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Shrinkage of High Strength Concrete
Abstract:This paper presents the results of an experimental investigation carried out to evaluate the shrinkage of High Strength Concrete. High Strength Concrete is made by partially replacement of cement by flyash and silica fume. The shrinkage of High Strength Concrete has been studied using the different types of coarse and fine aggregates i.e. Sandstone and Granite of 12.5 mm size and Yamuna and Badarpur Sand. The Mix proportion of concrete is 1:0.8:2.2 with water cement ratio as 0.30. Superplasticizer dose @ of 2% by weight of cement is added to achieve the required degree of workability in terms of compaction factor. From the test results of the above investigation it can be concluded that the shrinkage strain of High Strength Concrete increases with age. The shrinkage strain of concrete with replacement of cement by 10% of Flyash and Silica fume respectively at various ages are more (6 to 10%) than the shrinkage strain of concrete without Flyash and Silica fume. The shrinkage strain of concrete with Badarpur sand as Fine aggregate at 90 days is slightly less (10%) than that of concrete with Yamuna Sand. Further, the shrinkage strain of concrete with Granite as Coarse aggregate at 90 days is slightly less (6 to 7%) than that of concrete with Sand stone as aggregate of same size. The shrinkage strain of High Strength Concrete is also compared with that of normal strength concrete. Test results show that the shrinkage strain of high strength concrete is less than that of normal strength concrete.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1072363Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 2286
 ACI committee 363 (1884), "State of the Art Report on High Strength Concrete". ACI Journal proceedings Vol. 81, No.4 pp. 364-411.
 Freedmon, S., "High Strength Concrete," Modern Concrete, 34, 6, 1970, pp. 29-36; 7, 1970 pp. 28-32, 8, 1970 pp. 21-24, 9, 1971, pp. 15-23, 10, 1971, pp. 16-23.
 Nagataki, S., and Yonekura, A., "Studies of the Volume Changes of High Strength Concrete with Superplastizer," Journal, Japan Prestressed Concrete Engineering Association (Tokyo), V. 20, 1978, pp. 26-33.
 Parrot, I.J., "Properties of High Strength Concrete," Technical Report No. 42.417, Cement and Concrete Association, Wexham Springs, 1969, pp. 12.
 Swamy R.N., and Anand K.L., "Shrinkage and Creep of High Strength concrete," Civil Engineers and Public Works Review (London), V. 68, No. 807, Oct. 1973, pp. 859-868,162-163.
 Aitcin, P.C., Saikae S.L. and Laplnte, P., "Long term characteristics of a very high concrete," Concrete International, 1990, pp. 40-44.
 Gambhir, M. L., "Concrete Technology", Second Edition, Tata McGraw Hill Publishing Company Ltd., New Delhi. 1988.
 ACI Committee 209, "Prediction of Creep, Shrinkage and Temperature Effects in Concrete Structures", Manual of Concrete Practice Part-I, 1990, American Concrete Institute, 209 R, 1-92.