Posted on 03/23/2011 7:59:13 AM PDT by SeekAndFind
Beat me by > this < much! LOL
It has less to do with spirit and more to do with government laws and regulations. Impact statements, building permits, zoning, work laws, etc. represent a serious obstacle to getting things done quickly.
Wow! That is stunning.
Concrete reinforced with Basalt solves the problems with steel rebar corroding, expanding and "exploding" (spalling) the concrete away.
Basalt reinforcement is very similar to fiberglas, but is made from lava rock rather than sand.
Take a look!
"http://www.youtube.com/watch?v=XrOiENCF0XQ"
You’d never know that from the realm of archery. Since around 05 people have been using those HighCountry arrows which are light to the point of non existence with bows ranging up to 90 lbs and the only problems most people have seen is glue failing to hold inserts together. In the case of a large building you’d be talking about prefabbing segments of floors and lifting them into place with helicopters or zeppelins. It would be much stronger than steel and many times lighter, there would be nothing in the picture to fail.
And still blaming and complaining about it.
When carbon fiber bikes fail, they fail catastrophically. and it does happen more than one would think.
I used to feel the same way about carbon fiber as you do, though my feelings have changed after seeing such failures.
Not particularly surprising.
We’ve had similar projects here in California.
Its all a question of need. Nothing about that project sets any kind of record for civil construction.
Already posted...
=8-)
Carbon fiber is a combination of short strands held together in a plastic resin. The use of this technology for archery is great, since the engineering behind this is based on “compression” exerted over a longitudinal axis. The result is better penetration performance for overall mass.
Construction reinforcement materials work on a completely different scale of physics. Steel is the best material for reinforcing Concrete because it can be extruded as a seamless component, which is crucial to span and load bearing structures.
Modern methods of construction now eliminate Electrolysis by preventing an electrical ground in the steel reinforcement structure, which in turn eliminates internal corrosion. Steel reinforcement bar also is plastic coated which is the biggest corrosion deterrent due to electrolysis.
Using Carbon fiber on a massive scale for bridges and buildings simply would not work very well from a physical standpoint alone. It would also be very difficult to produce enough Petroleum based plastic resin to meet the demand of such a broad application as infrastructure.
When steel rebar corrodes, it is almost always because the water used for the mix was out of spec, usually due to salt, but also frequently due to low Ph, such as sulphur springs.
Let’s see recall something about a steel bridge, Mississippi River and an interstate highway.
I agree with you.
It used to be that immigrants assimilated their culture into American culture. Sadly, that rarely happens anymore.
“And we’re still rebuilding New Orleans after Katrina?”
Yep. That’s because Barack Obama doesn’t like black people.
It's still going to be before the electrical transmission tower with the road sign near the base.
There is no indication of damage on the reconstructed road.
The before picture. Look at the color of the leaves...
Well then also note the color of the sky and the different distance of the power pole in the background. The time of day both were taken can also differ.
Wow, you’re sharp. And further inspection of the first picture, the foliage would indicate it being fall. Leaves are browned out, plus they are still on the trees. It isn’t fall in Japan in March is it?....
Might be from a previous earthquake. They had a good one in 2007. That one happened in July.
Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.