UTILIZING CRUSHED LIMESTONE FINE WASTES IN ALGERIA AS FILLERS IN CEMENT

المؤلفون

  • Z GUEMMADI Université Constantine1
  • H HOUARI Université Constantine1

الكلمات المفتاحية:

Limestone fillers، Cement paste، Fineness، Mechanical resistance، Carboaluminate.

الملخص

In Algeria, more than thousand of aggregate crushing station produces annually about 68 million tons of aggregates, essentially of calcareous nature. Unfortunately, more than 20% of manufactured sands are
unsuitable to be used as construction sands because of their high fines content that largely exceed the current standard that limit the maximum value to 12%. Similarly, the limestone fillers, which also result from the limestone rocks crushing process, are regarded as inadequate residues and in consequence unexploited [1]. To improve the situation, it is important to improve all the aggregates and sands with a high filler content and more particularly sands and the limestone fillers itself. This has a favourable effect not only on the economy of the country but also the environment.
This paper shows the influence of the characteristics of Algerian limestone fine (proportioning, fineness) on the physical properties, the mechanical performance and durability of cements pastes made with various ratios of water to binder. Obtained results show that the replacement of part of cement by these limestone fillers can improve significantly the mechanical resistance, the workability. This study also shows that the limestone fillers not only have a physical effect but also an improved chemical activity by
producing new hydrated compounds such as the carboaluminates [2]

السير الشخصية للمؤلفين

Z GUEMMADI، Université Constantine1

Laboratoire de Matériaux et Durabilité des Constructions

H HOUARI، Université Constantine1

Laboratoire de Matériaux et Durabilité des Constructions

المراجع

Guemmadi Z., Houari H. " Influence de l’ajout de fines calcaires sur les performance des bétons dans l’Est Algérien". Annales du Bâtiment et des Travaux Publics. N° 6. Pp 23-32. 2002.

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Guemmadi Z., Toumi B. Houari H.: "Behavior of limestone sand based concrete with variable filler content "International Congress Challenges of concrete Construction, pp12, Dundee, Scotland, 5 – 11 September 2002.

Guemmadi Z., Toumi B. Houari H: "The Optimal Filler Content Giving the Best Performances of Concrete" Session 1 – First International Conference $ Fourth Exhibition, pp 32- 41, September 29- October 1, Kuwait, 2003.

Tsivilis S, Chaniotakis E, Kakali G, Batis G. "Portland limestone cements: An analysis of the properties of limestone cements and concrete". Journal of Cement and Concrete Composite N° 24 (2002) 371–8.

Ramachandran VS. "Thermal analysis of cement components hydrated in the presence of calcium carbonate". Thermochim Acta 1988;127:385–94.

CIACH T .D., GILOTT J .E., SWENSON E. G., SEREDA P. J. : "Microstructure of calcium silicate hydrates". Journal of Cement and Concrete Research N°1, pp13 – 25. Edition Pergamon, 1971.

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التنزيلات

منشور

2004-06-29

كيفية الاقتباس

GUEMMADI, Z., & HOUARI, H. (2004). UTILIZING CRUSHED LIMESTONE FINE WASTES IN ALGERIA AS FILLERS IN CEMENT. مجلة علوم و تكنولوجيا ب، علوم الهندسة, (29), 17–22. استرجع في من https://revue.umc.edu.dz/b/article/view/252

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