Abstract

Civil engineering network is virtually orient to develop high-performance materials with eco-friendly construction to welfare of the society. Undoubtedly, water plays an important role in the performance of concrete to provide workability, strength, and other durability properties. Magnetic water being salt free and its properties are turning out to be as good as potable water. When water is passing through a magnetic field, water molecules get rearranged inside the structure, which allows the water to seep through more effectively than normal water in cementitious particles, thereby enabling the hydration process to operationalize faster and effective. Based on the preliminary studies, it has observed that workability of M40 grade concrete mixed with magnetic water is improved significantly without compromising its strength and also it has been observed that the strength achievement is faster than the conventional concrete with the considerable reduction of cement content. This research paper intends to investigate the efficient utilization of magnetic water in M40 grade concrete and to study the enhancement of its properties on hardened concrete and structural behavior of prestressed concrete (PSC) beams such as load carrying capacity, ductility factor, and energy absorption capacity. These properties are comparatively studied for pre-tensioned reinforced concrete (RC) beam subjected to central concentrated load for concrete mixing to use the normal water and magnetic water. Utilization of magnetic water on pre-tensioned concrete beams is improving the flexural strength by 25%. The characterization study on concrete with magnetic water such as X-ray diffraction (XRD) and Fourier-transform infrared (FT-IR) spectroscopy substantiates hydrated products of cements at early ages. Further the scanning electron microscopic (SEM) studies demonstrate the high degree of hydration of cement with separation of calcium hydroxide (CH) crystal using magnetic water.

摘要

土木工程网络实际上是面向开发具有环保建筑的高性能材料以造福社会。毫无疑问，水在混凝土的性能中起着重要作用，可提供和易性、强度和其他耐久性能。磁性水不含盐，其特性与饮用水一样好。当水通过磁场时，水分子在结构内部重新排列，这使得水比普通水更有效地渗入水泥颗粒中，从而使水化过程更快、更有效地进行。根据初步研究，据观察，在不影响其强度的情况下，与磁水混合的 M40 级混凝土的和易性得到显着改善，并且观察到强度实现速度快于传统混凝土，水泥含量显着降低。本研究旨在研究磁水在 M40 级混凝土中的有效利用，并研究其对硬化混凝土性能的增强以及预应力混凝土 (PSC) 梁的承载能力、延性系数和能量吸收能力等结构行为。 . 对承受中心集中荷载的预张法钢筋混凝土（RC）梁的这些性能进行了比较研究，以进行混凝土搅拌，使用普通水和磁水。在预张拉混凝土梁上使用磁水可将抗弯强度提高 25%。X射线衍射（XRD）和傅里叶变换红外（FT-IR）光谱等磁水对混凝土的表征研究证实了早期水泥的水合产物。此外，扫描电子显微镜 (SEM) 研究表明，使用磁性水分离氢氧化钙 (CH) 晶体时水泥的高度水合。