Ailar Hajimohammadi

Senior Lecturer

Senior Lecturer at the School of Civil and Environmental Engineering

Dr Ailar Hajimohammadi received her Ph.D. on sustainable cementitious materials from the University of Melbourne in 2011. She worked in the international technology company AspenTech for four years (2011-2015) where she gained experience in industry consultation and training. She did three years of postdoctoral research at the Infrastructure Engineering Department, University of Melbourne (2015-2018) before joining the faculty at the University of New South Wales. Ailar’ s research examines the chemistry of materials to develop innovative construction elements with attractive properties. She is also investigating waste management and resource recovering strategies towards circular economy in civil and construction projects.

Journal articles
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Alnahhal MF; Hamdan A; Hajimohammadi A; Kim T, 2021, 'Effect of rice husk ash-derived activator on the structural build-up of alkali activated materials', Cement and Concrete Research, vol. 150, pp. 106590 - 106590, http://dx.doi.org/10.1016/j.cemconres.2021.106590
2021
Siddika A; Hajimohammadi A; Mamun MAA; Alyousef R; Ferdous W, 2021, 'Waste glass in cement and geopolymer concretes: A review on durability and challenges', Polymers, vol. 13, http://dx.doi.org/10.3390/polym13132071
2021
Alnahhal MF; Kim T; Hajimohammadi A, 2021, 'Distinctive rheological and temporal viscoelastic behaviour of alkali-activated fly ash/slag pastes: A comparative study with cement paste', Cement and Concrete Research, vol. 144, pp. 106441 - 106441, http://dx.doi.org/10.1016/j.cemconres.2021.106441
2021
Alnahhal MF; Kim T; Hajimohammadi A, 2021, 'Waste-derived activators for alkali-activated materials: A review', Cement and Concrete Composites, vol. 118, pp. 103980 - 103980, http://dx.doi.org/10.1016/j.cemconcomp.2021.103980
2021
Alnahhal MF; Kim T; Hajimohammadi A, 2020, 'Evolution of flow properties, plastic viscosity, and yield stress of Alkali-activated fly ash/slag pastes', RILEM Technical Letters, vol. 5, pp. 141 - 149, http://dx.doi.org/10.21809/rilemtechlett.2020.123
2020
Kashani A; Ngo TD; Nguyen TN; Hajimohammadi A; Sinaie S; Mendis P, 2020, 'The effects of surfactants on properties of lightweight concrete foam', Magazine of Concrete Research, vol. 72, pp. 163 - 172, http://dx.doi.org/10.1680/jmacr.18.00242
2020
Delhomme F; Hajimohammadi A; Almeida A; Jiang C; Moreau D; Gan Y; Wang X; Castel A, 2020, 'Physical properties of Australian hurd used as aggregate for hemp concrete', Materials Today Communications, vol. 24, pp. 100986 - 100986, http://dx.doi.org/10.1016/j.mtcomm.2020.100986
2020
Kashani A; Ngo TD; Hajimohammadi A, 2019, 'Effect of recycled glass fines on mechanical and durability properties of concrete foam in comparison with traditional cementitious fines', Cement and Concrete Composites, vol. 99, pp. 120 - 129, http://dx.doi.org/10.1016/j.cemconcomp.2019.03.004
2019
Liu L; Miramini S; Hajimohammadi A, 2019, 'Characterising fundamental properties of foam concrete with a non-destructive technique', Nondestructive Testing and Evaluation, vol. 34, pp. 54 - 69, http://dx.doi.org/10.1080/10589759.2018.1525378
2019
Hajimohammadi A; Ngo T; Vongsvivut J, 2019, 'Interfacial chemistry of a fly ash geopolymer and aggregates', Journal of Cleaner Production, vol. 231, pp. 980 - 989, http://dx.doi.org/10.1016/j.jclepro.2019.05.249
2019
Hajimohammadi A; Ngo T; Provis JL; Kim T; Vongsvivut J, 2019, 'High strength/density ratio in a syntactic foam made from one-part mix geopolymer and cenospheres', Composites Part B: Engineering, vol. 173, pp. 106908 - 106908, http://dx.doi.org/10.1016/j.compositesb.2019.106908
2019
Kristombu Baduge S; Mendis P; San Nicolas R; Nguyen K; Hajimohammadi A, 2019, 'Performance of lightweight hemp concrete with alkali-activated cenosphere binders exposed to elevated temperature', Construction and Building Materials, vol. 224, pp. 158 - 172, http://dx.doi.org/10.1016/j.conbuildmat.2019.07.069
2019
Kim T; Alnahhal MF; Nguyen QD; Panchmatia P; Hajimohammadi A; Castel A, 2019, 'Initial sequence for alkali-silica reaction: Transport barrier and spatial distribution of reaction products', Cement and Concrete Composites, vol. 104, pp. 103378 - 103378, http://dx.doi.org/10.1016/j.cemconcomp.2019.103378
2019
Hajimohammadi A; Ngo T; Mendis P, 2018, 'Enhancing the strength of pre-made foams for foam concrete applications', Cement and Concrete Composites, vol. 87, pp. 164 - 171, http://dx.doi.org/10.1016/j.cemconcomp.2017.12.014
2018
Kashani A; Ngo TD; Nguyen TN; Hajimohammadi A; Sinaie S; Mendis P, 2018, 'The effects of surfactants on properties of lightweight concrete foam', Magazine of Concrete Research, pp. 1 - 10
2018
Liu L; Miramini S; Hajimohammadi A, 2018, 'Characterising fundamental properties of foam concrete with a non-destructive technique', Nondestructive Testing and Evaluation, pp. 1 - 16
2018
Hajimohammadi A; Ngo T; Kashani A, 2018, 'Glass waste versus sand as aggregates: The characteristics of the evolving geopolymer binders', Journal of Cleaner Production, vol. 193, pp. 593 - 603, http://dx.doi.org/10.1016/j.jclepro.2018.05.086
2018
Hajimohammadi A; Ngo T; Kashani A, 2018, 'Sustainable one-part geopolymer foams with glass fines versus sand as aggregates', Construction and Building Materials, vol. 171, pp. 223 - 231, http://dx.doi.org/10.1016/j.conbuildmat.2018.03.120
2018
Bagheri A; Nazari A; Hajimohammadi A; Sanjayan JG; Rajeev P; Nikzad M; Ngo T; Mendis P, 2018, 'Microstructural study of environmentally friendly boroaluminosilicate geopolymers', Journal of Cleaner Production, vol. 189, pp. 805 - 812
2018
Kashani A; Ngo TD; Hemachandra P; Hajimohammadi A, 2018, 'Effects of surface treatments of recycled tyre crumb on cement-rubber bonding in concrete composite foam', Construction and Building Materials, vol. 171, pp. 467 - 473, http://dx.doi.org/10.1016/j.conbuildmat.2018.03.163
2018
Hajimohammadi A; Ngo T; Mendis P; Nguyen T; Kashani A; van Deventer JSJ, 2017, 'Pore characteristics in one-part mix geopolymers foamed by H2O2: The impact of mix design', Materials & Design, vol. 130, pp. 381 - 391, http://dx.doi.org/10.1016/j.matdes.2017.05.084
2017
Hajimohammadi A; van Deventer JSJ, 2017, 'Characterisation of one-part geopolymer binders made from fly ash', Waste and Biomass Valorization, vol. 8, pp. 225 - 233, http://dx.doi.org/10.1007/s12649-016-9582-5
2017
Ngo T; Hajimohammadi A; Sanjayan J; Mendis P, 2017, 'Characterisation tests and design of foam concrete for prefabricated modular construction', Concrete Institute of Australia, vol. 43, pp. 43 - 50
2017
Hajimohammadi A; van Deventer JSJ, 2017, 'Solid reactant-based geopolymers from rice hull ash and sodium aluminate', Waste and Biomass Valorization, vol. 8, pp. 2131 - 2140, http://dx.doi.org/10.1007/s12649-016-9735-6
2017
Hajimohammadi A; Ngo T; Mendis P, 2017, 'How does aluminium foaming agent impact the geopolymer formation mechanism?', Cement and Concrete Composites, vol. 80, pp. 277 - 286, http://dx.doi.org/10.1016/j.cemconcomp.2017.03.022
2017
Kashani A; Ngo TD; Mendis P; Black JR; Hajimohammadi A, 2017, 'A sustainable application of recycled tyre crumbs as insulator in lightweight cellular concrete', Journal of cleaner production, vol. 149, pp. 925 - 935, http://dx.doi.org/10.1016/j.jclepro.2017.02.154
2017
Hajimohammadi A; Ngo T; Mendis P; Kashani A; van Deventer JSJ, 2017, 'Alkali activated slag foams: the effect of the alkali reaction on foam characteristics', Journal of Cleaner Production, vol. 147, pp. 330 - 339, http://dx.doi.org/10.1016/j.jclepro.2017.01.134
2017
Hajimohammadi A; Ngo T; Mendis P; Sanjayan J, 2017, 'Regulating the chemical foaming reaction to control the porosity of geopolymer foams', Materials & Design, vol. 120, pp. 255 - 265, http://dx.doi.org/10.1016/j.matdes.2017.02.026
2017
Hajimohammadi A; van Deventer JSJ, 2016, 'Dissolution behaviour of source materials for synthesis of geopolymer binders: a kinetic approach', International Journal of Mineral Processing, vol. 153, pp. 80 - 86, http://dx.doi.org/10.1016/j.minpro.2016.05.014
2016
Provis JL; Hajimohammadi A; White CE; Bernal SA; Myers RJ; Winarski RP; Rose V; Proffen TE; Llobet A; van Deventer JSJ, 2013, 'Nanostructural characterization of geopolymers by advanced beamline techniques', Cement and Concrete Composites, vol. 36, pp. 56 - 64, http://dx.doi.org/10.1016/j.cemconcomp.2012.07.003
2013
Hajimohammadi A; Provis JL; Van Deventer JSJ, 2011, 'Time-resolved and spatially-resolved infrared spectroscopic observation of seeded nucleation controlling geopolymer gel formation', Journal of colloid and interface science, vol. 357, pp. 384 - 392, http://dx.doi.org/10.1016/j.jcis.2011.02.045
2011
Hajimohammadi A; Provis JL; van Deventer JSJ, 2011, 'The effect of silica availability on the mechanism of geopolymerisation', Cement and Concrete Research, vol. 41, pp. 210 - 216, http://dx.doi.org/10.1016/j.cemconres.2011.02.001
2011
Hajimohammadi A; Provis JL; Van Deventer JSJ, 2010, 'Effect of alumina release rate on the mechanism of geopolymer gel formation', Chemistry of Materials, vol. 22, pp. 5199 - 5208, http://dx.doi.org/10.1021/cm101151n
2010
Hajimohammadi A; Provis JL; Van Deventer JSJ, 2008, 'One-part geopolymer mixes from geothermal silica and sodium aluminate', Industrial & Engineering Chemistry Research, vol. 47, pp. 9396 - 9405, http://dx.doi.org/10.1021/ie8006825
2008
Hajimohammadi A; Taghikhani V; Ghotbi, Cyrus, Nemati Lay, Ebrahim , 2006, 'On the Selection of Proper Thermodynamic Conditions for the Gas Antisolvent Process (GAS) at Nearcritical and Supercritical Conditions', Iranian Journal of Chemical Engineering, vol. 3, pp. 17 - 22
2006
Conference Papers
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Alnahhal M; Kim T; Hajimohammadi A, 2020, 'Rheological Behaviour and Flow Properties of Alkali-Activated Materials', Guimaraes, Portugal, presented at the 3rd RILEM Spring Convention and Conference (RSCC 2020), Guimaraes, Portugal, 09 March 2020 - 14 March 2020, http://dx.doi.org/10.1007/978-3-030-76551-4_24
2020
Hajimohammadi A; Ngo T, 2018, 'A Novel Non-Combustible Lightweight Core for Prefabricated Sandwich Panels', presented at fib Congress 2018
2018
Al-Dujaili A; N. E; Sanjayan J; A. H, 2018, 'Effect of Shrinkage and Density on the Fire Insulation of Lightweight Composite Sandwich Panels', presented at Fib congress 2018
2018
Hajimohammadi A; Ngo T; Mendis P, 2016, 'The effect of aluminium reaction on formation mechanism and structural properties of geopolymers', CRC Press, pp. 433, presented at Mechanics of Structures and Materials XXIV: Proceedings of the 24th Australian Conference on the Mechanics of Structures and Materials (ACMSM24, Perth, Australia, 6-9 December 2016)
2016
Hajimohammadi A; Provis JL; van Deventer JSJ, 2009, 'The effect of nanoparticle seeding on the mechanism of one-part geopolymer gel formation', pp. 23 - 27, presented at proceedings of 8th World Congress of Chemical Engineering (WCCE8), Montreal, Canada
2009
Book Chapters
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Provis JL; Hajimohammadi A; Rees CA; Van Deventer JSJ, 2009, 'Analysing and manipulating the nanostructure of geopolymers', in Bittnar Z; Bartos PJM; Nemecek J; Smilauer V; Zeman J (ed.), Nanotechnology in Construction 3, Springer, Berlin, Heidelberg, pp. 113 - 118, http://dx.doi.org/10.1007/978-3-642-00980-8_14
2009
  • The Award of Excellence, Aspen Technology Field Operations, industry award ($5000)
  • $1250 MATS travel scholarship, University of Melbourne
  • $1000 RT-CAS travel scholarship, University of Melbourne
  • $1000 travel assistance scholarship, PFPC centre
  • $2000 travel grant, Geopolymer Alliance
  • one of the positions for the Cheiron Synchrotron School at Spring 8 in Japan ($5000)
  • $30,000 Scholarship from industry “Geopolymer Alliance”
  •  $1200 Travelling scholarship, NSRRC (Taiwan).
  • Ian Potter Foundation $1500 travel grant
  • 72 hours of beamtime (PDF-CT), Advance Photon Source,  USA (~$57,600)
  • School of Engineering International Fellowship ($8000)
  • 24 hours of Neutron beamtime, Oak Ridge National Lab, USA (~$45,269)
  • 96 hours of Australian Synchrotron beamtime (~$76,800 )
  • Dyson Fellowship, international mobility grant (~5000)
  • Sustainability Victoria research grant ($100,000) 
  • 96 hours Synchrotron FTIR beamtime, Australian Synchrotron (~$76,800)