IJSER Home >> Journal >> IJSER
International Journal of Scientific and Engineering Research
ISSN Online 2229-5518
ISSN Print: 2229-5518 9    
Website: http://www.ijser.org
scirp IJSER >> Volume 3,Issue 9,September 2012
Mechanical Properties of Concrete Composites With Replacement of Class C Fly Ash And Silicafume 
Full Text(PDF, )  PP.I04‐1I0  
Author(s)
K. Sivalingam, Dr S Jayanthi, Dr K Jagadeesan and Dr S Samson
KEYWORDS
High volume fly ash, Compressive strength, Split tensile strength, Bond strength, Superplaticizes, Concrete Grade and Silica fume.
ABSTRACT
The results of experimental investigations on the study of concrete with partial replacement of cement are presented in this paper. The concrete grade of M30 has been selected and designed as per Indian Standard method. The specimens based on control mix have been cast without fly ash and silica fume. Cement was replaced by 0%, I0%, 20%, 30%, 40%, 50% and 60% of fly ash by the weight. 20 % of silica fume was added to all those mixes and further replacement of cement was tried. Necessary tests were carried out in fresh and hardened concrete. Workability was found from slump test. Tests for compressive strength were carried out on specimens at the age of 1, 7, 14, 28, 56 and 90 days. The split tensile strength and bond strength tests were also carried out at the age of 28 days. The test results were compared with the results of specimen prepared after control mix. The results showed that the strength development of fly ash concrete was less in early ages and increased at higher ages when compared with control specimens. From this study it was concluded that 50% replacement of cement by fly ash contribute reasonable strength along with 20% of silica fume.
References
[1] Siddique Rafat,2003,”Effect of fine aggregate replacement with class F flyash on the mechanical properties of concrete “,Cement and concrete Research,Elsevier Science Ltd,Vol(33),pp-539-547.

[2] A.M.Neville., 1995,”Properties of Concrete”, 4th ed, Dorling Kindersley Pvt Ltd,Noida,India,pp-84-85.

[3] IS:12269, 1987, Specification for 53 grade Ordinary Portland Cement, Bureau of Indian Standards, New Delhi.

[4] IS:383, 1970, Specification for Coarse and Fine Aggregates from Natural sources for Concrete, Bureau of Indian Standards, New Delhi.

[5] A .Fast Paul., 2000,” High Volume Fly Ash Concrete Usuage”, Great Vancouver Regional District AIR 2000 Program Bulletin.

[6] SERC, 2005,” Demonstration of Utilizing High Volume Fly Ash Based Concrete for Structural Applications”, Report for CII, India, SERC, Chennai, India, pp 15-16.

[7] A.R.Santhakumar, 2007,” Concrete Technology”, Oxford University Press, New Delhi,pp-79-80.

[8] IS:456- 2000, Indian Standard Code of Practice for Plain Reinforced Concrete, , Bureau of Indian Standards, New Delhi.

[9] IS:1199- 1959, Indian Standard Methods of Sampling and Analysis of Concrete, , Bureau of Indian Standards, New Delhi.

[10] P.Bartos, 1992, Fresh Concrete, Elsevier, Amsterdam pp-292

[11] M.S. Shetty, 2005,” Concrete Technology”, S.Chand& Company Ltd., New Delhi, pp-315,433

Untitled Page