Investigation of the Effect of Microcapsule Additive on Mechanical and Physical Properties of Concrete
Engineering and Technology Journal,
2021, Volume 39, Issue 11, Pages 1639-1645
AbstractCracks are a fundamental problem in concrete, so this research investigates an experimental study of the effect of adding SiO2 on the self-healing behaviour of concrete. The study is done by studying the physical properties, microstructure, and mechanical properties of concrete. Microcapsules were prepared to contain (cement and nano SiO2) in a (palettization (fluidize bed coating) method) with (5,10, and 15) % of cement weight. The ratio of the prepared concrete mixture was (1: 2: 4) and the ratio of water to cement (W / C) 0.45 by the weight of cement was also added as 0.6% Superplasticizer to all concrete mixtures. SiO2 MC is added with (2.5) % of the cement weight in the concrete mixture. In this study, porosity, density, and water absorption tests were performed to study the physical properties, compressive and bending strength to study mechanical properties. So, referring to the results, (SiO2 MC) was used as an effective effect in the self-healing cracking mechanism, and in improving the bending strength and compressive strength. Also, 10 % wt. was recorded as the best addition because it has a positive effect on properties to be applied in construction.
- Concrete mix has been reinforced with SiO2 microcapsules to seal concrete cracks.
- Great Self-healing capacity of concrete that contain SiO2 microcapsules.
- Crack of concrete with SiO2 microcapsules was self-healed in 28 days.
 M. Wu, B. Johannesson, and M. Geiker. A review: Self-healing in cementitious materials and engineered cementitious composite as a self-healing material, Construction and Building Materials, 28, (2012), 571-583.
 T. Qureshi and A. Al-Tabbaa. Self-healing concrete and cementations materials, Advanced Functional Materials Intech Open, (2020). [Online]. Available: DOI: 10.5772/intechopen.92349.
 X. Shang, J. Li, and B. Zhan, Properties of sustainable cellular concrete prepared with environment-friendly capsule aggregates, Journal of Cleaner Production, 267, (2020), 122018-122027.
 A. Heidari, and D. Tavakoli, A study of the mechanical properties of ground ceramic powder concrete incorporating nano-SiO2 particles, Construction and Building Materials, 38, (2013), 255-264.
 P. Aggarwal, R. P. Singh, and Y.Aggarwal, Use of nano-silica in cement-based materials—A review, Cogent Engineering, 2, (2015).
 B. Dong, G. Fang, W. Ding, Y. Liu, J. Zhang, N. Han and F. Xing, Self-healing features in Cementitious material with urea–formaldehyde/epoxy microcapsules, Construction and Building Materials, 106, (2017), 609-616.
 P. Minnebo, G. Thierens, G. Valck, K. Tittelboom, N. Belie, D. Hemelrijck and E. Tsangouri, A novel design of autonomously healed concrete: towards a vascular healing network, Materials, 10, (2017), 2-21.
 K. Tittelboom, E. Tsangouri, D. Hemelrijck and N. Belie, The efficiency of self-healing concrete using alternative manufacturing procedures and more realistic crack patterns, Cement & Concrete Composites 57, (2014), 4-19.
 B. Dong, Y. Wang, G. Fang, N. Han, F. Xing, and Y. YuanL, Smart releasing behavior of a chemical self-healing microcapsule in the stimulated concrete pore solution, Cement and Concert Composition, 56, (2015), 46-50.
 B. Hilloulin, K. V. Tittelboom, E.Gruyaert, N. D. Belie, and A. Loukili, Design of polymeric capsules for self-healing concrete, Cement and Concert Composition, 55, (2015), 298-307.
 K. Mei, X. Cheng, L. Zhang , X. Guo, J. Zhuang , and Ch. Zhang, Self-healing mechanism of Zn enhanced cement stone: an application for sour natural gas field, Construction and Buildin Materials, 227, (2019), 1-10.
 W. Du, J. Yu, B. He, Y. He, P. He, Y. Li, and Q. Liu, Preparation and characterization of nano SiO2/paraffin/PE wax composite shell microcapsules containing TDI for self-healing of cementitious materials. Construction and Building Materials, 231, (2020), 1-10.
 Testing concrete, method of normal curing of test specimens (20°C method), BS (1983), 1881-111.
 Testing concrete, method for determination of compressive strength of concrete cubes, BS (1983), 1881-116.
 N. Shi, Y. Chen and Z. Li, Crack risk evaluation of early age concrete based on the distributed optical fiber temperature sensing", Advances in Materials Science and Engineering, (2016), 1-12.
 Standard test method for density, absorption, and voids in hardened concrete, C: 642, ASTM, (2013).
 B.Mohammad, A. Joshaghani , and F .Althoey, Nano-SiO2 contribution to mechanical, durability, fresh and microstructural characteristics of concrete: A review, Construction and Building Materials , 181, (2018), 27-41.
 W. Du, J. Yu , Y. Gu, Y. Li, X. Han, and Q. Liu, Preparation and application of microcapsules containing toluene-di-isocyanate for self-healing of concrete, Construction and Building Materials, 202, (2019), 762-769.
 A. Z. Dahesh, F. M. Othman, and A. A. Abdul-hamead, Influence of microfibers additive on the self-healing, Engineering and Technology Journal, 39, (2021), 104-115.
 A. A. Abdul -Hamead ,F. M .Othman, and R .K. Mohammed, Investigation the effect of nano-particles and recycling mortar additives on physical and mechanical properties of concrete, Engineering and Technology Journal, 36, (2018), 1-9.
 D. M. Abdullah, A. A. Abdulla Hameed , and F. M. Othman, Preliminary investigation on G cement modified by nano-powder, Engineering and Technology Journal, 38, (2020), 143-151.
 A. A. Abdulla Hameed, F. M. Othman, andS. Ibrahim, Studying the effect of nano additives and coating on some properties of cement mortar mixes, Engineering and Technology Journal, 34, (2016), 1-14.
 H. Castaneda, M. Hassan, M. Radovic, J. Milla, and A. Karayan, Self-healing microcapsules as concrete aggregates for corrosion inhibition in reinforced concrete, Tran-SET, 17CLSU08, (2018), 9-65.
 W. Li, Z. Jiang and Z. Yang, Acoustic characterization of damage and healing of microencapsulation based self-healing cement matrices, Cement and Concrete Composites, 84, (2017), 3-20.
 A. Kanellopoulos, P. Giannaros, D. Palmer, A. Kerr, and A. Al-Tabbaa, Polymeric microcapsules with switchable mechanical properties for selfhealing concrete: synthesis, characterization and proof of concept, Smart Materials and Structures, 26, (2017), 123-128.
 P. Giannaros, A. Kanellopoulos, and A. Al-Tabbaa, Sealing of cracks in cement using microencapsulated sodium silicate, Smart Material Structure, 25, (2018), 1-12.
 A. Al-Tabbaa, C. Litina, P. Giannaros, and A. Kanellopoulos, and L. Souza, First UK field application and performance of microcapsule-based self-healing concrete, Construction and Building.
- Article View: 96
- PDF Download: 92