Metakaolin Research Papers - Academia.edu (original) (raw)

Civilization is the part of human life, and technology which is advancing rapidly from centuries. Many efforts are made so far in developing of new construction materials. In the construction industry, concrete technology is plays a vital... more

Civilization is the part of human life, and technology which is advancing rapidly from centuries. Many efforts are made so far in developing of new construction materials. In the construction industry, concrete technology is plays a vital role. The usage of supplementary cementitious materials, (SCM),such as Silica fume, Fly ash, Metakaolin, Hypo sludge, Rice husk ash etc. in concrete is a new innovative usage in the technology. The increasing amount of waste is a concerning reality that has across the sustainability issues of the environment. "The production of cement also reasons for the global warming by releasing carbon-dioxide in the environment. Therefore, formulation of concrete with different type of industrial waste can help in minimizing the environmental problems. The utilization of pozzolanic materials like fly ash (FA) and metakaolin (MK) in concrete is growing in construction industry all around the world to reduce the CO2. release into the environment and reduce energy consumption. By using this industrial waste it can be possible to reduce the cost of the materials and we can get low cost pervious concrete (LCPC) with high strength compare to traditional pervious concrete. In this study low cost pervious concrete (LCPC) cast with supplementary cementitious materials (SCM) fly ash (FA) and metakaolin (MK). The cement has been partially replaced by fly ash and metakaolin accordingly in range of 0%, 5%, 10%, 15% and 20% by weight of cement for 0.35 water/cement ratio. Also cement has been partially replaced by combination of metakaolin and fly ash (MK: FA) in various three proportions accordingly in range of 5:15, 10:10, and 15:5 by weight of cement. For all mix water/cement ratio is 0.35. The Infiltration rate test, density, void ratio, and compression test were carried out. After experiment concluded that combination of metakaolin and fly ash give good compressive strength with cost effectiveness. Key words-Low cost pervious concrete (LCPC), High strength pervious concrete (HSPC), Supplementary cementations materials (SCM), Metakaolin (MK), Fly ash (FA). I. INTRODUCTION Pervious concrete is the special type of high porosity concrete which is used for flatwork applications which allows water from precipitation and other sources to passing through, so it reducing the runoff from a site and recharging ground water levels. As cement industry is one of the most polluted industry, so for reducing the pollution and cost of concrete cement may be fully or partially replaced by waste materials like fly ash, metakaolin, rice husk ash, ceramic powder, furnace slag, silica fume etc. The key ingredient in the pervious concrete mix is cement, which helps in binding and achieving strength. Cement production is major responsible for the greenhouse gases emitted in the environment. So an alternative for reducing cement usage in concrete makes concrete eco-friendly. Thus there comes an idea of partially replacing cement with supplementary cementations materials, (SCM). Material which used as partial replacement of cement must be possess cementitious properties, and the effect of it on the environment should be minimal. In this research, cement is partially replaced with metakaolin (MK) and fly ash (FA) to improve the mechanical properties of pervious concrete. Metakaolin mainly used for improving strength of pervious concrete. So, main aim of this research is to use supplementary cementations materials (SCM) to develop a high strength pervious concrete (HSPC) with less cost so called as a low cost pervious concrete (LCPC).