Etude de la résistance, la porosité, et migration des ions chlorures des BAP à base de sable de concassage
| Autor: | Benyamina Smain, Siham Kamali-Bernard, Kenai Said, Menadi Belkacem |
|---|---|
| Přispěvatelé: | Laboratoire de Génie Civil et Génie Mécanique (LGCGM), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA), Ait Brahim L.Bahi L.Khachani N.Nounah A.Saadi M.Boukhari A.Aride J.Diouri A., Laboratoire de Génie Civil et Génie Mécanique ( LGCGM ), Université de Rennes 1 ( UR1 ), Université de Rennes ( UNIV-RENNES ) -Université de Rennes ( UNIV-RENNES ) -Institut National des Sciences Appliquées - Rennes ( INSA Rennes ) |
| Jazyk: | francouzština |
| Rok vydání: | 2017 |
| Předmět: |
[ SPI.MECA.GEME ] Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanical engineering [physics.class-ph]
Materials science 0211 other engineering and technologies 02 engineering and technology Chloride Ion Crushed sand 021105 building & construction Compressive strengths medicine [ SPI.GCIV ] Engineering Sciences [physics]/Civil Engineering Composite material Porosity Cement Superplasticizer 021001 nanoscience & nanotechnology Limestone SCC [SPI.MECA.GEME]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanical engineering [physics.class-ph] [SPI.GCIV]Engineering Sciences [physics]/Civil Engineering Compressive strength Migration of chloride ions lcsh:TA1-2040 Formwork Mortar 0210 nano-technology lcsh:Engineering (General). Civil engineering (General) medicine.drug |
| Zdroj: | MATEC web of conferences 2nd International Congress on Materials and Structural Stability, CMSS 2017 2nd International Congress on Materials and Structural Stability, CMSS 2017, Nov 2017, Rabat, Maroc. pp. 01093, ⟨10.1051/matecconf/201714901093⟩ MATEC Web of Conferences, Vol 149, p 01093 (2018) Ait Brahim L.Bahi L.Khachani N.Nounah A.Saadi M.Boukhari A.Aride J.Diouri A. 2nd International Congress on Materials and Structural Stability, CMSS 2017, Nov 2017, Rabat, Maroc. EDP Sciences, MATEC web of conferences, 149, pp. 01093, 2018, 2nd International Congress on Materials & Structural Stability (CMSS-2017) 〈10.1051/matecconf/201714901093〉 |
| DOI: | 10.1051/matecconf/201714901093⟩ |
| Popis: | International audience; Self-compacting concretes (SCC), are hyper-fluid concretes, placed without vibration and are considered as one of the most important innovations of the last decade in construction. SCCs offer many advantages, due to their exceptional characteristics of flow and filling of formwork. Their compositions require a large quantity of fines in order to limit bleeding and segregation. Hence, the use of crushed sand (SC), rich in limestone fines (CF) in the manufacture of self-placing concretes (SCC), can be considered as an alternative source of fillers. These sands reduce the cost of SCC by reducing the high demand for fillers on the one hand and on the other hand, obtaining SCC with good physical and mechanical properties. The main purpose of this paper is to examine the effect of different percentages (0, 5, 10, 15, and 20%) of (CF) in crushed sand on SCC performance. The evolution of the compressive strength, the porosity accessible to water and the migration coefficient of the chloride ions were evaluated. The Okamura method was used for the formulation of all SCC mixtures. Sand/mortar (S/M), water/cement (W / C) ratios and superplasticizer content were kept constant. The results show that (CF) reduce the compressive strength but contribute to the reduction of porosity and migration of chloride ions. © The Authors, published by EDP Sciences, 2018. |
| Databáze: | OpenAIRE |
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