METHOD FOR EXPERIMENTAL DETERMINATION OF LONG-TERM STRENGTH GRADIENT OF LOADED AND CORRODING CONCRETE AND DEVICE FOR ITS REALISATION Russian patent published in 2013 - IPC G01N3/08 G01N17/00 

FIELD: construction.

SUBSTANCE: power and corrosive action is created in vertical position of a tested sample. Sample deformations are measured along all four sides by instruments arranged outside a liquid aggressive medium. The experimental sample is aligned with aligning ball supports, hinged-rack guides of movable cross beam plates and stop fixators of face position, and the experimental sample is loaded with double control of the force. The device comprises a frame of a powered package, a spring, a ring dynamometer, a prism, a ball hinge, a journal for load transfer and a distribution cross beam. Bands of the distributing cross beam are arranged in a set with a spring of ring type and boards of the ball hinge and hinged-rack guides. Journals for load transfer are equipped with fixators of prism position. The spring is equipped with indicators of a clock type. The powered package to the depth of the upper surface of the test prism is submerged into a reservoir with a solution of an aggressive liquid. Indicators to measure prism deformations are installed above the aggressive liquid surface on external rods.

EFFECT: invention provides for high accuracy of measurement with double control of a loading force.

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