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eagleknight

join:2002-11-08
Troy, OH
reply to leibold

Re: Concrete cracks -Revisited

Might be worth it to pick up an angle grinder. You can get a diamond blade for around $20 at Lowes or Menards. They cut like butter compared to the masonry wheels. You can run them without water.

Hahausuck
Premium
join:2003-12-14
kudos:2
I know there are grinder wheels that are meant for dry use but I just can't see using them for any long duration. They'd have to wear faster than a wet wheel.

robbin
Premium,MVM
join:2000-09-21
Leander, TX
kudos:1

2 edits
reply to eagleknight
That's what I would use -- diamond blade dry.

edit -- Diamond wheels last a long time, even dry. No need for an air compressor either. Cheap electric grinder works well for this.

Hahausuck
Premium
join:2003-12-14
kudos:2
Thanks Robbin.

Looks like a Harbor Freight trip for a grinder is in order.

averagedude

join:2002-01-30
San Diego, CA
Reviews:
·Cox HSI

decorative coating
Once you have all the concrete filled...
Have you thought about decorative concrete coatings like the attached picture (that I borrowed from Google search images).

Even a garage epoxy style coating will cover up the repairs.

Hahausuck
Premium
join:2003-12-14
kudos:2
reply to robbin
Grabbed a grinder that was on sale at Harbor Freight and a wheel at home d. Last night I did some research on materials and I found Quickrete has a resurfacing product with polymer in it that can be used for repair and resurface. Grabbed a bag of it at lowes.

My plan is to undercut the crack, and then rinse it out. Mix up the concrete repair as per label for a mortar mix and fill the crack then top it and brush the finish to help blend it.

I know it's not the be all end all fix as some day I'll have to replace the slab.
--
"Above all, I would teach him to tell the truth. Truth-telling, I have found, is the key to responsible citizenship. The thousands of criminals I have seen in 40 years of law enforcement have had one thing in common: Every single one was a liar."
J.E.H.

valvoj

join:2002-01-23
Cicero, NY
reply to stev32k
said by stev32k:

I've tried repairing several cracks in concrete over the years and the only thing that lasted was silicone caulk. None of the concrete patch material lasted more than a year.

+1. I've tried various concrete patches in my driveway and none worked. The only thing that worked for me was Sikaflex

Hahausuck
Premium
join:2003-12-14
kudos:2
reply to Hahausuck
Got it all cut out. Will be filling it tomorrow

robbin
Premium,MVM
join:2000-09-21
Leander, TX
kudos:1
Take a few pics before you fill it. How did the diamond blade / grinder combo work (other than being dusty)?

Hahausuck
Premium
join:2003-12-14
kudos:2
Not bad actually. The dust was no where near what I thought it would be.

Pain in the neck to undercut the gap but I actually discovered the crack runs all the way through the slab in some places.

The part up against the house back sliding door, I opened up quite a bit and under cut that as well. That was probably the most dusty part, I don't know if the concrete was the worst there than else where or what.

Seemed very powdery at that point compared to the rest.
--
"Above all, I would teach him to tell the truth. Truth-telling, I have found, is the key to responsible citizenship. The thousands of criminals I have seen in 40 years of law enforcement have had one thing in common: Every single one was a liar."
J.E.H.

Hahausuck
Premium
join:2003-12-14
kudos:2
reply to Hahausuck
Wife just said she wants to replace patio with brick, like what Badonkadonk See Profile has.

I guess this project is preparation for the drive way crack?


Cho Baka
Premium,MVM
join:2000-11-23
there
kudos:2
reply to Hahausuck
I know an Irish guy that can handle that for you.

His name is Phil...
--
The talented hawk speaks French.

Hahausuck
Premium
join:2003-12-14
kudos:2
reply to Hahausuck
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Hahausuck
Premium
join:2003-12-14
kudos:2

2 recommendations

reply to Hahausuck
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Materials and semi-finished work.


Juggernaut
Irreverent or irrelevant?
Premium
join:2006-09-05
Kelowna, BC
kudos:2

1 recommendation

That looks darn good there, bud! Nicely done!

averagedude

join:2002-01-30
San Diego, CA
reply to Hahausuck
Nicely done!

margerydany

join:2012-11-14
Dallas, TX
reply to Hahausuck
Hydraulic cement does not bond well to concrete, you can try with fast-curing resin and silica sand to fill the wider cracks.

margerydany

join:2012-11-14
Dallas, TX
reply to Hahausuck
Hydraulic cement does not bond well to concrete, you can try using fast-curing resin and silica sand to fill in the wider cracks.