A testing device for concrete autogenous volume deformation with strain gauges fixed conveniently

Abstract

The utility model provides a kind of concrete autogenous volume deformation's testing device convenient for strain gauge fixation, including a for accommodating concrete mixture container;Bottom gasket is laid in the bottom of container;And a strain gauge fixing assembly, strain gauge fixing assembly is used to fix strain gauge in the preset position in container;Strain gauge fixing assembly includes: a hard support, and its lower end cooperates with bottom gasket to realize bottom positioning, and its main part is used to bear strain gauge;And a top tensioning member, it is arranged in the upper opening of container across, and is connected with the upper end of hard support, to carry out suspension positioning to hard support.The utility model ensures that strain gauge can always keep the preset vertical posture and center position in the violent dynamic process of concrete pouring and vibrating, fundamentally eliminates the data deviation caused by strain gauge eccentric displacement, significantly improves the accuracy, repeatability and reliability of test result.

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