Creep Strain Behaviour of Triple-Blended Steel Fiber Self-Compacting Concrete Vijaya Kumar Setti, B Dean Kumar, B L P Swami Iop Conference Series Earth and Environmental Science, 2022 The objective of the research article is to present the experimental results on the creep strain behaviour of steel fiber Self-Compacting Concrete (SFSCC). In respect of binder content, aggregate size, fine-to-coarse aggregate ratio, water-to-cement ratio, and chemical admixtures, Self-Compacting Concrete (SCC) differentiates from conventional cement concrete. Steel fibers are also inserted into SCC at a predetermined percentage to reinforce it. Steel fibers have been shown to contribute to improved strength characteristics, a dense mass of concrete with little or no voids, reduced pores in concrete, a higher Young’s modulus, and fewer deflections and strains in concrete. Hence, an investigation was conducted on the creep variation of SFSCC over a longer duration. The test approach follows ASTM C512’s standard test method for concrete creep in compression. The test specimens (SFSCC) are standard cylinders that have been cast and cured for 28 days before being tested. Three SFSCC cylinders with 0.80% steel fiber were tested at the same time. The load is applied to just the cylinders in the loading frame and kept constant, producing constant stress. The strains that occur only due to creep, excluding the initial elastic strain, are digitally recorded. As a logarithmic function, the creep strain-time connection was established. The conclusions are observed based on the findings of the experiments and compared with normal cement concrete (NCC).
Experimental Study on the Presence of Mineral Admixtures and Steel Fiber on the Elastic Properties of Self-Compacting Concrete (SCC) S. Vijaya Kumar, B L P Swami, B. Dean Kumar Iop Conference Series Materials Science and Engineering, 2020 The elastic properties like young’s modulus and poison’s ratio are critical issues in the design of concrete structures. This technical paper focuses on the influence of the mineral admixtures like flyash and condensed silica fume along with percentage of steel fibers on the compressive strength and elastic properties of self-compacting concrete (SCC). The flow ability, passing ability along with the segregation resistance tests were conducted. Designed the M40 grade of SCC as per American concrete institute (ACI) provisions. The cement is mingle with flyash(FA) at 20% and condensed silica fume(CSF) at 10% as partial replacement by weight. The steel fiber of diameter 1mm and aspect ratio of 40 mixed at 0.2, 0.4, 0.6, and 0.8 percentages by volume of the concrete. The Young’s modulus and Poisson’s ratio are resolved as per American standard for testing materials (ASTM) specifications. Based on the experimental investigation, conclusions drawn on the contribution of mineral admixtures and steel fiber on the compressive strength and elastic properties of SCC. A mathematical model developed and checked the validity of the equation with the experimental results.
Effect of metakaolin and condensed silica fume on the rheological and structural properties of self-compacting concrete S.Vijaya Kumar, B.Dean Kumar, B L P Swami Civil Engineering and Architecture, 2020 This article deals with the comparison between the metakaolin and condensed silica fume contributions in the flyash based self-compacting concrete (SCC). Self-compacting concrete with mineral admixtures like flyash and condensed silica fume is prepared by cement replacing partially at 20 and 10 percentages respectively. M40 grade of the concrete was designed by adjusting the ratio of the fine aggregate to the total aggregate volume to fulfill the requirements of the SCC. Another M40 grade of SCC is designed with the flyash and metakaolin as the mineral admixtures with the same percentage of replacement for cement by mass. Rheological properties are examined as per EFNARC specifications for flowability; passing ability and segregation resistance for both the triple blended self-compacting concretes (TBSCC). For getting the required flowability of concrete and for modifying the viscous nature of the concrete, superplasticizer and viscosity modifying agents are additionally added to the concrete. The structural properties like compression and split tensile strengths of the specimens are recorded by conducting the standard tests. By comparing the strength results, it is concluded that metakaolin and silica fume have only marginal changes between them in the rheological as well as the mechanical properties of the triple blended self-compacting concrete.
Development of self-curing concrete using polyethylene glycol as internal curing agent International Journal of Civil Engineering and Technology, 2018
Wind effects on tall building frames-influence of dynamic parameters B. Kumar, B. Swami Indian Journal of Science and Technology, 2010 In the recent past many tall buildings and high rise towers are being built in India. The impact of wind loads are to be considered for the design of these towers on par with steel towers like transmission towers, microwave towers, cooling towers and very tall multistoried building towers. Several failures of structures have occurred in India due to wind. The IS 875 Part-3 deals with wind loads on different types of structures. In the present work, the Gust Effectiveness Factor Method is used, which is more realistic particularly for computing the wind loads on flexible tall slender structures and tall building towers. In this paper frames of different heights are anlaysed and studied
Wind effects on water towers-influence of various dynamic parameters B. Kumar, B. Swami Indian Journal of Science and Technology, 2010 Wind flows relative to the surface of ground and produces loads on the structures standing on the ground. The effect of the wind on the structures is of prime importance. Most of the designers consider the static effect of wind on the structure. But for tall structures the wind interacts with the structure dynamically. The Indian standard code IS 875 (Part-3) 1987 deals with the wind effects on the structures. Water towers are critical structures from the point of the wind effect. Towers of height 16 m, 20 m, 24 m and 28 m are considered in the present analysis. Fundamental frequency is computed by the method given in Indian standard IS 1893-1984. In the computation of fundamental frequency two conditions a) Tank empty and b) Tank full with water are considered. It is found from the study that static pressures are less compared to those given by the gust effectiveness factor method (GEFM). Dynamic interaction between the fluctuating wind component and the structure are considered in GEFM and equivalent static wind pressures are evolved. GEFM is more rational and realistic and recommended for wind load design of water towers.
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Influence of Fibre on the Strength Properties of Triple Blended Self Compacting Concrete BDKBLPS S. Vijay Kumar International Journal of Emerging Technology and Advanced Engineering 7 (2 … , 2017 2017
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MOST CITED SCHOLAR PUBLICATIONS
Development of self-curing concrete using polyethylene glycol as internal curing agent MVJ Kumar, KJ Rao, BD Kumar, VS Reddy Int. J. Civ. Eng. Technol 9 (7), 1133-1141 , 2018 2018 Citations: 66
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Concrete composites with nano silica, condensed silica fume and fly ash–Study of strength properties A Wahab, BD Kumar, M Bhaskar, SV Kumar, BLP Swami Int. J. Sci. Eng. Res 4 (5), 1-4 , 2013 2013 Citations: 22
Wind Effects on Tall Building Frames—Influence of Dynamic Parameters, blp swami dean kumar b Indian Journal of Science and Technology 3 (5), 583-587 , 2010 2010 Citations: 19
Contractor Selection with Risk Assessment by Using AHP Fuzzy Method SATKBD Kumar International Journal of Advances in Engineering and Technology 5 (2), 311-318 , 2013 2013 Citations: 14
Effect of metakaolin and condensed silica fume on the rheological and structural properties of self-compacting concrete SV Kumar, BD Kumar, BLP Swami Civil Engineering and Architecture 8 (5), 1057-1062 , 2020 2020 Citations: 10
Studies on phosphate in reference to zooplankton: A short review B Kumar, V Sharma, K Singh, SMS Gaur Bulletin of Environment, Pharmacology and Life Sciences 1 (5), 71-81 , 2012 2012 Citations: 10
Comparative Analysis of Flat Plate Multistoried Frames with and without Shear Walls under Wind Loads YCBLPS Fayazuddin Ahmed, B.Dean Kumar International Journal of Engineering and advanced Technology 2 (1) , 2012 2012 Citations: 10
Effect of polyethylene glycol on the properties of self-curing concrete MVJ Kumar, KJ Rao, BD Kumar, VS Reddy International Journal of Engineering & Technology 7 (3.29), 529-532 , 2018 2018 Citations: 7
Synthesis and mechanical characterization of woven banana and glass fiber reinforced epoxy composites N Jiyas, B Kumar, M John Ijser 7, 32-38 , 2016 2016 Citations: 7
Critical Gust Pressures on Tall Building Frames- Review of Codal Provisions DBDKDBLP Swami International Journal of Advanced Technology in Civil Engineering 1 (2), 60-66 , 2012 2012 Citations: 6
critical gust pressures on tall building frames- Review of codal provisions BDKBLP Swami International Journal of Advanced Technology in Civil Engineering 1 (2), 60-66 , 2012 2012 Citations: 6
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Comparative study of seismic performance of high rise 30 storey building with beam slab, flat slab and alternate flat-beam slab systems in zone v KC Kodali, BD Kumar, BLP Swami IJRET Int. J. Res. Eng. Technol , 2014 2014 Citations: 5
A novel framework for test data generation using genetic algorithm A Solanki, B Kumar ICIAICT’12 1, 156-168 , 2012 2012 Citations: 5
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Creep Strain Behaviour of Triple-Blended Steel Fiber Self-Compacting Concrete VK Setti, B Dean Kumar, BLP Swami IOP Conference Series: Earth and Environmental Science 982 (1), 012010 , 2022 2022 Citations: 3
Study of Strength Properties of Fibrous Concrete using Metakaolin and Condensed Silica Fume” AWBDK Arfat Khan Md International Journal of Emerging Technology and Advanced Engineering 3 (5 … , 2013 2013 Citations: 3
Critical Gust Effects on Tall Building Frames- Influence of Various Dynamic Parameters NJ swami blp, dean kumar International Conference in Advances in Mechanical and Building Sciences in … , 2009 2009 Citations: 3
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