Title:
Flexural Strength and Compressive Strength Relations of Spent Foundry Sand Concrete
Author(s):
Augustine Uchechukwu Elinwa and Nasir Kabir
Publication:
Materials Journal
Volume:
116
Issue:
6
Appears on pages(s):
205-211
Keywords:
basic statistical; compressive strength; flexural strength; regression; spent foundry sand
DOI:
10.14359/51718055
Date:
11/1/2019
Abstract:
This research work was on the evaluation of the flexural strength and compressive strength relationship of spent foundry sand (SFS) concrete. The relationship was established using a concrete mixture of 1:1.71:2.56, a cement content of 404 kg/m2, and a water-cement ratio (w/c) of 0.52. This was used to cast beams of dimensions 150 x 150 x 500 mm (6 x 6 x 20 in.) cured for 90 days in a water curing tank under laboratory conditions. The SFS was used to replace fine aggregate (FA) 0 to 40% by wt. The evaluations on the statistical characteristics of the flexural strength data results showed that the addition of SFS to concrete improved the hydration process. This was reflected in the strength development of the concrete and the strong correlation and level of significance observed with the variables (mixture and age). The values of the modulus of rupture (MOR) obtained are in the range of 4.6 to 6.6 MPa; this was at the optimum replacement of 10%. At this level, the value of the flexural strength was approximately 29% of the compressive strength. The two models chosen that represented the flexural strength and compressive strength relations are the square root and 2/3 models. The relative predictive error (RPE) for each is 0.1 and 0.2, respectively.
Related References:
1. Elinwa, A. U., “Spent Foundry Sand as Partial Replacement of Fine Aggregate in the Production of Concrete,” IOSR Journal of Mechanical and Civil Engineering, V. 11, No. 5, 2014, pp. 76-82. doi: 10.9790/1684-11557682
2. Légeron, F., and Paultre, P., “Prediction of Modulus of Rupture of Concrete,” ACI Materials Journal, V. 97, No. 2, Mar.-Apr. 2000, pp. 193-200.
3. Kepniak, M., and Woyciechowski, P., “The Statistical Analysis of Relation between Compressive and Tensile/Flexural Strength of High Performance Concrete,” Archives of Civil Engineering, V. 62, No. 4, 2016, pp. 95-108. doi: 10.1515/ace-2015-0110
4. Siddique, R., “Utilization of Silica Fume in Concrete: Review of Hardened Properties,” Conservation and Recycling, V. 55, No. 11, 2011, pp. 923-932. doi: 10.1016/j.resconrec.2011.06.012
5. Ismeik, M., “Effect of Mineral Admixtures on Mechanical Properties of High Strength Concrete Made with Locally Available Materials,” Jordan Journal of Civil Engineering, V. 3, No. 1, 2009, pp. 78-90.
6. Khedr, S. A., and Abou-Zeid, M. N., “Characteristics of Silica-Fume Concrete,” Journal of Materials in Civil Engineering, ASCE, V. 6, No. 3, 1994, pp. 357-375. doi: 10.1061/(ASCE)0899-1561(1994)6:3(357)
7. Bhanja, S., and Sengupta, B., “Optimum Silica Fume Content and its Mode of Action on Concrete,” ACI Materials Journal, V. 100, No. 5, Sept.-Oct. 2003, pp. 407-412.
8. Amudhavalli, N. K., and Mathew, J., “Effect of Silica Fume on Strength and Durability Parameters of Concrete,” International Journal of Engineering Sciences & Emerging Technologies, V. 3, No. 1, 2012, pp. 28-35.
9. Bažant, Z. P., and Novak, D., “Proposal for Standard Test of Modulus of Rupture of Concrete with Its Size Dependence,” ACI Materials Journal, V. 98, No. 1, Jan.-Feb. 2001, pp. 79-87.
10. Ahmed, M.; El Hadi, K. M.; Hasan, M. A.; Mallick, J.; and Ahmed, A., “Evaluating the Co-Relationship between Concrete Flexural Tensile Strength and Compressive Strength,” International Journal of Structural Engineering, V. 5, No. 2, 2014, pp. 115-131. doi: 10.1504/IJSTRUCTE.2014.060902
11. Mahmud, H.; Jumaat, M. Z.; and Alengaram, U. J., “Influence of Sand/Cement Ratio on Mechanical Property of Palm Kernel Shell Concrete,” Journal of Applied Sciences (Faisalabad), V. 9, No. 9, 2009, pp. 1764-1769. doi: 10.3923/jas.2009.1764.1769
12. NCHRP, “Guide for Mechanistic-Empirical Design of New and Rehabilitated Pavement Structures,” Final Report, National Cooperative Highway Research Program, Champaign, IL, 2004.
13. Khan, A. A.; Cook, W. D.; and Mitchell, D., “Tensile Strength of Low, Medium, and High-Strength Concretes at Early Ages,” ACI Materials Journal, V. 93, No. 5, Sept.-Oct. 1996, pp. 487-493.
14. Carrasquillo, R. L.; Nilson, A. H.; and Slate, F. O., “Properties of High-Strength Concrete Subjected to Short-Term Loads,” ACI Journal Proceedings, V. 78, No. 3, Mar. 1981, pp. 171-178.
15. Burg, R. G., and Ost, B. W., “Properties of Commercially Available High-Strength Concretes,” R&D Bulletin RD 104T, Portland Cement Association, Skokie, IL, 1992, 55 pp.
16. Légeron, F., and Paultre, P., “HPC Tensile Strength: Measurement and Statistical Distribution,” Research Report No. 96-08, Department of Civil Engineering, University of Sherbrooke, Sherbrooke, QC, Canada, 1996, 80 pp. (in French)
17. ASTM C78/C78M-18, “Standard Test Method for Flexural Strength of Concrete (Using Simple Beam with Third-Point Loading),” ASTM International, West Conshohocken, PA, 2018, 5 pp.
18. Okafor, F. O., “Palm Kernel Shell as a Lightweight Aggregate for Concrete,” Cement and Concrete Research, V. 18, No. 6, 1988, pp. 901-910. doi: 10.1016/0008-8846(88)90026-9
19. Okpala, D. C., “Palm Kernel Shell as a Lightweight Aggregate in Concrete,” Building and Environment, V. 25, No. 4, 1990, pp. 291-296. doi: 10.1016/0360-1323(90)90002-9
20. Teo, D. C. L.; Mannan, M. A.; and Kurian, V. J., “Structural Concrete Using Oil Palm Shell (OPS) as Lightweight Aggregate,” Turkish Journal of Engineering and Environmental Science, V. 30, 2006, pp. 1-7.
21. Alengaram, U. J.; Al-Muhit, B. A.; and Bin-Jumaat, M. Z., “Utilization of Oil Palm Kernel Shell as Lightweight Aggregate in Concrete—A Review,” Construction and Building Materials, V. 38, 2013, pp. 161-172. doi: 10.1016/j.conbuildmat.2012.08.026
22. Mannan, M. A., and Ganapathy, C., “Engineering Properties of Concrete with Oil Palm Shell as Coarse Aggregate,” Construction and Building Materials, V. 16, No. 1, 2002, pp. 29-34. doi: 10.1016/S0950-0618(01)00030-7
23. Hueste, M. B.; Chompreda, P.; Trejo, D.; Cline, D. B. H.; and Keating, P. B., “Mechanical Properties of High-Strength Concrete for Prestressed Member,” ACI Structural Journal, V. 101, No. 4, July-Aug. 2004, pp. 457-465