Yousry Omar M M, Abdallah Metwally A, Ghazy Mariam F, Taman Mohamed H, Kaloop Mosbeh R
Structural Engineering Department, Tanta University, Tanta 31733, Egypt.
Civil and Environmental Engineering Department, Incheon National University, Incheon 22012, Korea.
Materials (Basel). 2020 Apr 23;13(8):1971. doi: 10.3390/ma13081971.
This research investigates the means to improve the compressive strength of mortar mixtures through using novel mixtures. These mixtures include magnetic water (MW) and fly ash (FA). MW was obtained by circulating tap water (TW) through a magnetic field. The magnetization duration was represented by the number of cycles, the content of FA was replaced with cement, and the super plasticizer percentage (SP) and the curing age were used and evaluated experimentally for producing the mortar mixtures. Mortar flow, crushing compressive strength, and ultrasonic pulse velocity (UPV) tests were applied to evaluate the performances of mixing characteristics. The results demonstrate that the MW-treated mortar mixtures show higher compression strength results than those prepared by TW. The compressive strength was increased up to 60% with 150 cycles, a dose of 0.5% of SP and no FA content at the age of 56 days. The dose of SP can be cut down by a maximum of 40% to 50% in cementitious mortar. the workability was enhanced by a percentage of 70%.
本研究探讨了通过使用新型混合物来提高砂浆混合物抗压强度的方法。这些混合物包括磁化水（MW）和粉煤灰（FA）。磁化水是通过使自来水（TW）在磁场中循环获得的。磁化持续时间用循环次数表示，粉煤灰的含量用水泥替代，并且使用并通过实验评估了高效减水剂百分比（SP）和养护龄期来制备砂浆混合物。应用砂浆流动度、抗压强度和超声脉冲速度（UPV）测试来评估混合特性的性能。结果表明，经磁化水处理的砂浆混合物比用自来水制备的砂浆混合物具有更高的抗压强度结果。在56天龄期时，经过150次循环、0.5%剂量的高效减水剂且无粉煤灰含量的情况下，抗压强度提高了60%。在水泥砂浆中，高效减水剂的剂量最多可减少40%至50%。工作性提高了70%。
