Asphalt crack filling tool - GIF

[Altair]

Asphalt crack filling tool.




Previously:

Solvent extraction of asphalt - GIF
Asphalt excavation machine - GIF
Leveling recycled asphalt on a road - GIF
Asphalt cold planer - GIF
Inside an asphalt plant dryer drum - photo

[Frank S]

I guess that is a lot faster than a trowel but it is like putting a band-aid on a cut that needs stitches
The patching material is just hiding the crack temporarily without being forced deep into the crack.
They have a machine that injects the patching compound into cracks in some cities. and the Highway departments use them but even those don't always prevent the same crack from reappearing.
when a road surface cracks there is an underlying problem that will never go away by patching.

[bob_3000]

Six months after the city crew did a similar concept here but much more extensive work the snow plows came along and scattered the rubber worms all over the road...and that was a crew that cut out the cracks with giant saws, cleaned out the cracks with compressed air, pre-treated the cracks with liquid adhesive prep before injecting hot crack sealer under pressure...what a waste of time and money.

[hemmjo]

Indeed, asphalt paving is really just a way to deflect water from the foundation of a road or parking lot. Crack sealing is in no way structural, it is just to delay the eventual replacement of the pavement.

Just this month in our county, they ground the whole surface of a 3 lane county road for 3 miles. Paved it, painted all the lines, etc. The next week, hung a tag on everyone's front door along that road, explaining they were going to "seal the road" as it is the "best use of your tax dollars". OH yes, the tag also cautioned that the "surface might be slippery" for a few days. Then they sprayed the entire surface with some kind of liquid polymer and covered it with sand of some sort. It was kind of pink. Now that the sand has been blown off the side of the road by traffic and a few rains, what is left is a very dirty looking road, the bright white and yellow lane markers are dingy and no longer reflective at night.

The road did need some work, the area has grown a lot and the sides of the road were breaking down from more and more truck traffic. BUT, 40 years ago, this was a tar and chip country road, two cars could pass IF both drivers were as close as possible to the side of the road. It saw more tractor traffic than cars. No way could two trucks pass without one of them being off the road a bit. Over the years they made the road a bit wider each time it was paved. So, now we have a busy 3 lane road on top of the foundation build for a tar and chip country road.

Oh yes, very wise use of our tax dollars. It will be interesting to see how much of our "Infrastructure" here in the USA gets rebuilt PROPERLY with the latest government program.

[Floradawg]

I hear you about the govt. infrastructure bill. Maybe they just said it was polymer. Maybe it was some toxic waste that they wanted to get rid of ;-)