Paper Details

— Construction industry is one of the rapidly growing industries in the world. In this industry, concrete playsan important role and it is the most widely used man made construction material. Concrete consumes large quantities ofnatural resources. As per the present scenario, it is known that natural resources are depleting worldwide while at thesame time the generated wastes from the industry are increasing substantially. So for the sustainable development ofconstruction industry, methods like use of non-conventional innovative materials and recycling of waste materials shouldbe adopted. Concrete is weak in tension, has limited ductility and little resistance to cracking. This provided themotivation for exploring the benefits of saw dust ash (SDA) as a replacement material and the addition of polypropylenefibres. Sawdust is one of the major underutilized by-products from saw milling operations. The implementation of wastesawdust can not only decrease environmental damage, but also can save the concrete materials. Saw dust ash can beused in light weight concrete that has already received attention over the past years. To strengthen the SDA concrete andmaking it more durable polypropylene fibre is being added. Polypropylene is a synthetic hydrocarbon polymer, the fiberof which is made using extrusion processes by hot drawing the material through a die. Polypropylene fibres may beeffective in distributing impact stresses and providing some enhancement to frost resistance. In this paper cement hasbeen partially replaced with SDA by its weight such as 2.5%, 5%, 7.5%, 10% and 12.5% in M25 grade concrete alongwith polypropylene fibres. Results showed that maximum increase in the compressive strength observed was 7.5% fromboth destructive and non destructive tests along with 1.2% of fibre content.

Gibi Miriyam Mathew, Anju. V, “Comparative Study on Addition of Saw Dust Ash and Polypropylene Fibres to Concrete Using Destructive and Non Destructive Tests”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 4, Issue 5, pp. 266-274, May 2017.