This could be measured by viscoelasticity (a high elastic component indicates no breakdown of the polymer structure), but if the elastic component of the viscosity diminishes as stirring continues, the polymer structure is being deformed, and the recovery time of the polymer structure could be measured by stopping the stirring and measuring the viscosity periodically. But perhaps even mild stirring will cause the polymer structure to deform or break down.
On the one hand, whipping air into the honey will disturb the viscosity. The viscosity should then be a function of how long since it had been at a high temperature, and this function should also be influenced by the original ambient temperature viscosity (related to water content), since a lower original viscosity suggests that the original viscosity will be regained faster after heating if the molecules are not tied up so much.Īnd if the long-range polymer structure is applicable, then perhaps mechanical disruption is also a variable.
So I wonder if the fructose and glucose (in a concentrated solution: ~85% sugars, 15% H2O) form some metastable hydrogen-bonded polymers with a long-range structure that persists for a long time before sorting out to crystals. But the next day, the honey seemed considerably more viscous than I remembered, almost as viscous as it should be.And the next day, everything seemed quite normal, so I did not investigate further. I have noticed, in a qualitative way (having no viscometer at home), that when I take the jar of partially crystallized honey and heat it to get it all redissolved, and tilt the jar, it seems quite fluid, not only when hot, but also when it has cooled (I have thermometers at home, but didn't think it was worth measuring the temperature, till now!), and even an hour or so later. The reason is that the asphalt molecules are quickly frozen into some not completely stable configuration as they cool down, and will continue to deform and rearrange until they reach a final structure that then resists further deformation: i.e., has considerable rigidity and strength. (A few hours.) Then we are told to keep off it for a day or so and even then to avoid parking a car on it for a week or so, to prevent forming unsightly depressions that will catch water.
It is dropped and rolled to about 2 inch thickness, then rolled again to insure flatness and good compaction, and it rapidly cools down to ambient temperature.
#Viscosity of honey plus
The mass of asphalt (petroleum residue) plus stone is heated in a large mixer, quite hot, then loaded into a truck for delivery to some location for deposit onto a street. Well, consider asphalt, as in asphalt concrete.
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