The Influence of the Fineness of Mineral Additions on Strength and Drying Shrinkage of Self-Compacting Mortars

Abstract:

Self-compacting concretes are extremely fluid concretes that can be placed into formwork without vibration. They are characterized by the presence of mineral additions which influence considerably their behavior in fresh and hardened states. This paper reports the results of an experimental study on the influence of Ground Granulated Blast Furnace Slag (GGBFS) and natural pozzolana (NP) and the effect of their fineness on the compressive strength and shrinkage of self-compacting mortars. Each addition was ground to three finenesses 350, 420 and 500 m²/kg. The cement is substituted by 0%, 15% or 30% of GGBFS. The water to binder ratio was kept low at 0.40; cement content and superplasticizer were maintained constant for all mortars mixtures. The results show that the substitution of cement by mineral additions (slag and natural pozzolana) generates a reduction of the total shrinkage (at 28 days) and compressive strength of self-compacting mortars, whatever the fineness of the addition. The study also showed that the increase of the fineness of the natural pozzolana gives an increase in both drying shrinkage and compressive strength. However, the increase of the fineness of slag decreases slightly the shrinkage and the compressive strength of self-compacting mortars.

• Periodical: Key Engineering Materials (Volume 600)
• Pages: 367-374
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.600.367
• Online since: March 2014
• Authors: Belkacem Menadi, Said Kenai, Sihem Hammat, J. Khatib
• Keywords: Drying Shrinkage, Fineness, Natural Pozzolana, Self-Compacting Mortar, Slag, Strength, Workability

References

[1] PL. Domone, HW. Chai, Design and testing of SCC, Proceedings of an International RILEM Conference Production methods and workability of Concrete, Paisley, Scotland, June 3-05, 1996, E & FN Spon, London, 1996, p.223–236.

[2] M. Oucho, Applications of self-compacting concrete in Japan, Europe and United States, (2003) Transportation Research Board on the National academies, p.8, http: /www. fhwa. dot. gov/bridge/scc. htm.

[3] H. Okamura, M. Ouchi, Self-Compacting Concrete, Journal of Advanced Concrete Technology, 1 (2003) 5-15.

[4] U. Mucteba, Y. Kemalettin, I. Metin, The effect of mineral admixtures on mechanical properties, chloride ion permeability and impermeability of self-compacting concrete, Construction and Building Materials 27 (2012) 263–270.

DOI: 10.1016/j.conbuildmat.2011.07.049

[5] O. Boukendakdji, S. Kenai, E.H. Kadri, and F. Rouis,. Effect of slag on the rheology of fresh self-compacted concrete, Construction and Building Materials, 23 (2009) 2593–2598.

DOI: 10.1016/j.conbuildmat.2009.02.029

[6] E. Vejmelková, M. Keppert, S. Grzeszczyk, B. Skaliński, B. Černý, Properties of self-compacting concrete mixtures containing metakaolin and blast furnace slag. Construction and Building Materials, 25(2011) 1325–31.

DOI: 10.1016/j.conbuildmat.2010.09.012

[7] A.S.E. Belaidi, L. Azzouz, E. Kadri, S. Kenai, Effect of natural pozzolana and marble powder on the properties of self-compacting concrete; Construction and Building Materials, 31 (2012) 251–257.

DOI: 10.1016/j.conbuildmat.2011.12.109

[8] M. Oner, K. Erdog˘du, A. Günlü, Effect of components fineness on strength of blast furnace slag cement, Cement and Concrete Research, 33(2003) 463–9.

DOI: 10.1016/s0008-8846(02)00713-5

[9] B. Menadi, S. Kenai, O. Kouider Djelloul, Properties of fresh self compacting concrete containinig slag, 10th International Congress on advances in civil engineering, Middle East Technical University, Ankara, turkey, 17-19 October 2012, p.330.

DOI: 10.1557/s43580-023-00583-5

[10] EFNARC. (2005) Specification and guidelines for self-compacting concrete. <http: /www. efnarc. org>.

[11] NF P 18-406. Bétons-essais de compression. Paris: AFNOR; (1981).

[12] NFP 15-437, Méthodes d'essais du retrait, Paris: AFNOR; (1981).

[13] P.L.J. Domone, J. Jin, Properties of mortar for Self-Compacting Concrete, Proceedings of RILEM International Symposium on Self-Compacting Concrete, Stockholm, (1999), p.109–120.

[14] K. Ezziane, E.H. Kadri, A. Hallal, and R. Duval, Effect of mineral additives on the setting of blended cement by the maturity method, Materials and Structures, 43(2010), 394 - 401.

DOI: 10.1617/s11527-009-9498-7

[15] A. Colak, Characteristics of pastes from a Portland cement containing different amounts of natural pouzzolan, Cement and Concrete Research, 33 (2003) 585-593.

DOI: 10.1016/s0008-8846(02)01027-x

[16] Z. Li, Z. Ding, Property improvement of Portland cement by incorporating with metakaolin and slag, Cement and Concrete Research, 33 (2003) 579-584.

DOI: 10.1016/s0008-8846(02)01025-6

[17] M. Ghrici, S. Kenai, E. Meziane, Mechanical and durability properties of cement mortar with Algerian natural pozzolana, Material Science 41(2006) 6965–72.

DOI: 10.1007/s10853-006-0227-0