Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Effect of fine aggregate replacement with expanded perlite and pumice on the development of lightweight concrete
In the present study, an attempt has been made to produce lightweight concrete (LWC) by replacing fine aggregates with expanded perlite and pumice. The first set of LWC is prepared by replacing the fine aggregates with expanded perlite at varying proportions, i.e. 0%, 25%, 50%, and 100%. The second set of the mix is prepared to study the effect of replacement of natural sand with equal proportionality of dual particles (expanded perlite and pumice). The replacement of fine aggregate with lightweight aggregates (expanded perlite and pumice) efficiently developed the LWC based on the density specified by Eurocode 2 Part 1–1 (density < 2200 kg/m3). The incorporation of expanded perlite efficiently brought down the density of developed LWC lower than 2200 kg/m3. However, the density of the mix prepared using expanded perlite and pumice exhibited slightly greater than the density of only expanded perlite contained LWC. The incorporation of pumice in the LWC imparts the pozzolanic reactivity and shows better strength and durability properties than the only expanded perlite contained LWC. Furthermore, the microstructure properties revealed that the presence of porous lightweight material unable to improve the interfacial transition zone (ITZ) compared to conventional concrete.
Effect of fine aggregate replacement with expanded perlite and pumice on the development of lightweight concrete
In the present study, an attempt has been made to produce lightweight concrete (LWC) by replacing fine aggregates with expanded perlite and pumice. The first set of LWC is prepared by replacing the fine aggregates with expanded perlite at varying proportions, i.e. 0%, 25%, 50%, and 100%. The second set of the mix is prepared to study the effect of replacement of natural sand with equal proportionality of dual particles (expanded perlite and pumice). The replacement of fine aggregate with lightweight aggregates (expanded perlite and pumice) efficiently developed the LWC based on the density specified by Eurocode 2 Part 1–1 (density < 2200 kg/m3). The incorporation of expanded perlite efficiently brought down the density of developed LWC lower than 2200 kg/m3. However, the density of the mix prepared using expanded perlite and pumice exhibited slightly greater than the density of only expanded perlite contained LWC. The incorporation of pumice in the LWC imparts the pozzolanic reactivity and shows better strength and durability properties than the only expanded perlite contained LWC. Furthermore, the microstructure properties revealed that the presence of porous lightweight material unable to improve the interfacial transition zone (ITZ) compared to conventional concrete.
Effect of fine aggregate replacement with expanded perlite and pumice on the development of lightweight concrete
Sharma, Bharvi (Autor:in) / Sharma, Raju (Autor:in) / Bansal, Prem Pal (Autor:in)
Australian Journal of Civil Engineering ; 20 ; 115-129
02.01.2022
15 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
Durability of Structural Lightweight Concrete Containing Expanded Perlite Aggregate
| Springer Verlag | 2020
Durability of Structural Lightweight Concrete Containing Expanded Perlite Aggregate
| DOAJ | 2020
FINE AGGREGATE, PUMICE, VOLCANIC GLASS MATERIAL, MIXED CEMENT AND PERLITE
| Europäisches Patentamt | 2019
Some properties of a lightweight concrete made with expanded perlite aggregate
| UB Braunschweig | 1965