Jean-Michel Lacombe

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Novel sugar-based surfactants were synthesized starting from D-gluconolactone. Three different functional groups were used to link the sugar moiety and the hydrophobic part. The physico-chemical properties for the use as adjuvant for pesticidal formulations of one of these compounds were evaluated and compared.
In the the early 1980’s, an evolution in the grouting operations took place with the use of increasingly fluid grouts to facilitate the injection of the prestress ducts. During a gammagraphy campaign carried out on a box girder bridge under construction in 1994, anomalies were detected at the upper point of the ducts of the external prestressing tendons.(More)
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