Modified Magnetized Water Concrete Using Nanosilica

It is expected that in the near future, the civil engineering community will have to produce structures in harmony with the concept of sustainable development through the use of high-performance materials with low environmental impact that are produced at a reasonable cost. Magnetic water concrete provides one route towards this objective. When water passes through a magnetic flux it is known as magnetized water. The magnetic effects changes the physical & chemical parameters of natural water, resulting in improvement of filtration properties and increase dissolving properties of water Su et al.(Cem Concr Res 30, 2000 [1]). One of the basic characteristics of magnetically treated water, which has major importance in concrete making, is its pertaining to colloidal particles allowing a more complete hydration process to occur and enhancing the mechanical strength of concrete. The magnet used to make the water magnetic is permag-N406 Bharath et al. (JCPS 9(4) 2016, [2]). The changes in properties of magnetized water such as pH value, hardness and evaporation rate were studied. The optimal value of magnetization is also carried to find out the maximum exposure time of water with the magnetic field. Study on compressive strength, split tensile strength, workability and plastic shrinkage of concrete were carried. Cement is also partial replaced with Nano silica by 5, 10, 15 and 20% for obtaining good characteristic strength.