P
P. Le Bescop
Researcher at French Alternative Energies and Atomic Energy Commission
Publications - 8
Citations - 318
P. Le Bescop is an academic researcher from French Alternative Energies and Atomic Energy Commission. The author has contributed to research in topics: Phase (matter) & Cement. The author has an hindex of 7, co-authored 8 publications receiving 273 citations.
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Design and characterization of low-heat and low-alkalinity cements
TL;DR: In this paper, a low-alkalinity and low-heat cements which would be compatible with an underground waste repository environment were formulated and analyzed using X-ray diffraction, TGA-DTA, calorimetry, pore solution extraction and microscopy.
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The U phase formation in cement-based systems containing high amounts of Na2SO4
TL;DR: In this article, simulated low-level wastes containing high amounts of Na 2 SO 4 (10 ≈ 15%) were examined with respect to the mineralogy of the solid phases, chemical composition of the interstitial aqueous phase and immersion behaviour in water.
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Expansion mechanism associated with the secondary formation of the U phase in cement-based systems containing high amounts of Na2SO4
TL;DR: In this paper, the influence of the U phase formation on the expansion of the C3A+C3S+Na2SO4 system was studied and it was shown that U phase is formed by an external water supply and this reaction process results in a large expansion.
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Synthesis of the U phase (4CaO . 0.9Al2O3 . 1.1SO3 . 0.5Na2O . 16H2O)
TL;DR: In this article, it was shown that the reaction between Na2SO4(0.41~0.82 mole metallic aluminum fine powder in 1 liter 1N NaOH solution may be considered as the most efficient way for synthesizing the U phase.
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Physico-chemical transformations of sulphated compounds during the leaching of highly sulphated cemented wastes
TL;DR: In this article, during the leaching of simulated highly sulphated OPC/BFS cements, cured at room temperature and containing U-phase, sodium sulphate, and ettringite, physico-chemical transformations have been pointed out (transformation of U -phase into ettricite).