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Posted: Wed Oct 29, 2008 8:29 am
by GB_Groundworks
you should have tried "geeky" :p
Posted: Thu Oct 30, 2008 5:45 am
by seanandruby
must say it did come in handy for .....biscuit dunking in me tae! :laugh:
Posted: Fri Oct 31, 2008 9:46 am
by astro
an explaination is here:
http://www.physlink.com/education/askexperts/ae196.cfm
There is a point though where wet sand would be lighter, just need to define how much water is in there, obvious really as water is lighter than sand. So when you hear things like this that at first seem to be outrageous, you just need to step back and have a good think about it!
Posted: Fri Oct 31, 2008 4:23 pm
by dig dug dan
thanks
it confirms my thoughts. Wet sand is heavier.
nuff said
Posted: Fri Oct 31, 2008 6:05 pm
by Pablo
Astro for that to work you have to assume that the water is a solid and will displace the sand but last time I got a soaking from the stuff it was still a liquid therefore no sand is displaced and the water fills the gaps between the grains and makes it heavier the fella who wrote the article even says that at the end which begs the question why did he bother writing it if he disproved himself at the end. You could say he was being hypothetical a bit like me saying if I were 12ft tall then I would have an 18 inch p~nis I'm not and unfortunately I don't. Nuff said :p
Posted: Fri Oct 31, 2008 7:09 pm
by seanandruby
i was benching a manhole today and i mixed water to the already damp grano, sand and cement. now when i use a mix with the right amount of water the benching stays where i put it. but the wet mix wants to bulge and sag. proof therefore that wet is heavier than dry, or moist.....i think ???
Posted: Fri Oct 31, 2008 7:57 pm
by Tony McC
Not nesser celery.
The increased amount of slump resulting from additional water is due to fluidity rather than mass. A wetter mix has more liquid per unit volume than a dryer mix. The definition of a fluid is "a material that flows", so liquids and gases are fluids. You have more liquid in a wet mix, therefore it is more fluid, therefore it slumps further.
Did you know that glass is a fluid?
Posted: Sun Nov 02, 2008 2:19 am
by Suggers
You're all mad.
Posted: Sun Nov 02, 2008 6:57 am
by Dave_L
This is a great pyhsics lesson!
Posted: Sun Nov 02, 2008 7:22 am
by seanandruby
I keep six honest serving-men [They taught me all I knew];Their names are What and Why and When And How and Where and Who
???