Abstract
Utjecaj pepela iz papirnog mulja na geopolimerni beton s letećim pepelom
Highlights
In 1978, Davidovits proposed that source materials rich in silicon (Si) and aluminium (Al), which are of geological origin, or rich in by-product materials such as fly ash (FA) and rice husk ash, can react with an alkaline liquid to produce binders
This study examines the incinerated Paper sludge ash (PSA) as an alternative material that has good pozzolanic reactivity and that has been included in the geopolymer mix under different curing regimes
The geopolymer concrete (GPC) mix design was prepared for grade M35, which was obtained following the provisions of the Bureau of Indian Standards (BIS), code for ordinary Portland cement concrete, but with the replacement of cement with fly ash, and water/ cement ratio with alkali activator solution to fly ash ratio
Summary
In 1978, Davidovits proposed that source materials rich in silicon (Si) and aluminium (Al), which are of geological origin, or rich in by-product materials such as fly ash (FA) and rice husk ash, can react with an alkaline liquid to produce binders. Quantitative prediction of the suitability of a specific mineral as source material is still not possible due to complexity of the reaction mechanisms involved [6]. Available materials such as kaolin [7, 8], pozzolana [9, 10] and Malaysian marine clay [11], treated minerals such as metakaolin and waste materials such as fly ash [12,13,14,15,16,17,18,19], construction waste [20], red clay brick waste [21], fly ash and rice husk–bark ash [22], and fly ash and blast furnace slag [23], can be used. This study examines the incinerated PSA as an alternative material that has good pozzolanic reactivity and that has been included in the geopolymer mix under different curing regimes
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