Saad Issa Sarsam
- Professor, Sarsam and Associates Consult Bureau (SACB), Baghdad-IRAQ Formerly at Department of Civil Engineering, College of Engineering, University of Baghdad, , Iraq
Additives are implemented as partial replacement of Portland cement in concrete to enhance the required physical properties. In the present investigation, roller compacted concrete slab samples were prepared using gap and dense aggregate gradation. Three percentages of Portland cement were adopted, (16, 12, and 10) % by weight of aggregates. Three types of additives, (hydrated lime, fly ash, and fumed silica) were implemented as partial substitute of Portland cement. Core specimens have been obtained from the prepared slab samples and tested for indirect tensile strength. It was observed that dense gradation exhibits higher tensile strength than gap gradation by (35.6, 9, and 5.5) % for mixtures of (10, 12, and 16) % cement content. When the fumed silica additive was incorporated as partial replacement of cement, the indirect tensile strength of concrete declines by (2.7, 43.8, and 57.5) % and (36.8, 54.1, and 67.6) % for (10, 12, and 15) % replacement for gap and dense gradation respectively. The indirect tensile strength increases after the partial replacement of cement by lime for dense and gap graded mixtures by (187.8, 96.5, and 61.6) % and (260, 131, and 78.5) % for (5, 7, and 10) % replacement respectively. However, the tensile strength of concrete increases after the partial replacement of Portland cement by fly ash for gap and dense graded mixtures by (201, 77, and 24.2) % and (117, 45, and 16.5) % for (20, 30, and 40) % replacement respectively. Fly ash and Hydrated lime are recommended as additives for partial replacement of Portland cement in roller compacted concrete pavement from the indirect tensile strength point of view.
Keywords: Indirect tensile strength, roller compacted concrete, fly ash, additives, lime, fumed silica.
[This article belongs to International Journal of Concrete Technology(ijct)]
1. Saluja S., Goyal S., and Bhattacharjee B. Strength properties of roller compacted concrete containing GGBS as partial replacement of cement. Journal of Eng. Research Vol. 7 No. (1) March 2019. P. 1-17.
2. Ashteyat A., Al Rjoub Y., Murad Y., Asaad S. Mechanical, and durability behavior of rollercompacted concrete containing white cement bypass dust and polypropylene fiber. European Journal of Environmental and Civil Engineering. 2019. https://doi.org/10.1080/19648189.2019.1652694.
3. Chhorn, C.; Hong, S.J.; Lee, S.W. Relationship between compressive and tensile strengths of roller-compacted concrete. J. Traffic Transp. Eng. 5(3), 2018. P. 215–223.https://doi.org/10.1016/j.jtte.2017.09.002. International Journal of Concrete Technology
4. Hesami, S., Modarres, A., Soltaninejad, M., & Madani, H. Mechanical properties of roller compacted concrete pavement containing coal waste and limestone powder as partial replacements of cement. Construction and Building Materials, 111, May 2016. P. 625–636. http://doi:10.1016/j.conbuildmat.2016.02.116.
5. Adamu, M., Mohammed, B. S., & Mohd, S. L. Mechanical properties and performance of highvolume fly ash roller compacted concrete containing crumb rubber and nano silica. Construction and Building Materials, 171, 2018, P. 521–538. http://doi:10.1016/j.conbuildmat.2018.03.138.
6. Rahmani E., Sharbatdar K., Beygi M. A comprehensive investigation into the effect of water to cement ratios and cement contents on the physical and mechanical properties of Roller Compacted Concrete Pavement (RCCP). Construction and Building Materials 253, 2020. 119177. Elsevier, https://doi.org/10.1016/j.conbuildmat.2020.119177.
7. Hashemi M., Shafigh P., Abbasi M., and Asadi I. The effect of using low fines content sand on the fresh and hardened properties of roller-compacted concrete pavement. Case Studies in Construction Materials, Vol. 11, p. e00230, 2019.
8. Mohammed B., and Adamu M. Mechanical performance of roller compacted concrete pavement containing crumb rubber and nano silica. Construction and Building Materials, Vol. 159, pp. 234-251, 2018.
9. Lam M., Jaritngam S., Duc-Hien Le. Roller-compacted concrete pavement made of Electric Arc Furnace slag aggregate: Mix design and mechanical properties. Construction and Building Materials, Vol. 154, P. 482-495, 2017.
10. LaHucik J., Dahal S., Roesler J., and Amirkhanian A. Mechanical properties of roller-compacted concrete with macro-fibers. Construction and Building Materials, Vol. 135, P. 440-446, 2017.
11. Li M., Zhang M., Hu Y., and Zhang J. Mechanical properties investigation of high-fluidity impermeable and anti-cracking concrete in high roller-compacted concrete dams. Construction and Building Materials, Vol. 156, P. 861-870, 2017.
12. Khed V., Gokulanadh V., Latha M. A Review on Recent Advancements in Roller Compacted Concrete. International Journal of Inventive Engineering and Sciences (IJIES).Volume-5 Issue12, October 2020. http://.DOI:10.35940/ijies.K0997.1051220.
13. Iraqi Organization of Standards, IOS 5: 1984, for Portland cement. 1984.
14. ASTM, American Society for Testing and Materials, ASTM: Road and Paving Material, VehiclePavement System, Annual Book of ASTM Standards, Vol. 04.03. 2016. www.Astm.org.
15. British Standard 882. Concrete Aggregates, British Standards Institution, London, 1965.
16. SCRB, State commission of roads and bridges, Standard specifications for roads and bridges. Ministry of Housing, and Construction, 2003. Iraq.
17. ASTM D-1557, Standard Test Method for Moisture-Density Relations of Soils and SoilAggregate Mixtures Using Modified Effort (56,000 ft-lbf/ft3 (2,700 kN-m/m3)). Annual Book of ASTM Standards. American Society for Testing and Materials. 04(8): 2002. P. 206–210.www.Astm.org.
18. Sarsam S. Evaluation of Roller Compacted Concrete Pavement Properties, Engineering and Development, Scientific Journal of AL-Mustansiriah University, 6, 2002, P.59-74.
19. Sarsam S., Salih A., Ghazi S. Effect of Hydrated Lime on the Properties of Roller Compacted Concrete. Journal of Engineering, Number 3 Volume 19 March. 2013, P. 377-387.
20. Sarsam S. I. Assessing the Influence of Aggregates and Cement Types on Fresh Roller Compacted Concrete Mixture. International Research Journal of Multidisciplinary Technovation, Vol 3, Issue 3, 2021. Asian research Association. P. 23-31. DOI: https://doi.org/10.34256/irjmt2134.
21. Vahedifard, F., Nili, M., & Meehan, C. L. Assessing the effects of supplementary cementitious materials on the performance of low-cement roller compacted concrete pavement. Construction and Building Materials, 24(12), 2010, P. 2528–2535.
|Received||October 1, 2021|
|Accepted||October 10, 2021|
|Published||November 30, 2021|