)

2016.

137-148

objavljeno

0352-9568

10.15255/CABEQ.2015.2231

Povezanost rada

Kemija, Građevinarstvo

Poveznice
Indeksiranost