Method and apparatus for measuring properties of concrete

G - Physics – 01 – N

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G01N 22/00 (2006.01) G01N 27/02 (2006.01) G01N 33/38 (2006.01)

Patent

CA 2557514

Methods and apparatus using time domain reflectometry to determine electrical properties of concrete for calculating physical and mechanical properties of the concrete that are indicative of concrete quality and durability. The dielectric constant of a concrete is determined to calculate the gravimetric water content of the concrete for use in finding the water-cement ration of the concrete. Electrical conductivity of curing concrete is determined to calculate compressive strength of the concrete for use in predicting strength development in the concrete.

La présente invention a trait à des procédés et un appareil utilisant la réflectométrie de domaine temporel pour la détermination des propriétés électriques du béton pour le calcul des propriétés physiques et mécaniques du béton qui sont indicatifs des la qualité et de la durabilité du béton. La constante diélectrique d'un béton est déterminée pour calculer la teneur en eau gravimétrique du béton servant à la recherche du rapport ciment/eau du béton. La conductivité électrique de séchage de béton est déterminée pour calculer la résistance à la compression du béton servant à la prédiction l'évolution de résistance dans le béton.

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