# Strength performance of sodium hydroxide-activated fly ash, rice straw ash, and laterite soil geopolymer mortar
> Rangan P.R.

URL kanonis: https://discover.unhas.ac.id/publications/strength-performance-of-sodium-hydroxide-activated-fly-ash-rice-straw-ash-and-la
Jurnal / Konferensi: Iop Conference Series Earth and Environmental Science
Tahun terbit: 2020
DOI: https://doi.org/10.1088/1755-1315/473/1/012123
ISSN: 17551307
Citations: 6

## Authors
- Rangan P.R.

## Abstract
Abstract The geopolymer of fly ash (FA), rice straw ash (RSA) and laterite soil (LS) was prepared. The strength of the geopolymer mortar with the FA/RSA/LS percentage ratio of 41.67/16.67/41.67 was tested. The geopolymer was activated with sodium hydroxide (NaOH). Effect on air curing on compressive strength as well as the optimum mix proportion of geopolymer mortar was investigated. It is possible to achieve compressive strengths of 1.64 N/mm 2 , 1.72 N/mm 2 , and 3.22 N/mm 2 , respectively for the 12 M sodium hydroxide-activated geopolymer mortar after 3, 7 and 28 days of casting when air cured. Results indicated that the increase in the curing period increased the compressive strength.

## Keywords
- Fly ash
- Geopolymer
- Compressive strength
- Sodium hydroxide
- Curing (chemistry)
- Mortar
- Materials science
- Straw
- Composite material
- Chemistry
- Inorganic chemistry
- Organic chemistry

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Sumber: Discover Unhas — RIMS Universitas Hasanuddin.
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