20.500.12556/DiRROS-30876
Mechanical performance of geopolymer mortar incorporating fly ash based sand as an alternate construction material
The construction industry for a long time looking a substitute for fine aggregates (i.e., sand) because of ever depleting river sand deposits and implementing stringent sand mining regulations. Development of such alternate fine aggregate using an affluently available industrial by-product is commendable. This study endeavors to develop geopolymer mortar (GPM) using fly ash based sand (FAB sand) as an alternate fine aggregate, demonstrates its performance by comparing with river sand and proposes a suitable mix design methodology for the same. The novelty of the study lies in replacing river sand (100%) with FAB sand to manufacture GPM and thus, propose FAB sand as a potential novel construction material. Two sets of GPM cubes, one with 100% FAB sand while the other with 100% river sand, are made, considering NaOH molarity of 10, Na2SiO3/NaOH ratio of 1.5, curing temperature of 60 & 80°C, and curing period of 7, 14, and 28 days. Flowability, compressive strength, water absorption, morphological, and mineralogical properties of GPM cubes are further assessed. The results evidently show a high compressive strength of GPM cubes made with FAB sand. The findings of the study elucidate that FAB sand is a doable and practicable alternative to river sand in construction applications.
fly ash
FAB sand
river sand
alternate fine aggregate
geopolymer mortar
mix design methodology
leteči pepel
FAB agregat
rečni pesek
alternativni drobni agregat
geopolimerna malta
metodologija načrtovanja mešanic
true
false
true
American Society of Civil Engineers
Angleški jezik
Slovenski jezik
Neznano
2026-07-08 08:17:24
2026-07-08 08:37:32
2026-07-09 03:56:47
0000-00-00 00:00:00
2026
0
0
str. 1-14
issue 6
Vol. 38
Jun. 2026
0000-00-00
PostprintKoncna
Objavljeno
NiDoloceno
0000-00-00
0000-00-00
2026-03-21
620.1/.2
1943-5533
10.1061/JMCEE7.MTENG-21941
272854019
https://ascelibrary.org/doi/10.1061/JMCEE7.MTENG-21941
1
b072691a-7a94-11f1-bd8a-001a4af901a5
https://dirros.openscience.si/Dokument.php?lang=slv&id=47340
RAZ_Sekhar_Kummari_2026.pdf
RAZ_Sekhar_Kummari_2026.pdf
1
EA667402457E86E44FB894498693C094
c79134d831a0d75dbc77d07b61c1f22064ab8ccdde3c9ef22243630b5a41434a
ef38414d-7a96-11f1-bd8a-001a4af901a5
https://dirros.openscience.si/Dokument.php?lang=slv&id=47341
Zavod za gradbeništvo Slovenije
0
0
0