METHOD OF DETERMINATION OF FIRE RESISTANCE OF BRICK COLUMNS WITH MORTAR HOLDER Russian patent published in 2015 - IPC G01N33/38 

FIELD: construction.

SUBSTANCE: brick columns are tested without destruction by a complex of single parameters of quality, estimating the value of the actual degree of fire resistance by the loss of bearing capacity. For this purpose the geometrical sizes of brick columns with mortar holder, conditions of heating of columns, the value of the longitudinal bend coefficient, the parameters of thermal diffusion of material of brick columns and mortar of the holder, percentage of indirect reinforcing of brickwork; the value of standard loads during fire resistance test and level of tension of hazardous cross sections of brick walls. A degree of fire resistance of brick columns with a mortar holder is determined by the evidence of losses of bearing capacity.

EFFECT: improvement of accuracy, reliability and veracity, simplification and acceleration of tests.

7 cl, 2 dwg, 1 tbl, 2 ex