Document Type : Research Paper


Civil Engineering Dept., University of Technology- Iraq, Alsina’a street, 10066 Baghdad, Iraq.


The experimental program evaluated the fresh properties of self-consolidating lightweight concretes (SCLC) produced from expired cement EC cold-bonded lightweight coarse aggregates (ALA) with silica fume (SF) and fly ash (FA). Twelve mixtures of SCLC were prepared, the binder in the control mix was just Portland cement (PC), whereas other mixes included binary and ternary of (PC), 20% of (FA), and/or (10%) of (SF) with (0%, 50%, and 100%) as partial replacement of (ALA) with coarse natural aggregates. Fresh features of (SCLC) were evaluated by measuring their slump flow diameter, T500 slump flow time, V-funnel flow time L-box height ratio, and column segregation, (SCLC) with and without mineral admixtures have their fresh characteristics compared. It was found that increasing the quantity of ALA replacement resulted in a reduction in the amount of superplasticizer required to obtain a constant slump flow diameter of SCLC. Combining (SF) and/or (FA) lowered both the V-funnel flow time and the slump flow time, whereas the L-box height ratio increased from (0.82) to (0.86) with the addition of fly ash for reference mix. With the combined action of mineral admixtures, the percentage of column segregation decreases by (16.7%) compared with the reference mix. The maximum slump flow was (792) mm with a mix of (M6).

Graphical Abstract


  • EC can be recycled in ALA.
  • Reducing the cost of SCLC with ALA.
  • Improved the fresh properties of SCLC with SF, FA and ALA.


Main Subjects

  1. Benhelal, G. Zahedi, E. Shamsaei, and A. Bahadori, Global strategies and potentials to curb CO2 emissions in cement industry, J. Clean. Prod., 51 (2013) 142–161.

  2. X. Peng, L. Huang, Y. B. Zhao, P. Chen, L. Zeng, and W. zheng, Modeling of Carbon Dioxide Measurement on Cement Plants, Pro. Environ. Sci. Eng., 610 (2013) 2120–2128.

  3. Economy, A. Meddah, C. M. Aziz, and M. Deghfel, The Efficiency of Recycling Expired Cement Waste in Cement Manufacturing : a Sustainable Construction Material, 2022.

  4. Aslam, P. Shafigh, M. Z. Jumaat, and M. Lachemi, 'Benefits of using blended waste coarse lightweight aggregates in structural lightweight aggregate concrete, J. Clean. Prod., 119 (2016) 108–117.

  5. M. Nor et al., A review on the manufacturing of lightweight aggregates using industrial by-product, in MATEC Web Conf., 78 (2016) 1067.

  6. A. Abera and N. Kumar,A Review on the Production of Lightweight Aggregates Using Industrial Bi-Product and Wastes from Different Sources, 6 (2017) 4-7.

  7. Perumal, M. Ganesh, and A. S. Santhi, Experimental study on Cold Bonded Fly Ash Aggregates, Int. J. Comput. Civ. Struct. Eng., 2 (2011) 507–515.

  8. V. S. Reddy, M. C. Nataraja, and K. Sindhu, Performance of Light Weight Concrete using Fly Ash Pellets as Coarse Aggregate Replacement, Int. J. Eng. Res. Technol., 9 (2016) 95–104.

  9. U. Kockal and T. Ozturan, Strength and elastic properties of structural lightweight concretes, Mater. Des., 32 (2011) 2396–2403.

  10. Vijay, Use of fly ash aggregates in concrete and its applications in structures, Int. J. Re. Devel. Eng. Technol, 4 (2015) 37-46.

  11. Wu, Y. Zhang, J. Zheng, and Y. Ding, An experimental study on the workability of self-compacting lightweight concrete, Constr. Build. Mater., 23 (2009) 2087–2092.

  12. Tang and H. J. H. Brouwers, The durability and environmental properties of self-compacting concrete incorporating cold bonded lightweight aggregates produced from combined industrial solid wastes, Constr. Build. Mater., 167 (2018) 271–285.

  13. Tajra, M. Abd, S. Chung, and D. Stephan, Performance assessment of core-shell structured lightweight aggregate produced by cold bonding pelletization process, Constr. Build. Mater., 179 (2018) 220–231.

  14. Güneyisi, M. Gesoglu, O. A. Azez, and H. Ö. Öz, Effect of nano silica on the workability of self-compacting concretes having untreated and surface treated lightweight aggregates, Constr. Build. Mater., 115 (2016) 371–380.

  15. Güneyisi, M. Gesoglu, O. A. Azez, and H. Ö. Öz, Physico-mechanical properties of self-compacting concrete containing treated cold-bonded fly ash lightweight aggregates and SiO2 nano-particles, Constr. Build. Mater., 101 (2015) 1142–1153.

  16. EPG, ERMCO The European Guidelines for Self-Compacting Concrete, Eur. Guidel. Self Compact. Concr., (May), 2005.

  17. Gesoğlu, E. Güneyisi, S. F. Mahmood, H. Ö. Öz, and K. Mermerdaş, Recycling ground granulated blast furnace slag as cold bonded artificial aggregate partially used in self-compacting concrete, J. Hazard. Mater., 235–236 (2012) 352–358.

  18. Gesoğlu, E. Güneyisi, T. Özturan, H. Ö. Öz, and D. S. Asaad, Self-consolidating characteristics of concrete composites including rounded fine and coarse fly ash lightweight aggregates, Compos. Part B Eng., 60 (2014) 757–763.

  19. B. Topçu and T. Uygunoǧlu, Properties of autoclaved lightweight aggregate concrete, Build. Environ., 42 (2007) 4108–4116.

  20. S. Agwa, O. M. Omar, B. A. Tayeh, and B. A. Abdelsalam, Effects of using rice straw and cotton stalk ashes on the properties of lightweight self-compacting concrete, Constr. Build. Mater., 235 (2020) 117541.

  21. M. Falmata, A. Sulaiman, R. N. Mohamed, and A. U. Shettima, Mechanical properties of self-compacting high-performance concrete with fly ash and silica fume'', SN Appl. Sci., 2 (2020).

  22. Salehi and M. Mazloom, Opposite effects of ground granulated blast-furnace slag and silica fume on the fracture behavior of self-compacting lightweight concrete, Constr. Build. Mater., 222 (2019) 622–632.

  23. Güneyisi, M. Gesoğlu, and E. Booya, Fresh properties of self-compacting cold bonded fly ash lightweight aggregate concrete with different mineral admixtures, Mater. Struct. Constr., 45 (2012) 1849–1859.

  24. Y. Lo, P. W. C. Tang, H. Z. Cui, and A. Nadeem, Comparison of workability and mechanical properties of self-compacting lightweight concrete and normal self-compacting concrete, Mater. Res. Innov., 11 (2007) 45-50.

  25. Terzić, L. Pezo, V. Mitić, and Z. Radojević, Artificial fly ash based aggregates properties influence on lightweight concrete performances, Ceram. Int., 41 (2015) 2714–2726.

  26. Astm, Standard Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use, Annu. B. ASTM Stand., (C), (2010) 3–6.

  27. Https://, dcp.

  28. 1984 for Aggregates of Natural Resources used for Concrete and Construction. Iraqi Specifications No. (45), Aggregates test.

  29. Properties, D. Pale, O. D. Overdosing, C. Cemairin, and S. Cemairin, Cemairin F300 Cemairin F300.

  30. L. Hwang and V. A. Tran, A study of the properties of foamed lightweight aggregate for self-consolidating concrete, Constr. Build. Mater., 87 (2015) 78–85.

  31. Mohamad Ibrahim, K. N. Ismail, R. Che Amat, and M. Iqbal Mohamad Ghazali, Properties of cold-bonded lightweight artificial aggregate containing bottom ash with different curing regime, E3S Web Conf., 34 (2018)

  32. ASTM C330, Standard Specification for Lightweight Aggregates for Structural Concrete, ASTM Int., 552 (18), p. 4, 2009.

  33. ASTM:C29/C29M-09, Standard Test Method for Bulk Density (“ Unit Weight ”) and Voids in Aggregate, ASTM Int., i (c), pp. 1–5, 2009.

  34. ASTM C127, Standard Test Method for Density, Relative Density (Specific Gravity), and Absorption of Coarse Aggregate, Annu. B. ASTM Stand., pp. 1–5, 2004.

  35. Frankovič, V. B. Bosiljkov, and V. Ducman, Lightweight aggregates made from fly ash using the cold-bond process and their use in lightweight concrete, Mater. Tehnol., 51 (2017) 267–274.

  36. C. Test et al., Standard Specification for Lightweight Aggregates for Structural Concrete 1, pp. 1–4, 2011,

  37. Performance and S. Concrete, Sika ViscoCrete ® -3425, (12), pp. 4–5, 2015.

  38. C. C. Bate, Guide for structural lightweight aggregate concrete: report of ACI committee 213, Int. J. Cem. Compos. Light. Concr., 1 (1979) 5–6.

  39. Mermerdaş, S. İpek, Z. Algın, Ş. Ekmen, İ. Güneş, Combined effects of microsilica, steel fibre and artificial lightweight aggregate on the shrinkage and mechanical performance of high strength cementitious composite, Constr. Build. Mater., 262 (2020) 120048.