Lol, you can't just dump a layer. Fines are important for compaction. The purpose of fines is to reduce settlement. Your top layer will experience fine transport over time and your entire surface layer will drop. The design life of pavement will be considerably less. I understand you want to encourage ground water recharge, so how about you pick strips in the car park in which vehicles are not to run on. Slope you asphalt to these points and utilize your technology there. A good area is between back to back parking, use the concrete parking berm to protect the strip from traffic. You can have several strips of these, encourage the ground water recharge and get the design life. Also one should take into consideration scheduled cleaning of the surface course. Overtime, fines will clog anything
I watched these videos, starting with a locally made video from Dubuque, Iowa. The house I'm buying is in the Green Alley area. That means the alley will eventually be reconstructed with the permeable system. I think the cost is necessary, and I just got a feeling that this is where its heading everywhere. If I owned a paving co, I'd get my money into this.
all looks great, I am just wondering, in the event of a motor vehicle accident or accidental spill of what ever oil, pest-o -side how do you stop it running through and off into the ground and eventually the drains, as it is now not possible to dam the run off at the drain grate, as most car parks generally have oil patches where cars park and they usually are easily seen, dose this waste oil stain the porous asphalt or just soak through to the sub-straight leaving no visibly trace?
But no one is now going around and cleaning the spots of oil. The oil is being rained on, and carrying into the waterways. At least porous asphalt slows its pace.
This actually makes it easier to clean and contain the spill. You hook a hose up to the outlet they installed, then flush the entire thing with lots of liquid until the outlet is coming out clean.
This is not new. I live in the Netherlands and the first with ZOAB (porous asphalt) test where done in 1972. And from 1980 and up it is used for all new highways. Nowadays 90% of all highway are porous asphalt in the Netherlands. It has also the benefit that it reduces tire noise.
Interesting. Thanks for helping me get a better understanding of this. Some folks are apparently very much against the material, citing a litany of claims, but it's use is recommended and indeed sometimes required by NJDEP for sites that create large amounts of impervious areas. Could you guys elaborate a bit on appropriate locations for the material as well as recommended maintenance activities to ensure full life expectancy? My understanding is that locations seeing light traffic and minimal turning movements are ideal (i.e. satellite parking lots) and that vacuum truck cleaning is preferred over just basic sweeping. Can you confirm? Thanks!
People keep bitching about oil spills getting into the water system. Did anyone notice the shut off valve from the rock bed to the drain pipe, they installed 1. So this is a better actually method in preventing spills from spreading into the water system.
Correct me if I am wrong, but isn't the whole point of permeable pavements asphalt or other to keep runoff out of the storm drains? To reduce runoff by infiltrating water rather than letting it pollute the watershed? This video appeared to just use it to hit the drain faster.
It has several purposes: No water on the road. (Aquaplaning, better visibility) More water can penetrate into the soil underneath. Thus less water in the drainage system. Less water at once into drainage, it stores it. Less noise from trucks and cars. Every highway in the Netherlands has a surface of ZOAB (Zeer Open Asfalt Beton) Very Open Asphalt Concrete.
Great invention. Shall we use in India in high flooded area's Can you please help us?? I'm 4th year civil engineering student Sir I need detail information of design of this roads , materials , and drainage layout For my 4th year project work for this topic Thank you...
Dear Gray & Son/ Maryland Paving, Inc.: Barranquilla, Colombia, and an endless problem with floods caused by rainfall (which has claimed now hundreds of lives and millions in property damage) is in *desperate* need of a material like this. Please, just check the videos on RU-vid to have an idea of the magnitude of the issue. Please, consider it.
Seems to me that this type of asphalt would last longer. Regular asphalt only lasts 15 to 20 years in part because of standing water. If this allows the water to move through and out, that process should allow the asphalt to dry faster and last longer.
Rubberized asphalt, at least here in Arizona wears out kind of weird. It seems to last quite a long time on freeways but won't last more than a couple of years on surface streets, especially where the roads have a lot of turning traffic like driveways and intersections.
Commissar0617 I Live in The Netherlands and have been driving on it for over 10 years. In winters you do see more wear and tear of the roads, mostly caused by trucks. Typically it is quickly repaired. It is completely worth it as the visibility on the highways is so much better.
never stop fighting, LMAO, moving water doesn't freeze. I live in Iowa and the Mississippi river freezes every year. When water freezes it will expand in every direction by 10 percent its liquid mass. It would depend on how porous this new asphalt is. But then again in the northern states where we live the ice will just build up and it will destroy this material. Guess that's why it isn't really being used. I would have to say in the southern states this would cause the storm sewers to overflow more quickly because the water seeps into the material at a rapid rate not allowing the sun to evaporate it as much as it would normally. I guess to be sure about this one would have to do a study on this material and I for one do not think its worth the effort!
Wrong!! Tested by the University of New Hampshire for exactly what you are talking about and it reduced the need for deicing agents by up to 75%. The water goes down into the rock bed and does not affect the pavement. It has been used at a park in Massachusetts since 1977. See this link: www.millermicro.com/porpave.html. Walden Pond State Reservation One good porous pavement installation was installed by the Commonwealth of Massachusetts at Walden Pond as a demonstration project in 1977. Twenty years later, a long time for one paving job on that busy parking lot, it still looks good and works well. Federal Highway and Waterway Administration link: www.fhwa.dot.gov/pavement/pub_details.cfm?id=948
@@lionelhuts875 oh, so even when applying this in, for example, a house' driveway, it's still connected to the sewer system. Thanks, that was a helpful info.
@@sausageman4086 as water flows through, some water molecules will stay on the surface inside, and when it freezes, they expand and potentially cause cracks
@@cks2020693 the water flows through the asphalt, in from the top out from the bottom. Any leftover molecules would be to few to cause serious damage to the pavement.
@Andy As long as the water has room to expand (it's porous), it shouldn't crack or damage anything seriously. Try putting water in a 20oz pop bottle, don't put a cap on it then freeze it and watch what happens.
As long as the water has room to expand (it's porous), it shouldn't crack or damage anything seriously. Try putting water in a 20oz pop bottle, don't put a cap on it then freeze it and watch what happens.
As long as the water has room to expand (it's porous), it shouldn't crack or damage anything seriously. Try putting water in a 20oz pop bottle, don't put a cap on it then freeze it and watch what happens.
Manolo Fernandez Had it for over 10 years. You should drive from Belgium to The Netherlands in heavy rain with a lot of Trucks. You go from very low visibility in Belgium to normal visibility when you cross the border. More visibility = less accidents in my book.
PERLI JESSI Well it gives more visibility, which leads to fewer accidents, which leads to fewer repairs required and hospital costs. Also less accidents means less traffic jams or you spend less time in traffic jams. Time is money, certainly for trucks on the road. The calculation should go a little deeper than the pure costs of this road surface but also on the value it could bring.
PERLI JESSI Well it gives more visibility, which leads to fewer accidents, which leads to fewer repairs required and hospital costs. Also less accidents means less traffic jams or you spend less time in traffic jams. Time is money, certainly for trucks on the road. The calculation should go a little deeper than the pure costs of this road surface but also on the value it could bring.
not feelin' it! expensive! will carry toxicities from vehicles or mismanagements into ground waters with NO CHANCE of intervening or hitting spills off at the pass through barrier attempts! Also poses infrastructure hardships. those layers would be harder to work around and would require MUCH MORE EFFORTS AND MONIES to install piping for utility/cablings or any other often future upgradings to infrastructure. I DONT THINK IT IS A WELL THOUGHT OUT PLAN/MEDIUM!
Those toxicities are going to the same place with or without this technology. It would be easier to install piping for utilities/cablings because the actual paved area is thinner and would be an easier patch. It's very well thought out.
So if want a large commercial lot your looking at spending more then buildings! So where does the earth you dug out go? Another cost! Me thinks this is BS
I'd prefer if my tax money gets spent on standard asphalt and catchbasins with normal drainage, because those can be maintained and repaired. From what I've seen porous pavement just gets clogged with silt and moss and also the free-thaw cycles just blow it out.
It is more expensive but worth it. It's been used here in the Netherlands for a long time. The quality of the roads/road surface is far superior to the US (safer too). Clogs do happen but regular street cleaning is effective.
Freeze thaw cycles are fine. It's a porous material. The reason freeze-thaw damages things like concrete and cement when they get cracks is because more water builds up in there than escape, so as it freezes it expands and breaks. Porous most of, if not all of the water drains out of the cement/concrete. What doesn't isn't substantial enough to build up enough pressure to cause breaks.
