Impact of Al(OH)3 addition to POFA on the compressive strength of POFA alkali-activated mortar

Babatunde Abiodun Salami; Megat Azmi Megat Johari; Zainal Arifin Ahmad; Mohammed Maslehuddin; Adeshina Adewale Adewumi

doi:10.1016/j.conbuildmat.2018.09.076

Impact of Al(OH)₃ addition to POFA on the compressive strength of POFA alkali-activated mortar

Babatunde Abiodun Salami^*, Megat Azmi Megat Johari, Zainal Arifin Ahmad, Mohammed Maslehuddin, Adeshina Adewale Adewumi

^*Awdur cyfatebol y gwaith hwn

Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

22 Dyfyniadau (Scopus)

Crynodeb

The study reports the influence of Al(OH)₃ as alumina source on the compressive strength of POFA alkali-activated mortar (POFA AAM). The synthesis of the developed POFA AAM stems from the mixture proportioning of Na₂SiO_3(aq), NaOH_(aq), POFA and Al(OH)₃. At the 28th day, after 65 °C heat and laboratory curing, the compressive strength of the POFA AAM were tested. It was observed that the compressive strength of all the POFA AAM specimens with Al(OH)₃ addition were lower than those of the specimens without Al(OH)₃ addition. The only exception was with the POFA AAM at 2% Al(OH)₃ addition in all NaOH molarities. The compressive strength losses recorded in some POFA AAM were due to weak interfacial zones creation between the activated products and the zeolitic phases, which became more apparent at higher Al(OH)₃ additions. The strength development of the POFA AAM microstructure was studied with the aid of SEM/EDS, XRD and FTIR.

Iaith wreiddiol	Saesneg
Tudalennau (o-i)	65-82
Nifer y tudalennau	18
Cyfnodolyn	Construction and Building Materials
Cyfrol	190
Dynodwyr Gwrthrych Digidol (DOIs)	https://doi.org/10.1016/j.conbuildmat.2018.09.076
Statws	Cyhoeddwyd - 22 Medi 2018
Cyhoeddwyd yn allanol	Ie

Mynediad at Ddogfen

10.1016/j.conbuildmat.2018.09.076

Ffeiliau eraill a chysylltiadau

Dolen i’r cyhoeddiad yn Scopus

Dyfynnu hyn

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title = "Impact of Al(OH)3 addition to POFA on the compressive strength of POFA alkali-activated mortar",

abstract = "The study reports the influence of Al(OH)3 as alumina source on the compressive strength of POFA alkali-activated mortar (POFA AAM). The synthesis of the developed POFA AAM stems from the mixture proportioning of Na2SiO3(aq), NaOH(aq), POFA and Al(OH)3. At the 28th day, after 65 °C heat and laboratory curing, the compressive strength of the POFA AAM were tested. It was observed that the compressive strength of all the POFA AAM specimens with Al(OH)3 addition were lower than those of the specimens without Al(OH)3 addition. The only exception was with the POFA AAM at 2% Al(OH)3 addition in all NaOH molarities. The compressive strength losses recorded in some POFA AAM were due to weak interfacial zones creation between the activated products and the zeolitic phases, which became more apparent at higher Al(OH)3 additions. The strength development of the POFA AAM microstructure was studied with the aid of SEM/EDS, XRD and FTIR.",

author = "Salami, {Babatunde Abiodun} and {Megat Johari}, {Megat Azmi} and Ahmad, {Zainal Arifin} and Mohammed Maslehuddin and Adewumi, {Adeshina Adewale}",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd",

year = "2018",

month = sep,

day = "22",

doi = "10.1016/j.conbuildmat.2018.09.076",

language = "English",

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T1 - Impact of Al(OH)3 addition to POFA on the compressive strength of POFA alkali-activated mortar

AU - Salami, Babatunde Abiodun

AU - Megat Johari, Megat Azmi

AU - Ahmad, Zainal Arifin

AU - Maslehuddin, Mohammed

AU - Adewumi, Adeshina Adewale

PY - 2018/9/22

Y1 - 2018/9/22

N2 - The study reports the influence of Al(OH)3 as alumina source on the compressive strength of POFA alkali-activated mortar (POFA AAM). The synthesis of the developed POFA AAM stems from the mixture proportioning of Na2SiO3(aq), NaOH(aq), POFA and Al(OH)3. At the 28th day, after 65 °C heat and laboratory curing, the compressive strength of the POFA AAM were tested. It was observed that the compressive strength of all the POFA AAM specimens with Al(OH)3 addition were lower than those of the specimens without Al(OH)3 addition. The only exception was with the POFA AAM at 2% Al(OH)3 addition in all NaOH molarities. The compressive strength losses recorded in some POFA AAM were due to weak interfacial zones creation between the activated products and the zeolitic phases, which became more apparent at higher Al(OH)3 additions. The strength development of the POFA AAM microstructure was studied with the aid of SEM/EDS, XRD and FTIR.

AB - The study reports the influence of Al(OH)3 as alumina source on the compressive strength of POFA alkali-activated mortar (POFA AAM). The synthesis of the developed POFA AAM stems from the mixture proportioning of Na2SiO3(aq), NaOH(aq), POFA and Al(OH)3. At the 28th day, after 65 °C heat and laboratory curing, the compressive strength of the POFA AAM were tested. It was observed that the compressive strength of all the POFA AAM specimens with Al(OH)3 addition were lower than those of the specimens without Al(OH)3 addition. The only exception was with the POFA AAM at 2% Al(OH)3 addition in all NaOH molarities. The compressive strength losses recorded in some POFA AAM were due to weak interfacial zones creation between the activated products and the zeolitic phases, which became more apparent at higher Al(OH)3 additions. The strength development of the POFA AAM microstructure was studied with the aid of SEM/EDS, XRD and FTIR.

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DO - 10.1016/j.conbuildmat.2018.09.076

M3 - Article

AN - SCOPUS:85053802608

SN - 0950-0618

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JO - Construction and Building Materials

JF - Construction and Building Materials

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