Lateef N Assi
@mpu.edu.iq
Civil Engineering
Mazaya University College
EDUCATION
• 2018 - Ph.D., Civil Engineering, University of South Carolina-Columbia
• 2017 - M.S., Engineering management, University of South Carolina-Columbia
• 2011 - M.S., Civil Engineering\ Structure, University of Basrah
• 2008 - B.S., Civil Engineering, University of Basrah
RESEARCH INTERESTS
Sustainable Concrete; Civil Engineering Materials; Reinforced Concrete
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
Mohammed Abbas Mousa, Mustafasanie M. Yussof, Thulfiqar S. Hussein, Lateef N. Assi, and SeyedAli Ghahari
MDPI AG
Digital image correlation (DIC) is an optical technique used to measure surface displacements and strains in materials and structures. This technique has demonstrated significant utility in structural examination and monitoring. This manuscript offers a comprehensive review of the contemporary research and applications that have leveraged the DIC technique in laboratory-based structural tests. The reviewed works encompass a broad spectrum of structural components, such as concrete beams, columns, pillars, masonry walls, infills, composite materials, structural joints, steel beams, slabs, and other structural elements. These investigations have underscored the efficacy of DIC as a metrological instrument for the precise quantification of surface deformation and strain in these structural components. Moreover, the constraints of the DIC technique have been highlighted, especially in scenarios involving extensive or complex test configurations. Notwithstanding these constraints, the effectiveness of the DIC methodology has been validated as a strain measurement instrument, offering numerous benefits such as non-invasive operation, full-field measurement capability, high precision, real-time surveillance, and compatibility with integration into other measurement instruments and methodologies.
Catherine De Wolf, Kealy Carter, Lateef Assi, Adeyemi Adesina, Lisbeth M. Ottosen, Adolfo Quesada-Román, Zora Vrcelj, and Greg Foliente
Elsevier BV
Zeinab Nasser Eddine, Jamal Khatib, Adel El Kordi, and Lateef Assi
Springer Science and Business Media LLC
Yasar Ameer Ali, Lateef Najeh Assi, Hussein Abas, Hussein R. Taresh, Canh N. Dang, and SeyedAli Ghahari
MDPI AG
Reinforced concrete deep beams are a vital member of infrastructures such as bridges, shear walls, and foundation pile caps. Thousands of dollars and human lives are seriously threatened due to shear failure, which have developed in deep beams containing web openings. This paper investigates numerically the overall behavior of simply supported concrete deep beams reinforced with carbon fiber-reinforced polymer (CFRP) sheets through forty specimens grouped in four groups. The numerical analysis results agreed well with the experimental results in the literature, particularly the visual failure initiation with a failure load difference of nearly 7%. Finite element analyses indicated that the presence of an opening with considerable width reduced the failure load by about 71% compared to the corresponding solid specimens. In addition, the reinforced concrete deep beam samples started to behave differently when the (b/h) ratio increased more than (2.0). The findings showed that the compression stress strut pathway had been disrupted by the web opening leading to stress redistribution, and the structure will behave as two separate members. Thus, the upper web-opening part sustained the most stress, while the part under the web-opening did not show any stress concentration. The numerical stress distribution results showed that the attributed reason is that rebars and openings helped redirect the stresses to the compression strut. Using CFRP sheets with a width of more than 160 mm significantly improved the reinforced concrete deep beam with web-opening due to the increasing confinement to the upper part of the reinforced concrete deep beams with the opening.
Mohammed Abbas Mousa, Mustafasanie M. Yussof, Lateef N. Assi, and SeyedAli Ghahari
MDPI AG
This research provides a practical guideline for Digital Image Correlation (DIC) data variations minimization in structural engineering through simple image processing techniques. The main objective of this research is to investigate the Pixel Averaging (P.A.) effect on the differential strain Diff(εx) variations. Three concrete arches were tested with three-point bending using the DIC technique for strain measurements. The measured strains are obtained through two virtual horizontal extensometers in the middle of each arch. The Diff(εx) was selected to avoid other 2D-DIC issues, such as the sample-camera out-of-plane movement. Three image cases, namely, one, ten, and twenty averaged images, were used for DIC analysis of each arch. The conditions of each image case are assessed by computing the Diff(εx) variance and the linear least square criterion (R2) between the two extensometers. The second objective is to examine the speckles’ dilation effects on the speckle pattern density and surface component quality utilizing the Image Erode (I.E.) technique. The (P.A.) technique provided consistent differential strain Diff(εx) values with a variance reduction of up to (90%) when averaged images were used. The (R2) has considerably increased (from 0.46, 0.66, 0.91 to 0.90, 0.96, 0.99), respectively, for the three samples. Moreover, the (I.E.) technique provided qualitatively denser speckles with a highly consistent DIC surface component.
Shabnam Ghotbi, Mohammed Abbas Mousa, Lateef Najeh Assi, and SeyedAli Ghahari
MDPI AG
The current study aimed to evaluate the influence of different sintering temperatures on the properties of copper aluminum oxide (CuAlO2) pellets synthesized from copper oxide (CuO) and aluminum hydroxide (Al(OH)3) for application in smart infrastructure systems. The pellets were sintered at 400 K, 1000 K, and 1300 K, in the presence of nitrogen gas flow to reduce the amount of oxygen availability. The CuAlO2 sintered nanoparticles were chemically analyzed by X-ray diffractometry, and the nanostructure of the materials was studied by scanning electron microscopy. The transmittance of the sintered materials was examined by ultraviolet/visible (UV/Vis) spectrophotometry, and 88% transparency was observed for the pellets sintered at 1300 K. Electrical conductivity was measured at 0.905 mS/cm, indicating a semiconducting behavior.
Yasir A J Al- Hamadani, Anfal Majid Salal, Zainab Bahaa, Lateef N. Assi, and Ali Sadiq Resheq
International University of Sarajevo
The primary task that is facing most developing countries is the untreated disposal of wastewater into the water bodies. In order to meet the water needs of future generations, the integrated water resources should be managed within a sustainable method. This study illustrates the assessment and judgment of the suitability of Tigris River for drinking purposes using water quality index (WQI) and the selection of the mostly significant water quality WQ parameters that affect Tigris River deterioration using Artificial Neural Network (ANN). Along with Baghdad city, nine stations of Tigris River were assessed for fourteen physicochemical parameters. Results, Tigris River, was classified (poor – polluted) according to the Weighted arithmetic WQI (WA-WQI) with turbidity and Total dissolved solids (TDS) are the most parameter affecting on the WQ.
A. A. Shubbar, M. S. Nasr, G. M. Sadiqul Islam, Z. S. Al-Khafaji, M. Sadique, K. Hashim, and L. N. Assi
Lecture Notes in Civil Engineering Springer Singapore
Mohammed Abbas Mousa, Mustafasanie M. Yussof, Ufuoma Joseph Udi, Fadzli Mohamed Nazri, Mohd Khairul Kamarudin, Gerard A. R. Parke, Lateef N. Assi, and Seyed Ali Ghahari
MDPI AG
A vision-based approach has been employed in Structural Health Monitoring (SHM) of bridge infrastructure. The approach has many advantages: non-contact, non-destructive, long-distance, high precision, immunity from electromagnetic interference, and multiple-target monitoring. This review aims to summarise the vision- and Digital Image Correlation (DIC)-based SHM methods for bridge infrastructure because of their strategic significance and security concerns. Four different bridge types were studied: concrete, suspension, masonry, and steel bridge. DIC applications in SHM have recently garnered attention in aiding to assess the bridges’ structural response mechanisms under loading. Different non-destructive diagnostics methods for SHM in civil infrastructure have been used; however, vision-based techniques like DIC were only developed over the last two decades, intending to facilitate damage detection in bridge systems with prompt and accurate data for efficient and sustainable operation of the bridge structure throughout its service life. Research works reviewed in this article demonstrated the DIC capability to detect damage such as cracks, spalling, and structural parameters such as deformation, strains, vibration, deflection, and rotation. In addition, the reviewed works indicated that the DIC as an efficient and reliable technique could provide sustainable monitoring solutions for different bridge infrastructures.
Ali Alsalman, Lateef N. Assi, Rahman S. Kareem, Kealy Carter, and Paul Ziehl
Elsevier BV
Lateef Assi, Ali Alsalman, David Bianco, Paul Ziehl, Jamal El-Khatib, Mahmoud Bayat, and Falah H. Hussein
Elsevier BV
R. S. Kareem, Lateef N. Assi, Ali Alsalman, and Ahmed Al-Manea
AIP Conference Proceedings AIP Publishing
Lateef N. Assi, Ali Alsalman, Yasir A J Al-Hamadani, Rahman Kareem, and Hussein M. Ashour Al.Khuzaie
IOP Publishing
Concrete is the most consumed material after water, and it is responsible for 10% of total CO2 emissions worldwide. Supplementary cementitious materials, including fly ash, silica fume, and granulated furnace slag, have been utilized to improve the mechanical and durability of concrete and reduce Portland cement consumptions. The paper aims to explore the effect of the supplementary cementitious materials’ replacement on concrete foundation properties. It was found that fly ash significantly improved durability properties and workability. However, it delays the initial time setting and early compressive strength enhancements. At the same time, silica fume decreased concrete permeability and enhanced compressive strength. The incorporation of 15% silica fume can enhance the compressive by 21% compared to control concrete. On the other hand, silica fume can decrease workability remarkably.
Jad Bawab, Jamal Khatib, Hilal El-Hassan, Lateef Assi, and Mehmet Serkan Kırgız
MDPI AG
Among many alternatives to replace sand in cement-based materials, cathode-ray tube (CRT) glass emerges as a suitable replacement for many reasons. This paper provides a state-of-the-art review on the use of cathode-ray tube (CRT) glass waste in cement-based concrete and mortar in accordance with PRISMA guidelines. The new aspects of the research are the literature coverage up to 2021 which would make it distinct from other articles. This review would act as a catalyst to use CRT glass waste in concrete mixtures. A total of 61 papers from literature were analyzed with emphasis on the fresh, mechanical, and durability performance of cement-based materials containing CRT glass waste as fine aggregates. The analysis revealed that the majority of the studies agreed that replacing sand with CRT glass waste increased the consistency where the low permeability of the CRT glass caused this effect. Strength of cement-based materials, on the other hand, decreased due to the weaker bond between the cement paste and the aggregates. The low water absorption of the CRT glass defined its effect on the durability properties of cement-based materials, such as drying shrinkage and water absorption capacity, leading to an improved performance. In addition, CRT glass waste activated the alkali-silica reaction in cement-based materials causing undesirable expansion. Additionally, several investigations proposed solutions to mitigate the lead leaching associated with the lead content found in the CRT glass. In general, it was assessed that CRT glass waste could be a valid component in the production of sustainable cement-based materials, especially for radiation shielding applications. The recommendations for future research are also suggested.
Ali Alsalman, Lateef N. Assi, Shabnam Ghotbi, SeyedAli Ghahari, and Ali Shubbar
Elsevier BV
Lateef N. Assi, Ali Majdi, Yasir Alhamadani, and Paul Ziehl
Thomas Telford Ltd.
Cement manufacture is one of the reasons for society's increasing carbon dioxide footprint. The development of a sustainable construction material is therefore needed to replace Portland cement fully or partially in building construction applications. Geopolymer concrete is a sustainable cementitious material, which is claimed to reduce carbon dioxide emissions and utilise waste materials such as fly ash, metakaolin and blast-furnace slag. Fly-ash-based geopolymer concrete with an activating solution of a mixture of silica fume, sodium hydroxide and water was investigated. Four Portland cement replacement weight ratios (0%, 5%, 10% and 15% by weight of fly ash) were studied. The effects of the Portland cement replacement on the early geopolymerisation process, compressive strength, modulus of elasticity and Poisson's ratio were investigated. Acoustic emission monitoring results showed that the early geopolymerisation process was enhanced when Portland cement replacement was increased. The compressive strength and modulus of elasticity were significantly increased when the Portland cement ratio increased, while Poisson's ratio was adversely affected.
V. Soltangharaei, R. Anay, L. Assi, M. Bayat, J.R. Rose, and P. Ziehl
Elsevier BV
Lateef N. Assi, Ali Alsalman, Kealy Carter, and Paul Ziehl
Elsevier
Lateef N. Assi, Kealy Carter, Edward Deaver, and Paul Ziehl
Elsevier BV
Lateef N. Assi, Yasir A.J. Al-Hamadani, Edward (Eddie) Deaver, Vafa Soltangharaei, Paul Ziehl, and Yeomin Yoon
Elsevier BV
SeyedAli Ghahari, Lateef N. Assi, Ali Alsalman, and Kürşat E. Alyamaç
MDPI AG
Due to the need for high-performance and sustainable building materials, the investigation of the determination of fracture toughness of cement paste using new and sustainable materials, such as cellulose nanocrystals (CNCs) is worthwhile. Contrary to other well-known nano-reinforcement particles, such as carbon nanotubes, CNCs are less toxic; therefore, they have less safety and environmental risks. Fracture behavior of cement paste has been studied intensively for a long time. However, the incorporation of new materials in the cement paste, such as cellulose nanocrystal materials (CNCs), has not been fully investigated. In this paper, the fracture behavior, compressive strength, and hydration properties of cement paste reinforced with cellulose nanocrystal particles were studied. At the age of 3, 7, and 28 days, a three-point bending moment test, and a calorimetry and thermogravimetric analysis, scanning electron microscopy (SEM), and energy dispersive x-ray spectroscopy (EDX) analysis were performed on the water-to-binder-weight ratio of 0.35 cement paste, containing 0.0%, 0.2%, and 1.0% volume cellulose nanocrystals. Results indicated that the fracture properties and compressive strength were improved for the sample containing 0.2% CNCs. Preliminary results indicate that CNCs can improve the fracture behavior of cementitious materials and can be considered as a renewable and sustainable material in construction.
Asmaa H. Hammadi, L. Assi and Falah H. Hussien
Doxorubicin (DOX) is widely used for anticancer, and it regards as one of the effective therapeutic drugs for solid tumors, such as carcinomas, sarcomas, and hematological malignancies. In this work, multiwall carbon nanotubes (MWCNTs) were selected as carriers to load DOX. The concentrations of (20mg) functionalization -CNTs as a nanocarrier were added to 100 ml of DOX aqueous solution (100 ppm). Each mixture was stirred for 24 hours at 25oC under dark conditions. The functionalization CNTs/DOX mixture was isolated by centrifuging for 15 min at a rate of 6000 rpm. Fourier Transform Infrared (FTIR) and Scanning Electron Microscope (SEM) were used to investigate the characterization of the nanocarrier. The results showed that the used dosage of CNT (1mg/ml) showed good loading ability for DOX over CNTs.
SeyedAli Ghahari, Lateef Assi, Kealy Carter, and Shabnam Ghotbi
American Society of Civil Engineers
Lateef N. Assi, Edward (Eddie) Deaver, and Paul Ziehl
Elsevier BV
RECENT SCHOLAR PUBLICATIONS
MOST CITED SCHOLAR PUBLICATIONS
INDUSTRY EXPERIENCE
• 2022 - Present: Department Head, Department of Civil Engineering, Mazaya University College, Iraq
• 2021 - Present: Assistant Professor, Department of Civil Engineering, Mazaya University College, Iraq
• 2019 - 2022: Research Affiliate, Civil and Environmental Engineering, University of South Carolina-Columbia, USA
• 2019 - 2021: Assistant Professor, Al-Mustaqbal University College, Iraq