Blar i NTNU Open på forfatter "Asadi, Iman"
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Analysis of Concrete Air Voids: Comparing OpenAI-Generated Python Code with MATLAB Scripts and Enhancing 2D Image Processing Using 3D CT Scan Data
Asadi, Iman; Shpak, Andrei; Jacobsen, Stefan (Journal article; Peer reviewed, 2024)The air void system in concrete significantly affects its mechanical, thermal, and frost durability properties. This study explored the use of ChatGPT, an AI tool, to generate Python code for analyzing air void parameters ... -
Drying shrinkage properties of expanded polystyrene (EPS) lightweight aggregate concrete: A review
Maghfouri, Mehdi; Alimohammadi, Vahid; Gupta, Rishi; Saberian, Mohammad; Azarsa, Pejman; Hashemi, Mohammad; Asadi, Iman; Roychand, Rajeev (Peer reviewed; Journal article, 2022)Expanded polystyrene (EPS) is currently being utilized in sustainable materials owing to its ultra-low density and superior thermal performance. It can be incorporated in concrete mixtures to replace coarse aggregate to ... -
Evaluating the effective thermal conductivity of cement mortar through x-ray scanning
Asadi, Iman; Ji, Guomin; Haj Mohammadian Baghban, Mohammad (Peer reviewed; Journal article, 2022)The effective thermal conductivity of cement mortar as a porous material depends on its solid phase and void phase conductivity. Therefore, a sample's pore distribution can highly impact the value of effective thermal ... -
Evaluating the time lag and decrement factor of mortar and concrete containing OPBC as an agricultural by-product lightweight aggregate
Asadi, Iman; Hashemi, Mohammad; Sajadi, Behrang; Mahyuddin, Norhayati Binti; Haj Mohammadian Baghban, Mohammad; Esfandiari, Masoud; Maghfouri, Mehdi; Yan, Kezhen (Peer reviewed; Journal article, 2023)Replace the normal weight aggregate with wastes or by-products materials is an appropriate method for producing a sustainable cement-based material. The replacement helps to have an energy-efficient component that reduces ... -
A field study on thermal comfort and cooling load demand optimization in a tropical climate
Esfandiari, Masoud; Zaid, Suzaini Mohamed; Ismail, Muhammad Azzam; Hafezi, Mohammad Reza; Asadi, Iman; Mohammadi, Saleh (Peer reviewed; Journal article, 2021)Energy consumption to cool an indoor environment is a substantial part of total energy end-use, particularly in a tropical climate with high energy demand for cooling. To improve energy efficiency, cooling systems can be ... -
FROST TESTING NON-AIR ENTRAINED SUPPLEMENTARY CEMENTITIOUS MATERIALS HIGH PERFORMANCE CONCRETE: SALT-SCALING AND INTERNAL DAMAGE
Jacobsen, Stefan; Asadi, Iman; Skjølsvold, Ola; Kanstad, Terje (Chapter, 2023)Air-entrainment is difficult with high volumes of Supplementary Cementitious Materials (SCM). High Performance Concrete (HPC) with low w/b without air-entrainment can, however, survive severe deicer salt frost performance ... -
Frost-salt Testing Non-air Entrained High-performance Fly-ash Concrete Part II: Parameter Study of Effect of Internal Cracking on Glue Spall Stress
Asadi, Iman; Skjølsvold, Ola; Kanstad, Terje; Jacobsen, Stefan (Journal article; Peer reviewed, 2024)A parametric analysis of glue spall stress (concrete surface tensile stress at ice-discontinuities by differential thermal expansion ice-concrete) as affected by internal cracking in concrete in the CEN/TS 12390-9 salt-frost ... -
Frost-salt Testing Non-air Entrained High-Performance Fly-ash Concrete. Part I: Relations Liquid uptake - Internal Cracking – Scaling
Asadi, Iman; Skjølsvold, Ola; Kanstad, Terje; Jacobsen, Stefan (Peer reviewed; Journal article, 2024)The surface scaling of low CO2-emission High Performance Concretes (HPC) was studied in freeze/thaw performance tests with a 3 mm layer of 3% NaCl on the surface to investigate whether such concretes can be made frost ... -
Impact of microencapsulated phase change materials (PCMs) on the thermal and mechanical performance of cement mortar
Asadi, Iman; Guomin, Ji; steinar, Gerald; Haj Mohammadian Baghban, Mohammad (Journal article; Peer reviewed, 2025)This study investigates the integration of Microencapsulated Phase Change Materials (MPCM) into cement mortar to enhance its thermal performance while assessing its mechanical and physical properties. MPCMs, known for their ... -
Macroporosity and water penetration measurements of sprayed concrete: Open vs closed macroporosity, size, shape, orientation and anisotropy
Hårr, Magne Stangeland; Kjeka, Gaute (Master thesis, 2022)Hensikten med oppgaven var å undersøke makroporøsitet og permeabilitet til sprøytebetong. Dette innebar å (1) undersøke åpen og lukket makroporøsitet målt med PF-metoden, (2) sammenligne luftinnhold i ulike betongtyper ... -
Macroporosity and water penetration measurements of sprayed concrete: Open vs closed macroporosity, size, shape, orientation and anisotropy
Hårr, Magne Stangeland; Kjeka, Gaute (Master thesis, 2022)Hensikten med oppgaven var å undersøke makroporøsitet og permeabilitet til sprøytebetong. Dette innebar å (1) undersøke åpen og lukket makroporøsitet målt med PF-metoden, (2) sammenligne luftinnhold i ulike betongtyper ... -
Phase change materials incorporated into geopolymer concrete for enhancing energy efficiency and sustainability of buildings: A review
Asadi, Iman; Hajmohammadian Baghban, Mohammad; Hashemi, Mohammad; Izadyar, Nima; Sajadi, Behrang (Journal article; Peer reviewed, 2022) -
Reviewing the Potential of Phase Change Materials in Concrete Pavements for Anti-Freezing Capabilities and Urban Heat Island Mitigation
Asadi, Iman; Jacobsen, Stefan; Baghban, Mohammad Hajmohammadian; Magfouri, Mehdi; Hashemi, Mohammad (Peer reviewed; Journal article, 2023)This study provides an overview of how phase change materials (PCMs) can improve the resistance of concrete pavement to freeze–thaw cycles and mitigate the urban heat island (UHI) effect. The investigation covers different ...