Effect of GGBS on Fiber Reinforced Concrete

Abstract

Ever since the term high-performance concrete was introduced into the industry, it had widely used in large- scale concrete construction that demands high strength, high flow ability, and high durability. A high-strength concrete is always a high-performance concrete, but a high-performance concrete is not always a high-strength concrete. Durable concrete Specifying a high-strength concrete does not ensure that a durable concrete will be achieved. It is very difficult to get a product which simultaneously fulfill all of the properties. So the different pozzolanic materials like Ground Granulated Blast furnace Slag (GGBS), which can be used in concrete as partial replacement of cement, which are very essential ingredients to produce high performance concrete. So we have performed XRD tests on GGBS to know the variation of different constituent within it. Also it is very important to maintain the water cement ratio within the minimal range, for that we have to use the water reducing admixture i.e. super plasticizer, which plays an important role for the production of high performance concrete. So we herein the project have tested on Ground granulated blast furnace slag, to obtain the desired needs. Also X-ray diffraction test was conducted on GGBS used to analyze their content ingredients. We used synthetic fiber (i.e. Recron fiber) in different percentage i.e. 0.0%, 0.1%, 0.2%, 0.3% to that of total weight of concrete and casting was done. In our study it was used two types of cement, Portland slag cement and ordinary Portland cement. We prepared mortar, cubes, cylinder, prism and finally compressive test, splitting test, flexural test are conducted. Finally porosity and permeability test conducted. Also to obtain such performances that cannot be obtained from conventional concrete and by the current method, a large number of trial mixes are required to select the desired combination of materials that meets special performance.