Circular saw blade for asphalt.

[1991Syclone]

My wife decided that we needed to install an invisible dog fence at our new house. I told her where I thought would be easiest to install it based on the fact that we have about half an acre of Florida brush that hasn't been maintained in years.

She decided she wanted it installed in some of the harder parts of the yard to get to. I told her she was more than welcome to do so. After lots of scrapes, cuts, and bruises she thought it might be better to install it in the parts of the yard that were easy to access...

So instead of going all the way down the driveway, we are cutting across it half way. She wanted to tape the wire to the driveway and hope it worked. Not happening. I have a typical circular saw that accepts 7" blades and now I'm trying to figure out which would be the best blade to use that won't get gummed up or cause me to lose my noodle because it's not designed to cut this stuff.

The driveway is a typical asphalt driveway. Nothing special. Lowes carries blades designed to deal with masonry but I'm not sure if they will work in this situation or not.

There's also this 7" Continuous Circular Saw Blade. I only need it for this one project so spending $50 on a blade isn't something I'm looking to do.

Would either of the 2 blades above work or is there some magic hocus pocus blade that is better?

 

[alex71]

when i did the same thing at my house a few years ago i bought a blade at home depot. i don't remember the specifics, but i think it was a concrete blade. not diamond. worked just fine to cut a slot in the driveway.

 

[Neodogg]

you can get a masonary or diamond tip angle grinder wheel. You should also apply some water to the wheel to keep it cool.

 

[1991Syclone]

when i did the same thing at my house a few years ago i bought a blade at home depot. i don't remember the specifics, but i think it was a concrete blade. not diamond. worked just fine to cut a slot in the driveway.

What did you use to seal it once you stuffed the wire down the crack?

 

[GarageEnvy]

Have you considered renting? About 3 years ago I woke one Saturday and decided I was going to trim 6' off our asphalt circular drive. A 4 hour rental of a walk-behind concrete saw was $65 (plus blade wear). Because I was cutting over 150' I bought my own blade. I made the cut and loaded it back up in about 90 minutes. Unlike using the cutoff saw that I later bought and sold, I wasn't exhausted, soaking wet and covered in muck. Incidentally I was warned that asphalt was harder on blades than concrete and it was true. My new blade was totally done by the end of my cut.

 

[jhelrey]

Just put down the caulking they use to seal cracks in pavement...

 

[Packard V8]

She decided she wanted it installed in some of the harder parts of the yard to get to.

So instead of going all the way down the driveway, we are cutting across it half way.

At this point, I'd be seriously deciding which would be gone first, the wife or the damned dog. Your results may vary.

jack vines