reply to post by paranormal78
There are two types of machine that you mentioned, one is called cold in place and the other hot in place. I don't watch television so I don't know
which you saw. Hot in place is not allowed in every state because of laws regarding emissions. Also both machines have a place; but, it is much more
complicated than I can quickly explain.
People within Transportation and Public Works have been trying for decades to get more money invested in repairing our infrastructure. Problem is that
politicians prefer to create more infrastructure and delay maintenance, it looks a lot better to cut the ribbon at the opening of a new bridge than to
repair the ones we have. There are many things that we can do to improve the roads and decrease the cost, the aggregate (rock) industry has fought
asphalt recycling for 3 decades and unfortunately most engineers are not excited about maintaining the roads (we don't need their direct involvement
to repave) as much as building more (that is their role). Because Engineers are responsible for most road programs, maintenance takes a back seat.
Don't know where you live but the truth is I could come to your area and cut your road costs by 40% without even trying and you know what, your area
wouldn't do the things that would cut costs. The industry is a monopoly and is guilty of fixing prices (fed cases prove this). Believe I am just
making this up or read the reports on how many companies control 3/4ths of all the aggregate (the answer is 4) and the number of independents is
shrinking and no new aggregate mines being opened.
I spoke to the head of a state DOT (I will not name the state or the person) he is an engineer and was involved with their testing lab and he asked me
about how you test recycled asphalt (by the way, I am not an engineer nor a material tester), I told him you tested the mix the same as any other mix,
it was still just rock and oil. Most asphalt is not tested for maintenance in the United States. That is about as shameful as it gets. Well, let me
say that the producers test it; but, the cities and counties don't, they rely on independent labs that are not really that independent, if they test
at all and few test for air voids (just assume it is a test worthy of doing and that is why it was created).
Just so you know, I don't any wiki page to tell me my industry. You want to know why our infrastructure is in need or repair, read up on the
Association of General Contractors. It is about money. I have had people in the industry try to tell me that you should never repave a road because
you will get "reflective cracking" (a bogus term meaning that if there are problems below they will reflect up and crack the new pavement. However,
the scientists and experts tell us that if we repave rather than reconstruct, we maintain the roads longer and at the most cost efficient manner. The
money is in reconstruction.
This industry allowed itself to be pimped out by politicians. They have been promoting "rubberized asphalt" as lasting twice as long and being
capable of being paved at half the thickness. It is an outright lie. What it does is double your cost for the asphalt. It recycles tires in the most
costly way possible. Their claims of life span are lies and have been discredited. By the way, if anyone in the industry thinks they want to discuss
this with me on this thread, get ready to have your head handed to you. At the same time the industry accepted rubberized asphalt, they fought true
asphalt recycling. It is the most recycled product, however it is not made into new asphalt often. The machine you discussed does not make a finished
product to mix design. If you think about it, asphalt mixes call for different types of rocks (for the sake of argument, 50% of 3/4 inch rock, 25% of
1/8th rock and the remainder sand - not a real mix, just numbers), if I use the machine you mentioned (hot or cold) it breaks up the asphalt thereby
changing the size of the rocks and not meeting the required mix design. The road is therefore capped with an inch or two of new asphalt. Great
technology; but, you cannot keep increasing the depth of the road or the crown (curve), eventually you have to bring it back down.
The real solution is quite simple. Firstly, the technology is out there and tested that allows for asphalt to be simply recycled at a 50% mix to
"virgin" (new) rock. Anyone can do that and cut their costs and how much asphalt goes into your landfill. Second, stop making rubberized asphalt.
Third, change the way you contract. Currently most places contract out paving, in order to do this 35% of the job cost is design and bid award. At
well over a million a mile, that is a lot of money. They need to go to annual unit award contracts. Finally, they should TEST THEIR DARN MATERIALS,
when they are produced and after they have been laid down. A 5% deviation from compaction can lose 70% of the value of the job. And no, you won't
find that information on the internet.
I have been called everything other than a decent human being for saying these things in the past. Still it is the honest truth and I am a frickin
expert at this stuff. If you want, read my profile and read where I posted on the FCC taking over public right of ways. Look at some of the idiot
responses I got and then look at the things others found proving that I spoke the truth and did know what I was talking about in this area. Then
consider the fact that we could cut the costs for maintaining the roads by 50% with little effort and pave twice as many roads a year and put people
back to work in construction. People worry about the darn politicians; but, allow this garbage to go on. Sorry to hijack your post, I do think I was
on point. Be well, I need to have a drink of wine.