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ABSTRACT
The effect of magnetic water (MW) on mechanical properties (MP) of lightweight concretes (LWC’s) made with expanded polystyrene was investigated. Eight different types of water were used. The water used were drinking water and raw water of the Karun River that each was magnetised at 0.5, 1 and 2 Tesla fields. Slump, water absorption, static elasticity modulus (Ec) and compressive, tensile, and flexural strength tests were performed. The results showed that the use of drinking water compared to river raw water provides higher MP. Using drinking water compared to the raw river water increased the efficiency of concrete by 3% and the compressive, tensile, flexural strength and Ec by 10%, 3%, 3%, and 2%, respectively. Using MW up to the 1 Tesla field intensity has a positive effect on concrete MP. Due to the use of MW with 1 Tesla intensity, compressive, tensile, and flexural strength and Ec increased by 24.4%, 6.1%, 3.9% and 0.5% in concretes made with drinking water and 12.4%, 3.6%, 3.4% and 2% in river raw water concretes. However, the MP of LWC’s containing MW with intensity of more than 1 Tesla were almost similar to the case in which MW with 1 Tesla was used.
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Additional information
Notes on contributors
Hamid Reza Holakoei
Hamid Reza Holakoei is a PhD student of civil engineering at the department of Civil Engineering, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran. He received his BS from Islamic Azad University of Ahvaz; and MS from Islamic Azad University of Tehran. His research interest includes effect of additive materials on the behavior and properties of concrete.
Fathollah Sajedi
Dr. Fathollah Sajedi has a specialized doctorate in structural and material engineering. He received his PhD in 2011 from the University of Malaya in Kuala Lumpur, Malaysia. Now he is a full professor in the field of structures in the department of civil engineering at Islamic Azad University. He has more than 10 volumes of specialized books in the field of civil engineering in Persian and English languages. He has more than 100 scientific-research papers published in national and international journals. Now he is a reviewer of articles in more than 10 national and international journals. He is the Editor-in chief of a scientific-research journal. So far, he has supervised more than 100 theses and dissertations in the master's and PhD degrees.