Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Physical and mechanical properties of hemp fibre reinforced alkali-activated fly ash and fly ash/slag mortars
Highlights Two hemp fibre alkali-activated mortars were examined at the age of 28 days. The addition of fibres decreases the density and flexural strength. The addition of fibres increases the water absorption rate and compressive strength. The energy absorption capacity under flexure increases with increasing fibre dosage. The initially more brittle matrix exhibits higher relative toughness increase.
Abstract Two alkali-activated mortars with different solid prime materials were analysed. The first mortar contained fly ash, had lower density, higher water absorption, lower compactness, lower compressive strength, similar flexural strength and was less brittle than the second one with fly ash + slag. The addition of hemp fibres slightly changed the mortars’ density, water absorption, compressive and flexural strength, however significantly increased its energy absorption capacity. The initially more brittle matrix exhibited significantly higher relative toughness increase. The smoother and less porous fibre/matrix interface assured through numerous fibre/matrix contact points a more optimal fibre/matrix interfacial bond- and frictional stress transfer.
Physical and mechanical properties of hemp fibre reinforced alkali-activated fly ash and fly ash/slag mortars
Highlights Two hemp fibre alkali-activated mortars were examined at the age of 28 days. The addition of fibres decreases the density and flexural strength. The addition of fibres increases the water absorption rate and compressive strength. The energy absorption capacity under flexure increases with increasing fibre dosage. The initially more brittle matrix exhibits higher relative toughness increase.
Abstract Two alkali-activated mortars with different solid prime materials were analysed. The first mortar contained fly ash, had lower density, higher water absorption, lower compactness, lower compressive strength, similar flexural strength and was less brittle than the second one with fly ash + slag. The addition of hemp fibres slightly changed the mortars’ density, water absorption, compressive and flexural strength, however significantly increased its energy absorption capacity. The initially more brittle matrix exhibited significantly higher relative toughness increase. The smoother and less porous fibre/matrix interface assured through numerous fibre/matrix contact points a more optimal fibre/matrix interfacial bond- and frictional stress transfer.
Physical and mechanical properties of hemp fibre reinforced alkali-activated fly ash and fly ash/slag mortars
Poletanovic, Bojan (Autor:in) / Dragas, Jelena (Autor:in) / Ignjatovic, Ivan (Autor:in) / Komljenovic, Miroslav (Autor:in) / Merta, Ildiko (Autor:in)
27.05.2020
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Carbon nanotube reinforced alkali-activated slag mortars
| British Library Online Contents | 2016
Carbon nanotube reinforced alkali-activated slag mortars
| Online Contents | 2016