METHOD OF ESTIMATING ADHESION OF FILLER TO MORTAR PART OF CONCRETE Russian patent published in 1998 - IPC

FIELD: manufacture of building materials. SUBSTANCE: when estimating adhesion value for stamp-standard system, lower part of which is made from filler and upper part from metal, lower part is immersed into mortar part of concrete being investigated. Stretching force is then provided in contact zone by imposing static rupture loading, and one determines its action time until stamp is detached using device serving to estimate mechanical durability of contact zone. Thereafter, using indirect characteristic of adhesion between filler and mortar part of concrete and taking into account relation between this characteristic and coefficient of concrete strength variation, one estimates above-defined adhesion. EFFECT: facilitated estimation procedure. 3 dwg