Bachelor of Civil Engineering (Universiti of Malaya)
PhD in Structures and Materials Engineering (University of Surrey)
RESEARCH, TEACHING, or OTHER INTERESTS
Civil and Structural Engineering, Computational Mechanics, Mechanics of Materials, Ceramics and Composites
64
Scopus Publications
887
Scholar Citations
15
Scholar h-index
30
Scholar i10-index
Scopus Publications
Numerical Modelling of concrete beams strengthened with co-cured CFRP plates with a mussel shell modified epoxy (MME): An XFEM-CZM traction–separation framework with experimental works validation Syahrin Azhar, Sugiman Sugiman, Zaim Omar, Hilton Ahmad Multiscale and Multidisciplinary Modeling Experiments and Design, 2026 Concrete beam strengthening using externally bonded CFRP remains a key method for extending service life and capacity. A reliable, mechanism-aware prediction of load-bearing capacity is still required for design. A finite-element framework was therefore established and validated to predict the flexural response of beams strengthened with CFRP plates co-cured with a mussel-shell-modified epoxy (MME) adhesive. The model was implemented in ABAQUS/CAE using a traction separation law (TSL) framework. XFEM simulated concrete cracking, while CZM captured the debonding behaviour at the CFRP and adhesive with concrete interface using the same TSL parameters. Material and interface properties were obtained independently and utilised. The influences of CFRP bonded length, MME volume fraction, and pre-loading before strengthening were examined. Validation employed load–displacement curves, failure modes, and dedicated stress-distribution studies that mapped peel and shear along the plate ends and across the interface. It was found to transition with bonded length from tip-driven shear–tension to flexural debonding; pre-loading introduced carried crack damage that elevated local interface stresses and advanced the onset of debonding. The inclusion of MME enhanced composite action and delayed failure, with moderate filler content performing best; however, excessive content (≈10%) degraded adhesive properties. The predictions of ultimate load showed close agreement with tests: most debonding-controlled cases lay within ≤ 10%, the remainder within 10–20%, and a single boundary-dominated short-plate case exceeded 20%. The framework provides mechanistically transparent stress insight and numerically reliable capacity prediction for CFRP/MME strengthening, supporting sustainable and optimised strengthening configurations.
Flexural behaviour of lightweight foamed concrete partially encased steel beam Chris Ng, Norashidah Abd Rahman, Hilton Ahmad, Raudhah Ahmadi World Journal of Engineering, 2026 Purpose The universal beam is widely used as construction material due to its excellent strength-to-weight ratio but high slenderness ratio in the web steel section prone to lateral-torsional buckling (LTB) failure. To improve LTB resistance, the incorporation of modified foamed concrete (FC) in partially encased steel beam (PESB) is proposed. The FC-encased web section of steel beam promotes overall weight reduction and increases its specific strength. However, FC has substantially low strength, but incorporation of siliceous material (such as rice husk ash [RHA]) offers pozzolanic activity to offset the low strength in FC. This study explores the use of a modified FC to encase steel beam, where 40% of fine aggregate is replaced with RHA (hereafter referred to as RHA-FC) to enhance the load-bearing capacity and torsional rigidity. Addition of RHA mitigates the extraction of natural resource due to the reduction of fine aggregate consumption. This study aims to investigate the material properties of RHA-FC and measure the flexural strength of RHA-FC PESB. Design/methodology/approach The experimental work was performed to assess the compressive strength, splitting tensile strength, modulus of elasticity, Poisson ratio and fracture energy of plain FC, RHA-FC and normal concrete (NC). In addition, the flexural strength of PESB was evaluated through the four-point bending test. Findings RHA-FC improved the mechanical properties compared with the FC counterparts. Nevertheless, less satisfactory performance was seen in RHA-FC compared with NC. RHA-FC PESB achieved average 17.87% enhancement in ultimate bending moment compared with bare steel beam counterparts and can reduce lateral torsional buckling with associated zero torsional angle. Originality/value RHA-FC PESB substantially enhances stability and performance and offers a promising alternative in construction applications.
Utilization of high volume of cockle shell as sand replacement in bricks: Effects on density, compressive strength, water absorption and initial rate absorption , Nuradila Lile, S. Sugiman, , Nelly Majain, , Hilton Ahmad, , Lee Sim Yee, and Research on Engineering Structures and Materials, 2026 The construction industry’s dependence on natural sand has raised environmental concerns, leading to research on alternative sand replacement. This study investigates the incorporation of high-volume replacement of cockle shells (ranging between 30% - 100% replacement by volume) as a partial fine aggregate replacement in cement-sand brick production. Brick testing conducted includes brick density, compressive strength, water adsorption and initial rate adsorption. The constituent material testing revealed that cockle shells have a higher density (1687.27 kg/m³) than sand (1642.67 kg/m³) and a specific gravity of 2.73, contributing to improved compactness in the brick matrix. The results indicated that the compressive strength increased from 7.93 to 13.83 MPa at 28 days for 60% cockle shell replacement, while water absorption and IRA were reduced by about 50% (from 14 to 7%) and 50% (from 10.55 to 5.09 kg/m²/min), respectively. However, beyond a 60% replacement, strength declined due to increased porosity, with 100% recording a strength of 7.17 MPa at 28 days. The results suggest enhanced compactness and reduced water uptake at 60% CS replacement. All brick specimens exceeded the JKR minimum compressive strength requirement of 5.2 MPa, with the optimum mechanical and durability performance found at 60% CS replacement. Including these performance metrics provides practical clarity for material selection and highlights the engineering viability of cockle shells in sustainable construction. This study confirms the potential of cockle shell waste as an eco-friendly, high-volume sand replacement, supporting both environmental preservation and circular economy practices.
Hybrid bio-filler effects on the performance of pearl shell and mahogany fruit shell-modified structural epoxy adhesives Sugiman Sugiman, Zikrillah Ananda Putra, Ivan Januardi, Paryanto Dwi Setyawan, Agus Dwi Catur, Hilton Ahmad, Yuli Panca Asmara Journal of Adhesion, 2026 This study investigates the performance of bio-derived fillers from pear shell (PS), mahogany fruit shell (MFS), and their hybrid as reinforcements in epoxy adhesive systems. Adhesives were fabricated with filler loadings of 0 - 30 wt%, and their tensile strength and mode-I fracture toughness were evaluated. The performance of adhesives as structural adhesives was assessed using aluminium single-lap joints. Fracture surface morphologies were examined via scanning electron microscopy. Results revealed that for single-filler systems, both tensile and fracture properties peaked at 15 wt%, beyond which agglomeration and property degradation occurred. In contrast, the hybrid filler system exhibited optimal mechanical performance at 20 wt%. Similarly, the mode-I fracture toughness of filled epoxy adhesives was significantly improved with increasing filler loading to 15–25 wt%, with an enhancement of up to 95%. Notably, the highest shear strength in bonded joints was also achieved at 20 wt% filler content. Microscopic analysis indicated that crack deflection and bifurcation were the dominant toughening mechanisms. Additionally, particle cleavage and pull-out were observed in PS- and MFS-filled epoxies, respectively. Overall, the findings demonstrate that PS and MFS fillers, individually and in combination, offer a sustainable and effective route to enhance the mechanical performance of epoxy adhesives.
Structural Interaction Between Woven Kenaf FRP Plates and Notched Concrete Beams Under Flexural Loading Zaim Omar, Hilton Ahmad, Sugiman Sugiman, Hazrina Mansor, Suleyman Khalif Mohamed, Ku Muhammad Firdaus Ku Meh Journal of Infrastructure Preservation and Resilience, 2025 Concrete is widely recognised for its durability and high compressive strength, making it one of the most utilised construction materials globally. However, structural elements such as beams are often subjected to defects, including notches and cracks, which reduce their load-carrying capacity and necessitate effective strengthening solutions. Fibre Reinforced Polymer (FRP) systems have been extensively applied to enhance structural performance. Kenaf FRP (KFRP) is a promising natural alternative due to its high tensile strength and sustainability. This study examines the flexural performance of notched concrete beams reinforced with woven KFRP plates, aiming to enhance load-carrying capacity through experimental testing and validation via three-dimensional finite element analysis. The research involves three standardised notched-depth beam designs, with 18 specimens tested under four-point bending. Failure modes and ultimate load capacities were analysed, revealing dominant mechanisms such as flexural cracking and KFRP rupture. The results indicate that KFRP strengthening increased the ultimate load capacity by up to 200% compared to unstrengthened beams. Additionally, the Extended Finite Element Method (XFEM) with traction-separation laws was employed to predict flexural strength, demonstrating a strong correlation with experimental results, with mean variances below 6%. The numerical approach is a reliable predictive tool for estimating the flexural strength of notched beams reinforced with natural FRPs. Experimental and numerical findings confirm that KFRP plates significantly improve the flexural strength of notched concrete beams, highlighting their potential as an effective and sustainable retrofitting solution for deteriorated concrete structures.
Experimental investigations of strengthened beam with co-cured carbon FRP and mussel shell-modified epoxy Syahrin Azhar, Sugiman Sugiman, Zaim Omar, Hilton Ahmad Ain Shams Engineering Journal, 2025 Traditional strengthening materials, such as carbon fibre reinforced polymer (CFRP) plates bonded with synthetic fillers, often rely on non-renewable resources and may have limited environmental compatibility. Thus, mussel shells with a high content of calcium carbonate particles act as rigid particles and alternatives to synthetic filler counterparts added in epoxy resin, enhancing the mechanical properties of filled epoxy. This paper aims to investigate the improvement of flexural resistance by incorporating mussel shell powder as a bio-filler of epoxy resin (hereafter referred to as mussel shell-modified epoxy, MME), which was then used as the bonding agents with CFRP sheets via co-cured technique as a beam strengthening method. A four-point bending test was conducted to investigate four parametric studies, i.e., CFRP bonded lengths (Series A), mussel shell powder volume fraction (Series B) and different percentages of pre-load applied on concrete beams with different bonding agent types, i.e., MME (Series C) and neat epoxy resin (Series D). A 7.5% volume fraction of MME and the most extended CFRP sheet enhanced the ultimate load with deflection (associated with concrete ductility) of the strengthened plain beams by 108% and 58%, respectively, compared to the control beam. Interestingly, up to 66% improvement was observed in Series C by applying pre-load at 60% of the control beam’s ultimate load, comparing beams strengthened with MME to those using neat epoxy (Series D). In this test, pre-loading was applied by subjecting the concrete beams to 60% of their ultimate capacity using a Universal Testing Machine (UTM) before applying CFRP sheets, ensuring consistent initial stress conditions for reliable comparison. Hence, MME is a viable bio-filler incorporated in epoxy resin to enhance co-cured CFRP as a strengthening material.
A Sustainable Practices of Utilizing Ceramic Tile Waste to Replace Coarse Aggregate in Normal Concrete , X. Y. Lim, N. Y. Zainun, , H. Ahmad, , H. Mansor, and International Journal of Integrated Engineering, 2025 Due to poor construction waste manegement and disposal problem, construction waste is an emerging issue in the Malaysian Construction Industry (MCI).Massive construction projects affect the environment and produce huge amount of construction waste, including ceramic tile waste.The research aim is to figure out the mechanical characteristics of normal concrete under compressive strength and four-point bending tests with different percentages of ceramic tile waste replacement.Ceramic tile waste is recycled to replace coarse aggregate in developing a designed strength of 30 N/mm 2 at 28 days.10% of the cement is substituted with fly ash.Maximum particle for fine and coarse aggregates are 5 mm and 10 mm in sizes.A uniform ratio of 0.545 water-to-cement (w/c) and a concrete mix ratio of 1:2.61:2.71(Cement: Fine aggregate: Coarse aggregate) are applied in the Department of Environment (DOE) technique.Thirty-six-cylinder specimens (150 mm X 300 mm) and eighteen prism specimens (400 mm x 100 mm x 100 mm) are casted, cured and tested to examine their properties.20% crushed gravel is replaced with ceramic tile waste to obtain higher compressive and flexural strengths, measured 39.21 N/mm 2 and 3.51 N/mm 2 respectively.By turning waste into wealth, this research can reduce the dependency on natural raw materials, recycling recyclable resources, reduce the disposal of ceramic tile waste and minimize negative impacts on the environment.
The mechanical properties of concrete waste slurry containing steel fiber and rubber powder Nelly Majain, Jackson Meringgai Radin, Mohd Hilton Ahmad, S. M. Iqbal S. Zainal, Muhd Fauzy Sulaiman Cutting Edge Advances in Nanofibers and Fibers Shaping Future Applications, 2025 This study explores the use of concrete waste slurry (CWS), a by-product of precast manufacturing, as a sustainable material for concrete production. CWS was modified with 1% steel fiber and rubber powder derived from recycled tires at 10% and 20% replacement levels. The hooked-end steel fibers (35 mm length, aspect ratio 64) and rubber powder aimed to improve the compressive and tensile strength of the concrete. Fresh properties testing revealed high flowability in the mixtures, with no segregation or bleeding, ensuring uniform distribution of fibers. Mechanical properties testing included compressive and splitting tensile strength evaluations on 42 specimens in cubic and cylindrical forms. The mixture with 1% steel fiber and 10% rubber powder achieved the highest compressive strength (15.87 MPa), improved density, and fewer visible cracks; demonstrating superior performance. However, increasing rubber powder to 20% reduced strength due to higher porosity. The optimized mixture provides sustainable construction materials with potential for broader applications in construction.
Experimental and numerical investigation of adhesively bonded kfrp/steel double strap joints incorporating eggshell powder-toughened epoxy adhesive Chia Lia Yip, Sugiman Sugiman, Desmond Chin, Hilton Ahmad Case Studies in Construction Materials, 2024 Due to the environmental concerns, the application of natural FRPs to replace synthetic fibre as a strengthening material has increased. Kenaf fibre-reinforced polymer (KFRP) has comparable specific strength with glass fibre-reinforced polymer (GFRP). Moreover, epoxy resin is widely used as a matrix of composites and adhesives; however, it has low shear strength. Improvement of epoxy properties is therefore required, for example, by incorporating biofiller such as eggshells from household waste, which contain calcite, to improve its shear strength. Testing series includes variations of KFRP bond length, KFRP thickness and eggshell filler volume fractions. All the DSJ specimens underwent a two-stage testing process, experimentally and numerically. In Stage 1, experimental work was performed on the specimens through quasi-static tensile tests, following the ASTM D3528–96. In Stage 2, numerical studies were conducted to predict the strength using the extended finite element method (XFEM) within ABAQUS CAE. Subsequently, the strength prediction from developed 2-D FEA models was validated by the experimental datasets. All testing specimens exhibited KFRP rupture mode. For all the studied overlap lengths, the joint strength increased with the increase of the studied composite's adherend thickness (1 - 4 mm); however, the overlap length reached the optimum at the overlap length of 80 mm, where beyond that overlap length, the joint strength tended to decrease. The maximum joint strength is achieved with a combination of 80 mm bond length and 4 mm KFRP thickness, resulting in a 226.5% enhancement compared to the baseline (composite thickness of 1 mm, with adhesive without filler). Moreover, it was found that volume fraction of 5% eggshell was the optimum. The strength prediction was performed using an extended finite element method (XFEM), In general, there were good agreements in both experimental datasets and XFEM models, with discrepancies of less than 16.1% (averaging less than 8%). The FEA modelling approaches are promising for predicting the joint strength of KFRP/steel DSJ.
Proposed Framework for the Flood Disaster Management Cycle in Malaysia Syed Ahmad Hakim Bin Syed Muzamil, Noor Yasmin Zainun, Nadiatul Nazleen Ajman, Noralfishah Sulaiman, Shabir Hussain Khahro, Munzilah Md. Rohani, Saifullizan Mohd Bukari Mohd, Hilton Ahmad Sustainability Switzerland, 2022
3-D modelling of GFRP woven fabric double-lap bolted joint 8th Asian Australasian Conference on Composite Materials 2012 Accm 2012 Composites Enabling Tomorrow S Industry Today, 2012
Failure modelling of woven GFRP bolted joints under quasi-static loading Iccm International Conferences on Composite Materials, 2011
RECENT SCHOLAR PUBLICATIONS
Numerical Modelling of concrete beams strengthened with co-cured CFRP plates with a mussel shell modified epoxy (MME): An XFEM-CZM traction–separation framework with … S Azhar, S Sugiman, Z Omar, H Ahmad Multiscale and Multidisciplinary Modeling, Experiments and Design 9 (1), 103 , 2026 2026
EFFECT OF OVERLAP LENGTH AND ADHESIVE THICKNESS ON THE SHEAR STRENGTH OF JUTE FIBRE COMPOSITE AND FIBREGLASS COMPOSITE JOINTS AN Setyawan, AD Catur, H Ahmad Energy, Materials and Product Design 5 (1), 316-322 , 2026 2026
Hybrid bio-filler effects on the performance of pearl shell and mahogany fruit shell-modified structural epoxy adhesives S Sugiman, Z Ananda Putra, I Januardi, P Dwi Setyawan, A Dwi Catur, ... The Journal of Adhesion, 1-25 , 2026 2026
Effect of the addition of backing support plates on the shear strength of aluminium and steel adhesively bonded joints AI Putra, S Sugiman, AD Catur, H Ahmad Dinamika Teknik Mesin 15 (2), 85-92 , 2025 2025
Experimental investigations of strengthened beam with co-cured carbon FRP and mussel shell-modified epoxy S Azhar, S Sugiman, Z Omar, H Ahmad Ain Shams Engineering Journal 16 (10), 103563 , 2025 2025 Citations: 6
A Sustainable Practices of Utilizing Ceramic Tile Waste to Replace Coarse Aggregate in Normal Concrete XY Lim, NY Zainun, MH Ahmad, H Mansor International Journal of Integrated Engineering 17 (5), 274-289 , 2025 2025 Citations: 1
Structural Interaction Between Woven Kenaf FRP Plates and Notched Concrete Beams Under Flexural Loading Z Omar, H Ahmad, S Sugiman, H Mansor, SK Mohamed, KMFK Meh Journal of Infrastructure Preservation and Resilience 6 (1), 25 , 2025 2025 Citations: 3
Flexural behaviour of lightweight foamed concrete partially encased steel beam C Ng, N Abd Rahman, H Ahmad, R Ahmadi World Journal of Engineering , 2025 2025 Citations: 2
The Mechanical Properties of Concrete Waste Slurry Containing Steel Fiber and Rubber Powder MH Ahmad IGI Global Scientific Publishing , 2025 2025
Utilization of high volume of cockle shell as sand replacement in bricks: Effects on density, compressive strength, water absorption and initial rate absorption N Lile, S Sugiman, N Majain, H Ahmad, LS Yee 2025
The mechanical properties of concrete waste slurry containing steel fiber and rubber powder N Majain, JM Radin, MH Ahmad, SMIS Zainal, MF Sulaiman Cutting-Edge Advances in Nanofibers and Fibers: Shaping Future Applications … , 2025 2025 Citations: 1
Static Shear Strength of Double-Strap and Single-Lap Joints incorporating Toughened Mussel Epoxy MNS Azhar, S Velayutham, S Sugiman, DD Chin, SY Lee, RH Goh, ... International Journal of Sustainable Construction Engineering and Technology … , 2024 2024 Citations: 1
Experimental and numerical investigation of adhesively bonded kfrp/steel double strap joints incorporating eggshell powder-toughened epoxy adhesive CL Yip, S Sugiman, D Chin, H Ahmad Case Studies in Construction Materials 20, e02790 , 2024 2024 Citations: 13
Fracture energy and mechanical properties of toughened epoxy resin with eggshell powder C Fong, S Sugiman, D Chin, H Ahmad Journal of Adhesion Science and Technology 38 (12), 2065-2084 , 2024 2024 Citations: 12
The development of Semi-Auto flood door barrier K Supar, SMNS Ismail, MA Azmi, AI Jafri, MAM Azmi, H Ahmad Multidisciplinary Applied Research and Innovation 5 (2), 24-30 , 2024 2024 Citations: 2
The Development of IBS Structure Panel Using Revit Software K Supar, NAI Hisyamudin, MNAMA Abdullah, AMA Abdullah, NFSM Noor, ... Multidisciplinary Applied Research and Innovation 5 (2), 1-8 , 2024 2024
Shear Strength of Adhesively bonded Joints with Toughened Mussel Shell Powder S Velayutham, S Sugiman, MH Ahmad, ZM Jaini International Journal of Integrated Engineering 16 (1), 201-212 , 2024 2024 Citations: 3
STATIC SHEAR STRENGTH OF DOUBLE-STRAP AND SINGLE-LAP JOINTS INCORPORATING TOUGHENED MUSSEL SHELL POWDER WITH EPOXY S AZHAR, S VELAYUTHAM, S SUGIMAN, CD DANIEL, H AHMAD INTERNATIONAL JOURNAL 15 (3) , 2024 2024
Shear Strength of Adhesively Bonded Joint with Toughened Epoxy Mussel Powder S Velayutham, S Sugiman, H Ahmad, Z Mohd Jaini International Journal of Integrated Engineering 16 (2), 1-12 , 2024 2024 Citations: 1
Experimental and numerical investigation of adhesively bonded kfrp/steel double strap joints incorporating eggshell powder-toughened epoxy adhesive CLY Chia Lia Yip, SS Sugiman Sugiman, DC Desmond Chin, H Ahmad Case Studies in Construction Materials 20, 1-7 , 2024 2024
MOST CITED SCHOLAR PUBLICATIONS
Compressive strength of palm oil fuel ash concrete MH Ahmad, RC Omar, MA Malek, NM Noor, S Thiruselvam Proceedings of International Conference on Construction and Building … , 2008 2008 Citations: 84
Proposed framework for the flood disaster management cycle in Malaysia SAHBS Muzamil, NY Zainun, NN Ajman, N Sulaiman, SH Khahro, ... Sustainability 14 (7), 4088 , 2022 2022 Citations: 78
Strength prediction in CFRP woven laminate bolted double-lap joints under quasi-static loading using XFEM H Ahmad, AD Crocombe, PA Smith Composites Part A: Applied Science and Manufacturing 56, 192-202 , 2014 2014 Citations: 57
Mechanical properties of palm oil clinker concrete MH Ahmad, S Mohd, NM Noor Engineering Conference, 172 , 2007 2007 Citations: 39
Comparison of cohesive zone and continuum damage approach in predicting the static failure of adhesively bonded single lap joints S Sugiman, H Ahmad Journal of Adhesion Science and Technology 31 (5), 552-570 , 2017 2017 Citations: 36
Strength prediction in CFRP woven laminate bolted single-lap joints under quasi-static loading using XFEM H Ahmad, AD Crocombe, PA Smith Composites Part A: Applied Science and Manufacturing 66, 82-93 , 2014 2014 Citations: 33
Physical properties of local palm oil clinker and fly ash MH Ahmad, NM Noor Engineering Conference, 162 , 2007 2007 Citations: 32
Shear strengthening of reinforced concrete beams using carbon fiber reinforced polymer laminate: a review MBS Alferjani, A Samad, BS Elrawaff, NB Mohamad, MHB Ahmad American Journal of Civil Engineering 2 (1), 1-7 , 2014 2014 Citations: 26
Use of carbon fiber reinforced polymer laminate for strengthening reinforced concrete beams in shear: a review MBS Alferjani, AA Samad, BS Elrawaff, N Mohamad, M Hilton, AAS Saiah International Refereed Journal of Engineering and Science (IRJES) 2 (2), 45-53 , 2013 2013 Citations: 20
XFEM modelling of single-lap Kenaf fibre composite hybrid joints under quasi-static loading LS Yee, H Ahmad Plastics, Rubber and Composites 48 (2), 48-56 , 2019 2019 Citations: 19
Experimental and numerical investigation of the residual strength of steel-composites bonded joints: effect of media and aging condition S Sugiman, PD Setyawan, S Salman, H Ahmad Composites Part B: Engineering 173, 106977 , 2019 2019 Citations: 18
Stress distribution study on multi-holes configurations in woven fabric kenaf composite plates K Supar, H Ahmad IOP Conference Series: Materials Science and Engineering 271 (1), 012005 , 2017 2017 Citations: 18
Physically based finite element strength prediction in notched woven laminates under quasi-static loading H Ahmad, AD Crocombe, PA Smith Plastics, Rubber and Composites 42 (3), 93-100 , 2013 2013 Citations: 17
Shrinkage of Malaysian palm oil clinker concrete MH Ahmad, NM Noor, SH Adnan ICCE08. Pahang, Malaysia , 2008 2008 Citations: 16
The effects of woven fabric Kenaf FRP plates flexural strengthened on plain concrete beam under a four-point bending test Z Omar, S Sugiman, MM Yussof, H Ahmad Case Studies in Construction Materials 17, e01503 , 2022 2022 Citations: 15
Predicting the flexural behaviour of CFRP-strengthened concrete beam using combined XFEM and cohesive zone model Z Omar, S Sugiman, MM Yusoff, H Ahmad Journal of Applied Science and Engineering 25 (6), 1077-1090 , 2022 2022 Citations: 15
Mix design of palm oil fiber concrete MH Ahmad, MN Nurazuwa Proceedings of the International Conference on Civil Engineering , 2008 2008 Citations: 15
Environmental Impact Assessment (EIA) using geographical information system (GIS): An integrated land suitability analysis of filling stations NN Ajman, NY Zainun, N Sulaiman, SH Khahro, FEM Ghazali, MH Ahmad Sustainability 13 (17), 9859 , 2021 2021 Citations: 14
Numerical modelling of foamed concrete beam under flexural using traction-separation relationship H Ahmad, S Sugiman, ZM Jaini, AZ Omar Latin American Journal of Solids and Structures 18, e382 , 2021 2021 Citations: 14
XFEM modelling of multi-holes plate with single-row and staggered holes configurations K Supar, H Ahmad MATEC Web of Conferences 103, 02031 , 2017 2017 Citations: 14
