Ahmad Rizwan Mumtaz se je rodil 22. februarja 1976 v Sahiwalu, Pakistanu. Srednjo šolo je zaključil leta 1994 v Sahiwalu. Leta 1995 se je preselil v Severno Ciper, kjer je februarja 2000 diplomiral iz gradbeništva na Univerzi Near Eas.
Svojo poklicno kariero je začel avgusta 2000 kot pripravnik inženir. Leta 2002 se je vpisal na magistrski program hidrotehnike (oddelek za gradbeništvo) na Tehniški univerzi v Lahoreju, Pakistan. Magisterij iz inženirstva hidrotehnike je zaključil novembra 2004. Istega leta se je zaposlil pri enem vodilnih svetovalcev v Pakistanu, ACE Transportation Engineering Services Ltd. v Lahoreju, kot mlajši projektant.
Maja 2005 se je zaposlil na Oddelku za kmetijstvo Punjab kot pomočnik inženirja za kmetijstvo, kjer je opravljal naloge javnega uslužbenca. Leta 2007 se je preselil v Savdsko Arabijo, kjer se je zaposlil pri podjetju Railway Project Management Company kot višji inženir na gradbišču. Podjetje je bilo odgovorno za gradnjo in nadzor 2200 km dolgega železniškega omrežja v Savdski Arabiji. Tam je delal skoraj 8 let in osebno nadzoroval predajo projekta naročniku.
Leta 2013 se je prijavil za doktorski študij na Univerzi v Mariboru, kamor je bil istega leta tudi sprejet. Med študijem na UM se je ponovno odločil z delo v Savdski Arabiji na enem največjih metro projektov na svetu, metroju v Rijadu, kot pomočnik vodje gradnje. Septembra 2015 je zapustil Savdsko arabijo in se ponovno posvetil doktoratu. Pod mentorstvom doc. dr. Gregorja Kravanje je od leta 2022 opravljal raziskovalno delo na Katedri za materiale, kjer je raziskoval na področju ultra visokozmogljivega betona. To delo je privedlo do uspešne objave dveh znanstvenih člankov, ki sta bila široko brana in citirana na Scopusu.
Doktorska disartacija zajema razvoj novega visoko zmogljivega betona (UHPC), ojačenega z bazaltnmi vlakni, z vključevanjem hkratnih samočistilnih in samosvetlečih funkcij, kar utira pot trajnostnemu napredku v gradbeništvu. Nove zelene formulacije UHPC so bile razvite z vključitvijo dodatnih cementnih materialov in optimizacijo razmerja med vodo in vezivom, čemur je sledila uporaba bazaltnih vlaken za povečanje trdnosti in nateznosti. Izdelani vzorci z visoko gostoto pakiranja delcev kažejo zadostno obdelovalnost in tlačno trdnost do 136 MPa ter, pri dodajanju bazaltnih vlaken, opazno zmanjšanje krhkosti. Notranja mikrostruktura bazaltnih vlaken je bila gladka, homogeno porazdeljena in dobro oprijeta na matriko UHPC. Da bi zagotovili želeni dolgotrajni videz dekorativnega UHPC in zmanjšali prihodnje stroške vzdrževanja, je bila uvedena časovno učinkovita strategija za ustvarjanje biomimetičnega dizajna površine, ki oddaja svetlobo. Vzorci kažejo visoko hrapavost površine, za katero so značilne mikro do nano praznine, ki kažejo superhidrofobnost s stičnimi koti, ki segajo do 155,45°. To spremlja kot kotaljanja, ki se zmanjša na 7,1◦, kar izboljšuje njihove samočistilne lastnosti. Funkcija samosvetljenja je prikazala intenzivno začetno svetlobno emisijo in ponudila potencialno energetsko učinkovito nočno osvetlitev.
Ahmad Rizwan Mumtaz was born on 22 February 1976 in Sahiwal, Pakistan. He completed Higher Secondary School in Sahiwal in 1994. In 1995, he moved to North Cyprus to pursue a degree in Civil Engineering at Near East University, graduating in February 2000.
His professional career began as a Trainee Engineer in August 2000. In 2002, he enrolled in a Master of Science program in Water Resources Engineering (Department of Civil Engineering) at the University of Engineering and Technology, Lahore, Pakistan. He completed the M.Sc. in Water Resources Engineering in November 2004. That same year, he joined one of Pakistan’s leading consultants, ACE Transportation Engineering Services Ltd., Lahore, as a Junior Design Engineer, contributing as a Hydraulics and Hydrology designer for road networks.
In May 2005, he joined the Punjab Agriculture Department as an Assistant Agriculture Engineer, serving as a public servant. In 2007, he moved to Saudi Arabia and secured employment with the Railway Project Management Company as a Senior Site Engineer. The company was responsible for the construction and supervision of a 2200 km railway network in Saudi Arabia. He spent nearly 8 years there, personally overseeing the handover of the project to the client.
In 2013, he applied for Doctorate studies at the University of Maribor and was granted admission that same year. During his time at UM, he received an opportunity to work once again in Saudi Arabia on one of the world’s largest Metro Projects, the Riyadh Metro, as an Assistant Construction Manager. He left the job in September 2015 to resume his Doctorate Under the of Assist. Prof. Dr. Gregor Kravanja, he has been conducting research at the Chair of Materials since 2022, focusing on Ultra High-Performance Concrete. This work has resulted in the successful publication of two scientific articles, which have been widely read and cited on Scopus.
This study explores the potential of using basalt reinforced UHPC by incorporating simultaneously self-cleaning and self-luminescent features, paving the way for sustainable advancements in civil engineering. New green formulations of UHPC were developed by integrating supplementary cementitious materials and optimizing water to the binder ratio, followed by using basalt fibers to enhance strength and ductility. The fabricated samples with high particle-packing density exhibit sufficient workability and compressive strength up to 136 MPa, and, when incorporating basalt fibers, a notable reduction in brittleness. The inner microstructure of basalt fibers was observed to be smooth, homogeneously distributed, and well adhered to the UHPC matrix. To ensure the desired long-lasting visual appearance of decorative UHPC and reduce future maintenance costs, a time-effective strategy for creating a light-emitting biomimetic surface design was introduced. The samples exhibit high surface roughness, characterized by micro to nano-scale voids, displaying superhydrophobicity with contact angles reaching up to 155.45◦. This is accompanied by roll-off angles decreasing to 7.1◦, highlighting their self-cleaning features. The self-luminescence feature showcased intense initial light emission, offering a potential energy-efficient nighttime lighting solution.