Impact Factor Value 4.046 e-ISSN: 2456-3463 International Journal of Innovations in Engineering and Science, Vol. 3, No.4, 2018 www.ijies.net 29 Temperature Effects on Curing Of Concrete Containing Silica Mr. Mohit Manwatkar 1 , Dr.P.Y.Pawade 2 1. Student, Master of Technology (Civil Engineering) G.H.Raisoni college of engineering, Nagpur 2 .Head of department, Department of Civil Engineering,G.H.Raisoni college of engineering, Nagpur Abstract – In order to evaluate the increased effects of temperature on Concrete, this study along with comparison with normal cured concrete has been made. The silica fume was replaced with the cement and the dosage which gave the maximum strength was used for further addition of silica sand and steel fibers. The steam curing can be used as a effective tool where high early strength is required like road construction etc. In this literature the compressive strength at the age of 3,7 and 28 days was determined and was further compared with normal cured concrete and also split tensile test was also carried out to see the behaviour of concrete cylinder to the tensile effect. All the study was done for M30 grade concrete and for proper mixing of silica fume with cement super plasticiser was used and the water cement ratio was kept to be 0.45. The results obtained through the research work are thus presented in this paper. Key Words: concrete, mechanical properties, elevated temperature, admixtures, curing method. I- INTRODUCTION The silica fume is discovered from ferrosilicon alloys. It can be either used in slurry from or it can be used in blended form. In any form the appreciable amount of strength can be obtained. The silica fumed concrete is the one which very less times shows the segregation and the problems like bleeding. Silica fume does not generally cause any reduction or increase in setting time. Concretes cured with elevated temperature have been found to have very regular structure in comparison to normal cured concrete. The silica fumed concrete also results in rich mix of the aggregate cement ratio.Silica fume consists concerning of the fine particles together with specific surface as regards six instances over cement due to the fact that its particles are too finer than that of the cement particles. At a typical dosage of 10 % of cement there will be 50000-10000 silica fume grains with that of cement grains. II- EXPERIMENTAL PROGRAMEES The Portland pozzolana cement is used in the research work. Table 1: Shows the various ingredients present in the silica fume Mineral Name % present Sio 2 93-94 Al 2 o 3 0.5-2 Fe 2 o 3 0.1-0.5 Mgo 0.4-1.6 Na 2 o 0.4-0.9 K 2 o 0.2-1.0 Cao 0.2-0.6 S 0.2-0.5 C 0.2-1.2 Loi 0.5-2.6 III- COMPRESSIVE STRENGTH All the results for compressive strength are done on cube of size 150x150x150 mm dimension. And also the temperature of curing was kept to be 60°C and strength at the age of 3,7 and 28 days are determined which is also compared with normal cured concrete and the percentage increase of strength in comparison to normal concrete are also made. 3.1 Results of compressive strength Table 2: shows the different % in which silica fume, super plasticizer, cement etc are added for the preparation of concrete mix in order to M30 grade concrete. 1 2 3 4 5 6 7 8 Mix1 0 398 730 1245 0 0.45 1.59 Mix2 10 381 730 1245 38.1 0.45 1.52 Mix3 12 365 730 1245 43.8 0.45 1.46 Mix4 14 351 730 1245 49.14 0.45 1.40 Mix5 16 339 730 1245 54.24 0.45 1.35 Mix6 18 323 730 1245 58.14 0.45 1.29 Mix7 20 311 730 1245 62.2 0.45 1.24 Column 1: % mix Column 2: silica fume in % Column 3: cement Column 4: sand