Evaluating the Effects of Two Modifiers on the Mechanical Properties of Sulfur Concrete Using a Novel, High-Capacity Lab-Scale Mixer for Sustainable Construction

Abstract

Sulfur concrete represents a promising sustainable alternative to traditional Portland cement due to its rapid setting time, superior chemical resistance, and recyclability. Nonetheless, inherent brittleness and susceptibility to long-term deterioration limit broader applications, necessitating effective modifiers to improve mechanical and durability performance. This study investigates the influence of incorporating high density polyethylene (HDPE) and linear low-density polyethylene (LLDPE) at dosages of 5, 10, 15, and 20 wt.% into sulfur concrete containing 30 wt.% sulfur. Comprehensive evaluations included mechanical testing (compressive, flexural, and tensile strength), non-destructive testing methods (ultrasonic pulse velocity and rebound hammer), accelerated corrosion assessments via impressed voltage technique, and microstructural analyses (SEM, FTIR, and XRD). Results revealed optimum mechanical performance at 5 wt.% polymer content, with LLDPE modification achieving maximum compressive, flexural, and tensile strengths of 25.24 MPa, 3.31 MPa, and 1.75 MPa, respectively, compared to the control’s 20.6 MPa, 2.75 MPa, and 1.21 MPa. Corrosion resistance significantly improved with polymer additions, notably at 20 wt.% LLDPE exhibiting the lowest current intensity (~0.03 A). SEM analysis confirmed enhanced matrix density with HDPE modification, whereas FTIR and XRD analyses indicated no chemical interactions, affirming physical blending. These findings highlight that carefully selected polymer modifications significantly enhance the mechanical integrity and durability of sulfur concrete for sustainable infrastructure applications.

Keywords

• Sulfur concrete
• lab-scale production
• sulfur concrete mixer
• polymer modifier
• compressive strength

References

1. R.M. Andrew, Global CO2 emissions from cement production, 1928-2018, Earth Syst Sci Data 11 (2019) 1675–1710. https://doi.org/10.5194/ESSD-11-1675-2019.
2. R. Fediuk, Y.H. Mugahed Amran, M.A. Mosaberpanah, A. Danish, M. El-Zeadani, S. V. Klyuev, N. Vatin, A critical review on the properties and applications of sulfur-based concrete, Materials 13 (2020). https://doi.org/10.3390/ma13214712.
3. A.-M.Onsy. Mohamed, M. El-Gamal, Sulfur concrete for the construction industry : a sustainable development approach, J. Ross Pub, 2010.
4. M. Dugarte, G. Martinez-Arguelles, J. Torres, Experimental evaluation of modified sulfur concrete for achieving sustainability in industry applications, Sustainability (Switzerland) 11 (2018). https://doi.org/10.3390/su11010070.
5. N. Amanova, K. Turaev, M.H. Shadhar, U. Tadjixodjayeva, Z. Jumaeva, E. Berdimurodov, I. Eliboev, A. Hosseini-Bandegharaei, Sulfur-based concrete: Modifications, advancements, and future prospects, Constr Build Mater 435 (2024) 136765. https://doi.org/10.1016/J.CONBUILDMAT.2024.136765.
6. S.A. Stel’makh, E.M. Shcherban’, A.N. Beskopylny, L.R. Mailyan, B. Meskhi, A.A. Shilov, A. Evtushenko, A. Chernil’nik, D. El’shaeva, M. Karalar, Y.O. Özkılıç, C. Aksoylu, Physical, Mechanical and Structural Characteristics of Sulfur Concrete with Bitumen Modified Sulfur and Fly Ash, Journal of Composites Science 7 (2023). https://doi.org/10.3390/jcs7090356.
7. J. Moon, P.D. Kalb, L. Milian, P.A. Northrup, Characterization of a sustainable sulfur polymer concrete using activated fillers, Cem Concr Compos 67 (2016) 20–29. https://doi.org/10.1016/J.CEMCONCOMP.2015.12.002.
8. S. Ghasemi, M.R. Nikudel, A. Zalooli, M. Khamehchiyan, A. Alizadeh, F. Yousefvand, A.M.R. Ghasemi, Durability Assessment of Sulfur Concrete and Portland Concrete in Laboratory Conditions and Marine Environments, Journal of Materials in Civil Engineering 34 (2022) 04022167. https://doi.org/10.1061/(ASCE)MT.1943-5533.0004320.

9. M.M. El Gamal, A.S. El-Dieb, A.M.O. Mohamed, K.M. El Sawy, Performance of modified sulfur concrete exposed to actual sewerage environment with variable temperature, humidity and gases, Journal of Building Engineering 11 (2017). https://doi.org/10.1016/j.jobe.2017.03.009.
10. B. Łaźniewska-Piekarczyk, Research on the Possibilities of Using Sulfur Concrete for Road Infrastructure Construction—Assessment Based on European Standards, Sustainability (Switzerland) 17 (2025). https://doi.org/10.3390/SU17083671.
11. O. Öztürk, A. Öner, Long-term Durability of Bitumen Modified Sulfur Polymer Concrete Under Freeze–Thaw Cycles, International Journal of Civil Engineering 2021 20:5 20 (2021) 529–543. https://doi.org/10.1007/S40999-021-00672-2.
12. M.A. Gulzar, A. Rahim, B. Ali, A.H. Khan, An investigation on recycling potential of sulfur concrete, Journal of Building Engineering 38 (2021). https://doi.org/10.1016/j.jobe.2021.102175.
13. J. Liu, J. Zhang, C. Yan, S. Liu, Z. Jiang, Bonding Performance of Sulfur-Based Polymers for Pavement Repair, Journal of Transportation Engineering, Part B: Pavements 149 (2023) 04023031. https://doi.org/10.1061/JPEODX.PVENG-1164;PAGEGROUP:STRING:PUBLICATION.
14. J. Liu, C. Yan, J. Li, J. Zhang, S. Liu, Investigation on the Mechanical Properties and Strengthening Mechanism of Solid-Waste–Sulfur-Based Cementitious Composites, Materials 2023, Vol. 16, Page 1203 16 (2023) 1203. https://doi.org/10.3390/MA16031203.
15. X. You, X. You, Research Progress of the Modification in Sulfur Concrete, Materials Sciences and Applications 12 (2021) 353–361. https://doi.org/10.4236/MSA.2021.127024.
16. M. Mann, B. Zhang, S. Tonkin, C. Gibson, Z. Jia, T. Hasell, J. Chalker, Process for coating surfaces with a copolymer made from sulfur and dicyclopentadiene, (2021). https://doi.org/10.33774/CHEMRXIV-2021-N91H4.
17. M. Porto, P. Caputo, V. Loise, S. Eskandarsefat, B. Teltayev, C.O. Rossi, Bitumen and bitumen modification: A review on latest advances, Applied Sciences (Switzerland) 9 (2019) 742. https://doi.org/10.3390/app9040742.
18. S. Abeysinghe, C. Gunasekara, C. Bandara, K. Nguyen, R. Dissanayake, P. Mendis, Engineering Performance of Concrete Incorporated with Recycled High-Density Polyethylene (HDPE)—A Systematic Review, Polymers 2021, Vol. 13, Page 1885 13 (2021) 1885. https://doi.org/10.3390/POLYM13111885.
19. T. Wani, S.A.Q. Pasha, S. Poddar, B.H. V, A Review on the use of High Density Polyethylene (HDPE) in Concrete Mixture, International Journal of Engineering Research & Technology 9 (2020). https://doi.org/10.17577/IJERTV9IS050569.
20. Y. Aocharoen, P. Chotickai, Compressive mechanical and durability properties of concrete with polyethylene terephthalate and high-density polyethylene aggregates, Clean Eng Technol 12 (2023) 100600. https://doi.org/10.1016/J.CLET.2023.100600.
21. M.H. Shahsavari, M.M. Karbala, S. Iranfar, V. Vandeginste, Martian and lunar sulfur concrete mechanical and chemical properties considering regolith ingredients and sublimation, Constr Build Mater 350 (2022) 128914. https://doi.org/10.1016/J.CONBUILDMAT.2022.128914.
22. ASTM C33/C33M ASTM International, Standard Specification for Concrete Aggregates, West Conshohocken, PA, 2018.
23. J. Liu, C. Yan, J. Zhang, S. Liu, P. Li, Experimental study and modeling analysis of strength properties of sulfur-based polymers of waste ceramic fine aggregates, Mater Chem Phys 301 (2023) 127614. https://doi.org/10.1016/J.MATCHEMPHYS.2023.127614.
24. B. Wang, J. Zhang, C. Yan, J. Li, P. Li, Mechanical Properties and Microstructure of Sulfur Polymer Composite Containing Basalt Fibers, KSCE Journal of Civil Engineering 26 (2022) 5199–5209. https://doi.org/10.1007/s12205-022-0006-8.
25. K.K. Jena, S.M. Alhassan, Melt processed elemental sulfur reinforced polyethylene composites, J. Appl. Polym. Sci (2015) 43060. https://doi.org/10.1002/app.43060.
26. R. Anyszka, D. Bielinski, M. Imiela, P. Szajerski, J. Pawlica, R. Walendziak, M. Sicinski, Sulfur Concrete – Promising Material for Space-Structures Building, in: in Proceedings of the European conference on spacecraft structures materials and environmental testing, Toulouse, France, 2016.
27. British Standards Institution, BS EN 12390-3:2009 – Testing hardened concrete – Part 3: Compressive strength of test specimens, London, UK, 2009.
28. British Standards Institution (BSI), BS EN 12390-6:2009 Testing hardened concrete — Part 6: Tensile splitting strength of test specimens, 2009.
29. ASTM C78/C78M-18 ASTM International, Standard Test Method for Flexural Strength of Concrete (Using Simple Beam with Third-Point Loading), West Conshohocken, PA, 2018.
30. British Standards Institution (BSI), BS EN 12504 2:2021 Testing concrete in structures – Part 2: Non destructive testing – Determination of rebound number, 2021.
31. ASTM C805/C805M 18 ASTM International, Standard Test Method for Rebound Number of Hardened Concrete, West Conshohocken, PA, 2018.
32. A. Ndagi, A.A. Umar, F. Hejazi, M.S. Jaafar, Non-destructive assessment of concrete deterioration by ultrasonic pulse velocity: A review, IOP Conf Ser Earth Environ Sci 357 (2019). https://doi.org/10.1088/1755-1315/357/1/012015.
33. N.R. Chandak, H.R. Kumavat, SonReb Method for Evaluation of Compressive Strength of Concrete, IOP Conf Ser Mater Sci Eng 810 (2020). https://doi.org/10.1088/1757-899X/810/1/012071.
34. ASTM G1 03 ASTM International, Standard Practice for Preparing, Cleaning, and Evaluating Corrosion Test Specimens, West Conshohocken, PA, 2003.
35. S.A. Stel’makh, E.M. Shcherban’, A.N. Beskopylny, L.R. Mailyan, A.A. Shilov, I. Razveeva, S. Oganesyan, A. Pogrebnyak, A. Chernil’nik, D. Elshaeva, Enhancing the Mechanical Properties of Sulfur-Modified Fly Ash/Metakaolin Geopolymers with Polypropylene Fibers, Polymers 2025, Vol. 17, Page 2119 17 (2025) 2119. https://doi.org/10.3390/POLYM17152119.