Method for the determination of kinetics of structure formation

Details Method for the determination of kinetics of structure formation Method for the determination of kinetics of structure formation

1982-02-26

1985-06-18

Krawczewicz, Stanley T.

Electricity: measuring and testing

Conductor identification or location

Inaccessible

73 53, G01R 2702, G01N 1100

Patent

active

045243190

ABSTRACT:
A method for monitoring structural changes in a binder in contact with a solid object, while the binder is curing. Conductivity measuring pick-ups are placed in the binder mass and at the boundary between the binder and the solid object. A low amplitude AC voltage is applied to each pick-up at a low frequency, and the pick-up output signals are compared by a differential inductive bridge. The difference between the output signals is indicative of the extent of adhesion of the binder to the solid object. Preferably, only those components of the pick-up signals which are in phase with the applied AC voltage are employed for the comparison.

REFERENCES:
patent: 3243702 (1966-03-01), Schuck
patent: 4120166 (1978-10-01), Brooks
patent: 4178544 (1979-12-01), Hoffman
Rakhimov: "Investigation of Cohesion Forces between Cement Stone and Rocks"-Saigims-Issue 6-1972, Tashkent-USSR.

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