Concrete is strong because the lye in it etches its way into the particulate granules, and bonds them together during the cure process.
SOME water remains, but I never learned it as being the main mechanism for the medium's strength.
I wonder how Moon mud-bricks would test out. :-)
yep a troll.
make me troll
a friend of the troll ?
make me troll
You already are one, dumbfuck.
It's a goddamned shame that mommy doesn't bust your ass for being such a stupid little fucktard.
Come back when your IQ rises above ten, you retarded twit.
Right. The little 11 year old AUSSIE RETARD that cannot spell a single goddamned word... EVEN the EASY ones... thinks that I have no idea.
You're a brainless twit, ZACKTARD!
Sorry, pussy boy, but you do not get to tell me what I do and do not get to do.
Because I'd rather stay here and point out the fact that you are an immature, adolescent little bastard, just so I can make the entire group laugh at how utterly stupid you are.
Bwuahahahahahahahhaa!
That is a good block, not too hard to get it up to 500 HP. Getting it past 600 is challenging though. Friends did this, not me.
you
McCarthy did nothing of the kind. You're still buying the pinko's old line, pointy end first.
Most of the water added to concrete when it is mixed is supposed to stay there. That is nearly all "water of hydration" but I would not bet my life that concrete completely lacks salt-ridden or alkali-ridden liquid water (quite conductive) until it is toasted by a fire until it crumbles to powder. Even then, I would not consider it a high voltage insulator if it spent a few hours or more where the relative humidity percentage needs more than one hand to count on fingers.
- Don Klipstein ( snipped-for-privacy@misty.com)
Isn't that the preferred end ?:-)
...Jim Thompson
-- | James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at
American English usage has many irregularly declined nouns For example, Democrat is the pluperfect form of ignoramus
whats the matter troll cant take the heat. im not going any ware troll. go back under the bridge you came from. you wont win troll.
no ones perfect troll not even you. there are a lot of peaple around the world that cant spell-hair-or speak and see, se your not just insalting me you are insalting them others as well.
and these peaple are of any age 11 or 111 it doesint matter and you do not know howe old i am, mabe your a little fat 4 eyed computer geek who eats pizzas every day and nothig better to do than look out for faults in peaple that makes you a troll.
"YOU WONT WIN"
ive had werse than you, you cant insalt me, it wont work. your boreing me troll
You do a fine job of insulting yourself, your mother, and your country, boy. I originally laughed, but it is actually pretty sad.
MAYBE one day that fact will dawn on you. Highly unlikely, however.
not good enough
its not working, comon more more more, make lough troll. youre dad must be shreck. and you still dont know how old i am"BOY" no "TROLL"
just remember you started it.
I know how dead you are in my "in box".
Have fun jacking off your brain, you unintelligent, top posting piece of Usenet s*it. I am quite sure you have already made everyone else's filters. Bye little boy.
Thanks all for the input on concrete electrical resistance. I've noticed some TV repair fella's (yes long ago), would put a piece of plywood on the floor where they do service. Anyone ever heard of concrete being struck and damaged by lightning?...I haven't. Ken
...by the fisher, for the fish.
In , Ken S. Tucker wrote in part:
It appears to me that most concrete is sidewalks, basement floors, building foundations and the like. There are usually objects sprouting up from those or nearby that will take the lightning hits.
I am aware that a few buildings are largely concrete, but there is usually something other than concrete on the top - and then often a lightning rod, sometimes an antenna or a beacon light that would have proper lightning protection.
Should a concrete object get hit by lightning, I would expect the damage to be localized to where the bolt contacted the concrete. The current would spread out from there throughout the concrete and megajoules can only heat up a little bit of concrete to damaging temperatures. Maybe a lightning strike onto concrete could lead to a "hot channel" akin to "forward bias second breakdown" of a bipolar transistor where localized heating increases conductivity and causes a positive feedback for localized heating. However, I would expect even that severe an event to merely crack such an ill-fated concrete object. Any that cannot tolerate this may be better off with lightning rods.
Lightning damage tends to be pretty much electronic equipment/device damage or fires. A distant second place is damage from trees being exploded by lightning taking an internal "hot channel" route within the tree. Generally such an ill-fated tree does not explode like a bomb - the explosion tends to be merely breaking the tree and then big parts of the tree fall and that is what is most damaging.
Often lightning hitting a tree ends up making and following a "hot channel" just under the bark, and some damage can be done by pieces of bark becoming shrapnel. More often still, lightning going down a tree along a "hot channel" does so along the bark surface and merely scars the bark. Then again, worse things done by lightning hitting trees are probably more common in some semi-arid areas that get those thunderstorms that don't put a lot of rain onto the ground, shoot out lightning before producing rain that makes it to the ground, or not rain onto much of where they hit with lightning, etc. This can happen anywhere that gets thunderstorms, but there are specific areas that are prime problem spots for "dry lightning".
- Don Klipstein ( snipped-for-privacy@misty.com)
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