Non-destructive testing of carbon fiber reinforced magnetic reactive powder concrete containing Nano silica

• Published in: Journal of Engineering Vol. 22; no. 10; pp. 16 - 37
• Main Authors: Rauf, Zayn al-Abidin, al-Suhaili, Rafi Hashim Shakir, Mahdi, Zaynab Hashim
• Format: Journal Article
• Language: English
• Published: Baghdad, Iraq University of Baghdad, College of Engineering 01.10.2016; University of Baghdad
• Subjects: nano silica, magnetic water, reactive powder, carbon fiber, non-destructive; ألياف الكربون; اختبار المواد; الخرسانة المسلحة; الخواص المغناطيسية; السليكا; المساحيق; المواد النانوية; مواد البناء
• ISSN: 1726-4073; 2520-3339
• DOI: 10.31026/j.eng.2016.10.02

This study involves the design of 24 mixtures of fiber reinforced magnetic reactive powder concrete containing nano Silica. Tap water has been used in mixing 12 of these mixtures, while the other 12 have been mixed using magnetic water. Nano Silica (NS) with ratios (1, 1.5, 2, 2.5 and 3) % were used. The results showed that the mixture containing 2.5%NS gives the highest compressive strength at age 7 days. Many different other tests were carried out, the results showed that the fiber reinforced magnetic reactive powder concrete containing 2.5% NS (FRMRPCCNS) has the higher bulk density, dynamic modulus of elasticity, ultrasonic pulse velocity electrical resistivity and lesser absorption than fiber reinforced nonmagnetic reactive powder concrete containing 2.5%NS(FRNRPCCNS). The percentages of increase for FRMRPCCNS are (1.6, 19.03, 7.89 and 19.28) % and the percentage of reduction is 55.7 % at 28 days respectively, as compared with FRNRPCCNS mixtures.