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Vijaya Sekhar Reddy, M.
- Mechanical Properties of Binary Blended Concrete
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Authors
M. Vijaya Sekhar Reddy
1,
I. V. Ramana Reddy
2,
K. Madan Mohan Reddy
1,
N. Krishna Murthy
3,
T. Venumadhav
4
Affiliations
1 Department of Civil Engineering, Sri kalahasteeswara Institute of Technology, Srikalahasti, AP, IN
2 Department of Civil Engineering, Sri Venkateswara University College of Engineering, Tirupati, AP, IN
3 Engineering Department, Yogi Vemana University, Kadapa, AP, IN
4 Department of Civil Engineering, Audi Sankara College of Engineering, Gudur, AP, IN
1 Department of Civil Engineering, Sri kalahasteeswara Institute of Technology, Srikalahasti, AP, IN
2 Department of Civil Engineering, Sri Venkateswara University College of Engineering, Tirupati, AP, IN
3 Engineering Department, Yogi Vemana University, Kadapa, AP, IN
4 Department of Civil Engineering, Audi Sankara College of Engineering, Gudur, AP, IN
Source
Research Journal of Science and Technology, Vol 4, No 6 (2012), Pagination: 290-294Abstract
This paper presents the evaluation of mechanical properties of binary blended concrete. Binary blended concrete have been developed by the individual replacement of Supplementary Cementing Materials (SCM's) like Fly-ash, Silica fume and Metakaoline. The results of binary blended concrete are compared with those of control concrete. The main purpose of this investigation is to develop confidence among user agencies in India to use mineral and chemical admixtures in a desirable proportion in most of the construction works. The paper presents experimental studies conducted on M30 grade of concrete using SCMs and chemical admixtures in various proportions. The cubes and cylindrical specimens after de-moulding were stored in curing tanks and on removal of cubes and cylinders from water the compressive strength and split tensile strength were conducted at 7days, 28days, 90 days and 180 days. The test results were compared with individual percentage replacements of SCMs for M30 grade concrete with and without chemical admixture.Keywords
Supplementary Cementing Materials (SCMs), Binary Blended Concrete, Compressive Strength, Split Tensile Strength, Flyash (FA), Silica Fume (SF), Metakaoline.- Groundnut Shell Ash as Partial Replacement of Cement in Concrete
Abstract Views :183 |
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Authors
Affiliations
1 Department of Civil Engineering, Srikalahasteeswara Institute of Technology, Srikalahasti, Andhra Pradesh, IN
1 Department of Civil Engineering, Srikalahasteeswara Institute of Technology, Srikalahasti, Andhra Pradesh, IN
Source
Research Journal of Science and Technology, Vol 9, No 3 (2017), Pagination: 313-316Abstract
Ordinary Portland cement is recognized as a major construction material throughout the world. Researchers all over the world today are focusing on ways of utilizing either industrial or agricultural waste, as a source of raw materials for industry. This waste, utilization would not only be economical, but may also result in foreign exchange earnings and environmental pollution control as industrial wastes, such as blast furnace slag, sugar cane bagasse ash, ground nut shell ash, fly ash and silica fume are being used as supplementary cementing materials (SCMs). The utilization of industrial and agricultural waste produced by industrial process has been the focus of waste reduction research for economical, environmental, and technical reasons. The present study is aimed at ground nut shell ash (GSA), with partial replacement of cement. The replacement is done at various percentages like 0%, 5%, 10%, 15% and its effect on properties of concrete was investigated. Fresh and hardened properties were exercised with various replacement levels. The study indicated that ground nut shell ash can effectively be used as cement replacement (up to 10%) without substantial change in strength.Keywords
Workability, Compressive Strength, Ground Nut Shell Ash, Supplementary Cementing Materials, Super Plasticizer.References
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- Mahmoud, H., Belel, Z. A. and Nwakaire, C. (2012). Groundnut Shell Ash as a Partial Replacement of Cement in Sandcrete Blocks Production. International Journal of Development and Sustainability, Vol. 1(3), pg. 1026 - 1032.
- Sadaa, Y.D. Amarteyb, S. Bakoc B.H (2013) An Investigation into the Use of Groundnut Shell As Fine Aggregate Replacement. Department of Civil Engineering, Ahmadu Bello University, Zaria, Nigeria, Vol 32, No 1, March, pg 54-60.
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