METHOD FOR EXPERIMENTAL DETERMINATION OF STATIC-DYNAMIC CHARACTERISTICS OF CONCRETE Russian patent published in 2019 - IPC G01N3/00 G01N33/38 

FIELD: construction.

SUBSTANCE: present invention relates to construction, particularly to experimental determination of parameters of static-dynamic deformation of concrete. During testing two experimental twin samples are used, loading of which is carried out in two stages without damping elements, therein, at first step, both specimens are loaded with quasi-static load to preset level. At second step, first sample is loaded to destruction by high-speed (impact) load, second – by quasi-static load, as at first stage of tests. During loading deformations increments and ultimate destructive load are recorded, and then by results of measurements of deformations of maximum static and dynamic loads diagrams of "stress – deformation" of concrete at static-dynamic for first sample and static load for second sample are plotted, after that, according to these diagrams dynamic module is determined depending on limiting time of dynamic loading and level of stress state, from which dynamic loading is performed, as well as dynamic strength of concrete and coefficient of increasing concrete dynamic strength.

EFFECT: determining dynamic modulus of concrete deformations depending on limiting time of dynamic loading and level of stress state from which dynamic loading is performed, as well as dynamic strength of concrete and coefficient of increasing concrete dynamic strength under various loading conditions.

1 cl, 2 dwg