Steel nails are essential in securing wood, timber, and building materials together and are used often in daily life. This essay investigates the potential instructions for utilising steel nails in composite concrete structures. To determine the compressive strength, samples are cast. Strengthening and flexural strength by incorporating steel nails into a physical matrix. Five distinct ratios were examined in this experiment. Various percentages of 3%, 6%, 9%, 12%, and 15% of steel nails were applied. The outcomes demonstrated that the steel nail\'s impact enhances the compressive and flexural strength of concrete substantially. The purpose of the study is to steel concrete nails.
Introduction
I. INTRODUCTION
Steel nail concrete (SNC) is a type of concrete in which nails are dispersed at random. A nail is a discrete object that comes in a variety of sizes and forms. A more recent composite material, it has good flexural and compressive strength. It improves hardness, resistance to stress, and cracking in mortar caused by plastic shrinkage. These nails increase the structure's strength and lessen the need for reinforcement with heavy steel. Concrete’s increased durability and thermal resistance to freezing and thawing lessen fracture width. The unexpected failure of typical concrete is caused by deflection. That result from the maximum flexural strength is exceeded while on a steel nail, concrete maintained its strength. Even the loads as a result of deflection. A number parameter describes the aspect ratio of the nail.
II. OBJECTIVES
Utilizing steel nails in various ratios, to evaluate the concrete's flexural and compressive strength.
Different percentages of steel nail concrete and regular concrete are compared.
To determine the ideal proportion of steel nails.
III. MATERIALS
A. Ordinary Portland Cement
The properties of cement are presented in Table 1 after evaluating in the laboratory.
Table 1. Properties of cement
Property
Cement (53 grade)
Specific gravity
3.15
Consistency
31%
Initial setting time
100 min
Final setting time
282 min
Fineness test
6%
B. Fine Aggregate
Natural sand is used as a fine aggregate and its properties are presented in table 2.
Table 2. Physical properties of fine aggregate
Property
Aggregate
Specific gravity
2.62
Water absorption
1.5 %
Fineness modulus
2 .4
C. Coarse Aggregate
The physical properties of coarse aggregate are presented in table 3.
Table 3. Physical properties of the natural coarse aggregate
Property
Aggregate
Specific gravity
2.70
Water absorption
1.2%
Bulk density
1500 kg/m3
D. Water
Potable water from the laboratory was used for mixing the concrete and also for curing the specimens.
E. Steel Nail
The section thickness is decreased in ordinary concrete when reinforcement is removed. Steel nails are quite expensive. Savings, a smaller amount of supplies, and quick building using less expensive labour. The distribution of concrete with steel nails assures that there are no micro cracks in the concrete at random.
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IV. EXPERIMENTAL RESULTS
A. Compressive Strength Results
Concrete's compressive strength is evaluated following the curing process using a compression testing machine.
Table 4: Compressive strength of concrete reinforced with steel nail
S.No
% of steel nail
Compressive strength results, N/mm2
28 days
56 days
90 days
1
0%
34.89
37.99
40.81
2
3%
37.57
40.94
43.57
3
6%
42.24
45.96
49.19
4
9%
44.61
48.59
52.09
5
12%
47.98
52.26
56.02
6
15%
45.62
49.62
53.27
Conclusion
1) The compressive strength of normal concrete at 28, 56 and 90 days is 34.89, 37.99 and 40.81 N/mm2.
2) The compressive strength 12% of steel nail is 47.98, 52.26 and 56.02 N/mm2at 28, 56 and 90 days.
References
[1] N.Pannirselvam, K.Chandra mouli, D.V.V.NagaSaiPardhu, V.Anitha .Experimental Investigation on Special Concrete Using Steel Nail ,International Journal of Recent Technology and Engineering ,7(6S), (2019),835 -836.
[2] Alaa C. Galeb, Ihab S Saleh, 2017, Prediction of Compressive Strength of Nail Reinforced Concrete Using Artificial Neural networks, International Journal of Advances in Mechanical and Civil Engineering, 4(5), pp. 2394-2827.
[3] Chandramouli.K, Srinivasa Rao.P, Pannirselvam.N, Seshadri Sekhar.T and Sravana.P, 2010, Strength Properties of Glass Fibre Concrete, ARPN Journal of Engineering and Applied Sciences, 5(4), pp. 1-6.
[4] 4.Dineshkumar.P and Pannirselvam.N, 2018, Performance of Steel Fibre Reinforced Concrete for M40 Grade, International Journal of Current Research in Engineering and technology, 1(1), pp.1-5.
[5] 5. Jais Joy, Rajesh Rajeev, 2015, Performance of Steel Scrap in Concrete, International Journal for Scientific Research and Development, 2(12), pp.755-758.
[6] 6.Shende.A.M, Pande.A.M and Gulfam Pathan.M, 2012, Experimental Study on Steel Nail Reinforced Concrete for M-40 Grade, International Refereed Journal of Engineering and Science, 1(1), pp. 43-48.
[7] 7. Tatwawadi.R.S, Amit.S.Chavhan, Abdul Ghaffar, 2014, Steel Nail Reinforced Concrete, International Journal of Engineering Trends and Technology, 9(15), pp.385-395.
[8] 8.Turnbull.J.E and Lefkovitch.L.P, 1986, Nail Loads for Truss Connections using Steel Vs. Five-Ply and Four-Ply Fir and Spruce Plywood Gussets, Engineering and Statistical Research Institute, Research Branch, Agriculture Canada, 2(2), pp. 167-173