FORFARANDE OCH ANORDNING FOR BESTEMNING AV STRUKTURBILDNINGSKINETIKEN OCH ADHESIONSEGENSKAPERNA HOS BINDEMEDEL

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...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	1)I L EBERLING, 5)V I KOVALENKO, 8)M Y TITOV, 4)A M YAKOVLEV, 2)L A TERESCHENKO, 3)N I NIKOLAEV, 7)R A TATEVOSIAN, 6)N K LIPATOV
Format:	Patent
Sprache:	swe
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PHYSICS TESTING
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Beschreibung
Zusammenfassung:	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.