Management and Optimization of Concrete Production Using Nanostructured Materials

Abstract

Nanotechnology is one of most active research field which has several fields in civil engineering and construction materials. However, the trends are more active in electronics, biomechanics, etc. Interest about study of nanotechnology and compound Portland cement increase so that, most research which has done these days, are about how hydration of cement in and concrete occur or the use of nano particles such as alumina and carbon nano tube and etc. Over the course of time into the 21th century, concrete has been known as one of the highest usage materials in the construction industry. As a consequence, trying to produce light concrete is an active and developing area within the new field of construction science. In spite of considerable amount of compressive strength, low tensile strength and relatively high fragility of the concrete, are limitations in using it in some parts of structures which are partially or fully faced with tensile forces. This fundamental defect of concrete in practice can be eliminated by reinforcing it using steel bars in the direction of traction forces. Having in mind that the steel bar just constitutes a small part of the whole cross section of the structure, it will not be correct to conceive of the cross section of concrete as an isotropic and homogeneous surface. In recent decades, in order to come up with the isotropic condition and decrease the fragility, weakness and retrogression of concrete, new techniques and trends of applying slender fibers running through the internal section of the bulk of concrete has become prevalent and common practice. Nano materials - compared to the normal concrete affected by Nano chemical materials with cement particles and calcium hydroxide crystals which exist in cement - have a severe effect on the performance of concrete composites.