Document Type : Research Paper
Authors
Forensic Structural Engineering Division, School of Engineering and Technology, National Forensic, Sciences University, Gandhinagar Gujarat, India
Abstract
A current direction in scientific research is the search for technological solutions that provide high reliability for building materials. Incorporating self-sealing agents during the design phase makes concrete more eco-friendly by reducing the maintenance processes and extending concrete's lifespan which leads to reducing the need to produce cement causing a lot of CO2 emissions. As a consequence, this investigation describes an attempt to assess the performance of superabsorbent polymer (SAP) as a self-sealing agent. In the experimental work, two different particle sizes were taken into consideration, SAP1 (425–600μm) and SAP2 (> 600 μm) and for preparing SAP-based concrete and the ratio of SAP was (0.3% wt of cement) with water/ cement (0.4). The regular test was performed for compressive strength at the age of 28 days and the pre-crack phase to generate the initial crack started after 28 days. Two series of sealing periods Cy4th and Cy10th under wet-dry cycles were taken to promote the sealing process. The DZM (Digital Zoom Microscope) system for microscopic analysis was used to detect the self-sealing phenomenon and the width of the sealing on the concrete cracks' surface by using specialist software (image process). The outcomes demonstrated that there was a positive effect of using SAP as a sealing agent, depending on particle size the SAP2 healed the crack up to 0.15mm and the percentage of partially sealing at Cy4th was 64% compared to the other mixes.
Keywords
- M Jasim, A. and I. A Mahmood, Flexural and fatigue behaviour of natural fibrous reinforced polymeric composite materials. Al-Qadisiyah Journal for Engineering Sciences,15(2) (2022).86-92. https://doi.org/10.30772/qjes.v15i2.818.
- Al-Nawasir, R.I. and B.H. Al-Humeidawi, A scientometric study and a bibliometric review of the literature on the design and construction of semi-flexible pavement. Al-Qadisiyah Journal for Engineering Sciences, . 16 (2) ( 2023). https://doi.org/10.30772/qjes.v16i2.921.
- Hong, G. and S. Choi, Rapid self-sealing of cracks in cementitious materials incorporating superabsorbent polymers. Construction and Building Materials,(2017) 143, 366-375. https://doi.org/10.1016/j.conbuildmat.2017.03.133.
- Rania, A. and J.T. Al-Obaedi, Characteristics of on-street parking in Al-Diwaniyah urban street. Al-Qadisiyah Journal for Engineering Sciences, . 15(2) (2022) 122-126. https://doi.org/10.30772/qjes.v15i2.8372.837.
- Hong, G. and S. Choi, Modeling rapid self-sealing of cracks in cementitious materials using superabsorbent polymers. Construction and Building Materials, (2018) 164, 570-578. https://doi.org/10.1016/j.conbuildmat.2018.01.017.
- Snoeck, D., Superabsorbent polymers to seal and heal cracks in cementitious materials. RILEM technical letters, (2018) 3 32-38. https://doi.org/10.21809/rilemtechlett.2018.64.
- Alzamili, H. and A. Elsheikh, Performance of reinforced concrete elements retrofitted with SIFCON under elevated temperatures. Al-Qadisiyah Journal for Engineering Sciences, 16 (1) (2023) 53-57. https://doi.org/10.30772/qjes.v16i1.969.
- Hong, G., et al., Hysteretic behavior of rapid self-sealing of cracks in cementitious materials incorporating superabsorbent polymers. Construction and Building Materials,( 2019) 195 187-197. https://doi.org/10.1016/j.conbuildmat.2018.11.075.
- Majeed, S.H., E.K. Sayhood, and N.S. Mohammed, Residual strength capacity of reinforced reactive powder concrete two-way slabs subjected to drop weight. Al-Qadisiyah Journal for Engineering Sciences, 16(1) (2023). https://doi.org/10.30772/qjes.v16i1.920.
- Snoeck, D., et al., Self-healing cementitious materials by the combination of microfibres and superabsorbent polymers. Journal of Intelligent Material Systems and Structures, 25(1) (2014) 13-24. https://doi.org/10.1177/1045389X12438623.
- Gruyaert, E., et al., Self-healing mortar with pH-sensitive superabsorbent polymers: testing of the sealing efficiency by water flow tests. Smart Materials and Structures, 25(8) (2016.) 084007. https://doi.org/10.1088/0964-1726/25/8/084007.
- Van Tittelboom, K., et al., Self-healing efficiency of cementitious materials containing tubular capsules filled with healing agent. Cement and Concrete Composites, 33(4) (2011) 497-505. https://doi.org/10.1016/j.cemconcomp.2011.01.004.
- Van Tittelboom, K., et al., Comparison of different approaches for self-healing concrete in a large-scale lab test. Construction and building materials,(107) (2016) 125-137. https://doi.org/10.1016/j.conbuildmat.2015.12.187.
- Pelto, J., et al., Application of encapsulated superabsorbent polymers in cementitious materials for stimulated autogenous healing. Smart Materials and Structures, 26 (10) (2017) https://doi.org/10.1088/1361-665X/aa8497.
- , Specifications for coarse and fine aggregates from natural resources for concrete. Bureau of Indian Standards New Delhi, India.
- Park, B. and Y.C. Choi, Self-healing capability of cementitious materials with crystalline admixtures and super absorbent polymers (SAPs). Construction and Building Materials, ( 189) (2018). 1054-1066. https://doi.org/10.1016/j.conbuildmat.2018.08.184.
- Snoeck, D., P. Dubruel, and N. De Belie. How to seal and heal cracks in cementitious materials by using superabsorbent polymers. in Application of superabsorbent polymers and other new admixtures in concrete construction, RILEM Publications,
- Snoeck, D., C. Schröfl, and V. Mechtcherine, Recommendation of RILEM TC 260-RSC: testing sorption by superabsorbent polymers (SAP) prior to implementation in cement-based materials. Materials and Structures, 51(5) (2018). 116. https://doi.org/10.1617/s11527-018-1242-8.
- Ahmadi, K., S.S. Mousavi, and M. Dehestani, Influence of nano-coated micro steel fibers on mechanical and self-healing properties of 3D printable concrete using graphene oxide and polyvinyl alcohol. Journal of Adhesion Science and Technology, (2023) 1-22. https://doi.org/10.1080/01694243.2023.2253623.
- Hong, G., C. Song, and S. Choi, Autogenous healing of early-age cracks in cementitious materials by superabsorbent polymers. Materials, 2020. 13(3): 690. https://doi.org/10.3390/ma13030690.
- Rodríguez, C.R., et al., Numerical investigation of crack self-sealing in cement-based composites with superabsorbent polymers. Cement and Concrete Composites, 2019. 104: 103395. https://doi.org/10.1016/j.cemconcomp.2019.103395.
- Lee, H.X.D., H.S. Wong, and N. Buenfeld. Self-sealing cement-based materials using superabsorbent polymers. in Proceedings of the International RILEM Conference on Use of Superabsorbent Polymers and Other New Additives in Concrete, Lyngby, Denmark. 2010.
- Nataraja, M. and L. Das, Concrete mix proportioning as per IS 10262: 2009–Comparison with IS 10262: 1982 and ACI 211.1-91. The Indian Concrete Journal, 2010: p. 64-70.
- Prince, M.L., H. Zhuye, and F. Yong, Self-Healing Concrete Test Method and Experimental Procedure Conducted on Grout Specimens, International Journal for Research in Applied Science & Engineering Technology, IV(10) 2022 640-646.
- Mechtcherine, V., et al., Effect of superabsorbent polymers (SAP) on the freeze–thaw resistance of concrete: Results of a RILEM interlaboratory study. Materials and Structures, 50 (2017) 1-19. https://doi.org/10.1617/s11527-016-0868-7.
- Mousavi, S.S., et al., On mitigating rebar–concrete interface damages due to the pre-cracking phenomena using superabsorbent polymers. Construction and Building Materials, 25 (3) (2020) https://doi.org/10.1016/j.conbuildmat.2020.119181.
)
