Achieving sustainable performance: synergistic effects of nano-silica and recycled expanded polystyrene in lightweight structural concrete.

Publisher: Nature Publishing Group Country of Publication: England NLM ID: 101563288 Publication Model: Electronic Cited Medium: Internet ISSN: 2045-2322 (Electronic) Linking ISSN: 20452322 NLM ISO Abbreviation: Sci Rep Subsets: PubMed not MEDLINE; MEDLINE

Original Publication: London : Nature Publishing Group, copyright 2011-

Lightweight concrete, particularly polystyrene concrete, has been extensively utilized in civil engineering for decades. The incorporation of waste expanded polystyrene (EPS) as a filler material in the production of lightweight concrete presents significant advantages from a circular economy perspective. Prior research indicates that increasing the proportion of lightweight aggregates, such as EPS, typically results in reductions in strength and bulk density. The utilization of substantial amounts of EPS waste in the formulation of structural polystyrene concrete is crucial for advancing sustainable construction practices. This study investigates the effects of varying nano-silica content on the bulk density, compressive strength, flexural strength, splitting tensile strength, and water penetration depth of structural polystyrene concrete. Concrete specimens were prepared by substituting 25%, 50%, 75%, and 100% of sand with EPS waste, while evaluating nano-silica contents of 0.75%, 1%, and 1.25%. The findings reveal that increasing the volume fraction of EPS corresponds to a decrease in the concrete's bulk density. This research provides critical insights into optimizing structural lightweight concrete, thereby promoting advancements in sustainable construction applications.
(© 2024. The Author(s).)

Dominic Stefan Law Yim Wan1 & Farhad Aslani, M. A. S. C. E. Guowei Ma3 Lightweight Self-compacting concrete incorporating perlite, Scoria, andPolystyrene aggregates. J. Mater. Civ. Eng. 30(8), 04018178 (2018). (PMID: 10.1061/(ASCE)MT.1943-5533.0002350)
Erfan & Najaf Maedeh Orouji, and Seyed Mehdi Zahrai* improving nonlinear behavior and tensile and compressive strengths of sustainable lightweight concrete using waste glass powder, nanosilica, and recycled polypropylene fiber. Nonlinear Eng. 11, 58–70 (2022). (PMID: 10.1515/nleng-2022-0008)
Magdy, A., Abd-ElAziz, A. S. & Faried*, Mahmoud, M. A. Kamel Influence of Silica Fume Incorporation on the Fresh, Thermal and Mechanical properties of expanded polystyrene (EPS) foamed concrete. Am. J. Civil Eng. 5 (3), 188–195. https://doi.org/10.11648/j.ajce.20170503.19 (2017). http://www.sciencepublishinggroup.com/j/ajce (Online. (PMID: 10.11648/j.ajce.20170503.19)
Eethar Thanon Dawood, Ali Jihad Hamad. Proportioning of Lightweight Concrete by the Inclusions of Expanded Polystyrene Beads (EPS) and Foam Agent ISSN: 1813-162X Tikrit Journal of Engineering Sciences. http://www.tj-es.com .
Sang-Yeop Chung. Mohamed Abd Elrahman. Dietmar Stephan Effects of expanded polystyrene (EPS) sizes and arrangements on the properties of lightweight concrete Materials and Structures. 51:57. https://doi.org/10.1617/s11527-018-1182-3 (2018).
Ashish, S. et al. Quaz. LIGHT WEIGHT CONCRETE BY USING EPS BEADS International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395–0056.
Islam, M. M. U. A study on the integrated implementation of supplementary cementitious material and coarse aggregate for sustainable concrete. J. Building Eng. https://doi.org/10.1016/j.jobe.2023.106767 (2023). (PMID: 10.1016/j.jobe.2023.106767)
Islam, M. M. U., Li, J., Roychand, R. & Saberian, M. Microstructure, thermal conductivity and carbonation resistance properties of sustainable structural lightweight concrete incorporating 100% coarser rubber particles. Constr. Build. Mater. 408, 133658. https://doi.org/10.1016/j.conbuildmat.2023.133658 (2023). (PMID: 10.1016/j.conbuildmat.2023.133658)
Elkady, H., Elfeky, M. S., Serag, M. I. & Yasien, A. M. Assessment of mechanical strength of nano silica concrete (NSC) subjected to elevated temperatures, Journal of Structural Fire Engineering © Emerald Publishing Limited. 2040-2317. https://doi.org/10.1108/JSFE-10-2017-0041 .
M. S. Elfeky Ahmed Maher Passant Youssef Sara Ibrahim. Effect of nano silica addition on enhancing the performance of cement composites reinforced with nano cellulose fibers. AIMS Mater. Sci. 6(6): 864–883. https://doi.org/10.3934/matersci.2019.6.864.
Muhammad, S. & Elfeky, Mohamed, I. S. Passant Youssef the Effect of Super-plasticizer and Ultra-Sonic Process on the CNT Dispersion in Combination with Nano Silica in Cement Composites to Enhance Its Mechanical Properties (مؤتمر الاسكان العربى السابع نحو مدن ذكية مستدامة تحقق جودة الحياة, 2022).
Kamal Sharobim Muhammad S. Elfeky Hassan Ahmed Mohamadien Ahmed Maher. The effect of sonicated nano-silica on the mechanical and physical properties of high strength concrete Ain shams university faculty of engineering structural engineering department fifteenth international conference on structural and geotechnical engineering advances in construction techniques p-ISSN: 2395-0072 Volume: 07 Issue: 07 | July 2020 www.irjet.net.
Li, X., Huang, Z., Liu, F. & Zhang, Y. Effect of nano-SiO2 on properties of lightweight aggregate concrete using recycled EPS. Constr. Build. Mater. 117, 1–7 (2016).
C. Jian. The mechanical properties that nano-sio2 affect EPS light-aggregate concrete advanced materials research. vol. 571, (2012).
Wang, X., Li, X., Zhang, Y. & Huang, Z. Effect of nano-SiO2 on mechanical properties of lightweight aggregate concrete using recycled EPS. Constr. Build. Mater. 161, 156–163 (2018).
Zhang, Y., Li, X. & Huang, Z. Effect of nano-SiO2 on thermal conductivity of lightweight aggregate concrete using recycled EPS. Constr. Build. Mater. 189, 1033–1040 (2018).
Zhang, Y., Li, X. & Huang, Z. Effect of nano-SiO2 on chloride ion penetration resistance of lightweight aggregate concrete using recycled EPS. Constr. Build. Mater. 224, 779–787 (2019).
Islam, M. M. U., Li, J., Roychand, R., Saberian, M. & Chen, F. A comprehensive review on the application of renewable waste tire rubbers and fibers in sustainable concrete. J. Clean. Prod. https://doi.org/10.1016/j.jclepro.2022.133998 (2022). (PMID: 10.1016/j.jclepro.2022.133998)
Hemn, U., Lavan, J., Mahmood a, Muhammad, A., Muhammad a, Rabar, H. & Ahmed, S. Ahmed a,b,*,.Faraj c, Shaker M.A. Qaidi d, Nadhim Hamah Sor e, Mohammed a, Azad A. Mohammed a Geopolymer concrete as a cleaner construction material: An overview on materials and structural performances. Clean. Mater. 5, 100111 (2022).
Islam, M. M. U., Li, J., Roychand, R. & Saberian, M. Investigation of durability properties for structural lightweight concrete with discarded vehicle tire rubbers: a study for the complete replacement of conventional coarse aggregates. Constr. Build. Mater. 369, 130634. https://doi.org/10.1016/j.jclepro.2022.133998 (2023). (PMID: 10.1016/j.jclepro.2022.133998)
ASTM C150. Standard Specification for Portland Cement. (ASTM, ASTM International, 2022).
ASTM C511. Standard Specification for Mixing Rooms, Moist Cabinets, Moist Rooms, and Water Storage Tanks Used in the Testing of Hydraulic Cements and Concretes.. (ASTM, ASTM International, 2021).
ASTM C567. Standard Test Method for Determining Density of Structural Lightweight Concrete1. (ASTM, 2014).
ASTM C39. Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens1. (ASTM, ASTM International, 2001).
ASTM C964. Standard Test Method for Splitting Tensile Strength of Cylindrical Concrete Specimens1. , (ASTM, ASTM International, 2011).
ASTM C87. Standard Test Method for Flexural Strength of Concrete (Using Simple Beam with Third-Point Loading. (ASTM, ASTM International, 2015).

Keywords: Circular economy; Compressive strength; Expanded polystyrene (EPS); Flexural strength; Lightweight concrete; Nano-silica; Non-structural applications; Sustainability; Water penetration

Date Created: 20241104 Latest Revision: 20241107

20241107

PMC11535071

10.1038/s41598-024-77029-x

39496681