A master truck driver would drive at a low speed with the tailgate open and tray upright and evenly distribute the rocks like a boss with less need for a grader.
Thanks for showing us how NOT to grade out a new roadway. The trucks should be dumped closer to the roadway. So that the piles slightly overlap the previous work. Then the road grader should work on the high side. Using the already finished roadway as a referance. Use the angle of the blade to catch more, push, or slide off the work material as needed. Once you establish your grade. It's easy to maintain it. Work the grader up and then down the road. Cutting and grading enough so you don't have material bleed from the end of your blade. Doing it this way, you will not only achieve the proper grade on first cut. But the surface will be compacted and the tires of the grader will not sink into the material. You could also have a vibratory roller working next to you. Saving a lot of time. IUOE Local 15 (38 years) Retired.
I guess they also have a grudge against using a spreader box or trucks setting chains on the tailgates. Since that would also lay more even and wouldn't loose your grade as easy as they way they are doing
Yep. Probably needs to have piles like that since the drivers can't/won't spread. Good drivers could spread their gravel, the blade would only have to touch the material once.
Also, they are not using a major feature of the grader. Articulation allows the front wheels to remain on the adjacent finished grade and the tandems pushing behind the piles. Matching finished grade in one pass. Less wear and tear on the machine and less fuel. The operator doesn’t know how to articulate even for a turnaround. He needs a lesson! This is a terrible example of grading best practice.
Motor Graders are a good leveling and grading tool. There is, however, a variation on the asphalt layer that can do this job far more efficiently. It can lay a roadbed foundation or sub-roadbed filler very quickly and more efficiently than even a Motor Grader can. They have been using such a machine for laying highways in my local area for the past several years. Very efficient, and grades the material to be placed as it travels, requires many more dump trucks than seen in this video in order to operate smoothly.
Probably a stupid question, but why not have the truck drivers pull up while dumping so you don't have the huge piles to chop down before you can start smoothing it out?
Probably because it would not leave enough material. If the dump were spaced out your suggestion would make a lot of sens but the dump are very close because they want a thick layer.
My first reaction was that this operation should have been using a spreader box not a motor grader to reduce segregation of the ABC. But by the end of the video I was impressed at how well the base course looked. The only issue I have now is the loose thickness of the layer (well over 5") and whether they will be able to obtain optimum moisture and density on the roadway, critical for a durable substrate on which the pavement will be constructed.
Likely not. Base course should have been built up in 50mm layers and rolled and watered throughout. I'd hate to see what the density test comes out at.
This was done 2 months, 29 days, 23 hours, and 40 minutes faster than the same job would have taken in Michigan. It's good to not have government and unions slowing down progress!
I could list quite a few problems with how this is being done. As a 25 year veteran in construction, there are a LOT of things being done wrong. Doing an import job like this where you're hauling in whatever materials to be spread out, you do it as if you're painting the road. The trucks need to spread the loads out better. Meaning when they dump, they should pull forward slowly and not allow it to be in such a big pile. Where I'm from, you should be using belly dumps for this. The truck pulls alongside the existing windrow and begins his dump, then the next truck ties on, and so on. All the blade has to do is carry the windrow across at the same grade until the ribbon is completed. Then do the same thing until you get completely across the fill. This is definitely a lesson in how NOT to build a road.
To all the safety and “here’s what’s wrong with how they’re doing this job” comments. This is how a big part of the world gets by, for better or for worse, but overall the job gets done. So take a deep breath and appreciate the fact that in developing countries, they’re learning and getting it done.
If the guys tipping were better at their job, the grader wouldn't have to do so much work. I was a truck driver on road construction and we would have got our arse kicked for tipping like that.
I always here comments about a blade operator being Really Good! Folks who never operated one just don't realize that they a built for the work! So being impressed so easily, is like being amazed that a Horse.. can Run!
Maybe if the truck drivers tail gating the gravel instead of dumping it all at once you will get the road surfaced sooner and less grading from the grader
Skill?? No.. more like lack of equipment.. just getting it done. Anyone that has ran a grader knows you can't raise the blade as fast as the machine will fall. So that means it's the wrong tool for the job. A scraper would make short work of that. That's the tool that should be used.
with that many drones in the air you need a air traffic control tower, and now I understand why there are so many construction videos in my feed, everyone is trying to get on that band wagon :(
I love how the cars and trucks and motorcycles all keep on going with the grader working and there is no flag personS around! Talk about managed chaos! I wish north america construction / traffic flow was like this! (yes, need to drive slow around construction sites!)
Sure looks like he’s got it on float! That mouldboard moves up and down pretty fast between the piles. He can drive it, but not so good at operating it lol
I wonder if they even have safety concerns or meetings... Traffic control.. Don't need it Safety clothes for workers.. Nah they can just dodge the traffic.
Not very efficient at all. A blade is a geometrical marvel, learn how to use it’s angles rather than straight blading 3 times in your same wheel tracks.
It's not very efficient having the lorries tip the stones in large piles close together, it would be better to be moving forward when tipping so as to spread the load as you will see done in other videos on here.
In NJ USA the entire road would have been closed while traffic is a nightmare I kinda like this way but the drivers here would be cutting everyone off lol
I was initially confused by the traffic driving through the work site. I'm not sure where this is I just know I wouldn't go anywhere near this road work.
World class safety features here, dude with hammer in thongs, homeboys on their airborne toys and Gangsta Grader fella cutting gravel piles to pancakes. Bet the site manager is taking care of ''business' up the road somewhere?
People driving on an active construction site with no one directing traffic, 5 low flying drones, no PPE, equipment used partially correctly, must be India.
I also find it odd that they have to have a labourer release the dogs to open the tailgates on the trucks when in NA all the trucks have air operated releases from the drivers cab.
