Blar i ODA Open Digital Archive på forfatter "Haji, Mohammad"
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Combined Use of Sewage Sludge Ash and Silica Fume in Concrete
Azarhomayun, Fazel; Haji, Mohammad; Kioumarsi, Mahdi; Kheyroddin, Ali (Peer reviewed; Journal article, 2023)The lack of adequate space for sewage sludge disposal has become a significant challenge in many countries. Land- filling and using sewage sludge as fertilizer in agricultural lands are the main methods for disposal. ... -
Effect of calcium stearate and aluminum powder on free and restrained drying shrinkage, crack characteristic and mechanical properties of concrete
Azarhomayun, Fazel; Haji, Mohammad; Kioumarsi, Mahdi; Shekarchi, Mohammad (Cement and Concrete Composites;Volume 125, January 2022, 104276, Peer reviewed; Journal article, 2021-10-05)Shrinkage is the volume change of concrete without influence of external forces. Drying shrinkage, which occurs after the concrete hardening, is one of the most important causes of the cracking in concrete members. In ... -
Effect of Shrinkage Reducing Admixture on Drying Shrinkage of Concrete with Different w/c Ratios
Kioumarsi, Mahdi; Azarhomayun, Fazel; Haji, Mohammad; Shekarchi, Mohammad (Materials;Volume 13, Issue 24, Journal article; Peer reviewed, 2020-12-15)The reduction of the moisture content of concrete during the drying process reduces the concrete’s volume and causes it to shrink. In general, concrete shrinkage is a phenomenon that causes concrete volume to dwindle and ... -
Investigating the Effectiveness of the Stable Measurement Tests of Self-Compacting Concrete
Azarhomayun, Fazel; Haji, Mohammad; Shekarchi, Mohammad; Kioumarsi, Mahdi (Peer reviewed; Journal article, 2023)Self-compacting concrete (SCC) is a highly flowable concrete that can fill complex formwork without the need for vibration. However, its high consistency can lead to various forms of instability, such as separation, bleeding, ...