Rind, Azmat Ali 10MCEM07 Supervisor - Prof: Dr. Abdullah Saand creator Department Of Civil Engineering text Nawabshsh QUEST 2014 monographic 31p, : ABSTRACT In construction industry concrete plays an important role but it has low efficiency to sustain tensile stresses, brittle mode of failure, cracks propagation etc. To overcome these problems ordinary steel reinforcement is most popular mechanism which is being used: in addition to that, various types of fibers are being used, after extensive research. This research study focuses on the use of jute fibers extracted from used burlaps in concrete with different proportions to improve the strength of plain concrete, a number of specimen were cast to study indirect tensile and compressive strength behavior. The concrete mix was prepared with the addition of jute fibers by dry weight with 0.5%, 1.0%, 1.5%, 2.0%, 2.5%, 3.0%, and 3.5%. Test results show that compressive strength of concrete increases up to 30.67% . With the addition of jute fibers from 0.5% to 2.0%. Whereason further addition of jute fibers in the mix, the compressive strength of concrete decreases. Indirect Tensile strength test results shows that tensile strength of concrete increases up to 24.12% with the addition of jute fibers from 0.5 % to 2.0% '*here as on further addition of jute fibers the tensile strength of concrete It was found that workability of concrete mix decreases with the addition of jute fibers more than 1.5%. However the optimum fiber content seems to be 1.5% as that proportion improves compressive strength up to 28.46%, while tensile strength up to 21.86% as compared to virgin concrete and mix remain workable. xiv https://tinyurl.com/73zstmbk https://tinyurl.com/73zstmbk