Grinding a transition

[6togo]

I have a two car garage that has a small step between the floors and the reason its there is I wanted a fairly flat floor on the newer side of the garage floor
(I added the second garage recently) for the two post lift.
By doing this I have a even floor up front and it ramps up to around 2.5" in the back. I been trying to figure out the best way to tackle this job I really want to ramp it down on the old side to meet the new or at least half and blend the other on the new floor. Is there a floor grinder that will do this type of job I can rent?

 

[Armorpoxy]

Hi, 2.5" is a LOT of grinding to do. You could possibly do this with a heavy duty 7" hand grinder and diamond cup wheel, or bring in a pro. If you do it wear a good particulate respirator due to the silica thrown off. Make sure to use a dust shroud with proper vac and even better a Dust Deputy pre separator. Most small rented grinders will have trouble with this type of grinding. Don't even consider a Diamabrush.

Alternately check this out...Rampstar ramping compound. Our www.prep-crete.com Division uses this frequently to adjoin dissimilar heights since often grinding is not economically feasible.

http://cmpsp.com/wp-content/uploads/2014/10/RAMPSTAR-M2015.pdf

 

[6togo]

I think that may be a better option the grinding sounds time consuming and messy! I also found this product which seems to be the same= DUROCK™ BRAND QUIK-RAMP™ FLOOR PATCH
Both state to use their primer for ramp applications should that be grinded under the ramp also and will the primer have affect on the epoxy primer? I would guess the ramp would need grinded also once it cures before coating?

 

[Armorpoxy]

Follow the mfgr recommendations for use of their product. Once ramped and complete and smoothed out to your satisfaction ok to coat. Make sure to use epoxy primer over the floor and ramp before coating ramp to even out the porosity.

 

[6togo]

So that ramp material don't need addition prep work once installed? What happens say I prime for the ramp and it goes a little wider than the ramp should that primer be removed?

 

[Armorpoxy]

Use the ramp mfgr primer under the ramp only. If you over prime then grind it off beyond the ramp. Then, prime everything with epoxy primer. The ramp material is a cementious type product and should be lightly prepped.

Would also suggest a light sanding or grinding of the ramp material prior to priming for epoxy.

 

[6togo]

Gotcha trying to find the ramp materials now!

 

[LegacyIndustrial]

Our HD110 Concrete Repair material can be used to create transitions.
I have personally made speed bumps from it!

http://www.legacyindustrial.net/products/concrete-repair/hd-110-epoxy-concrete-patch.html

 

[6togo]

I think that's a good product also but not cost effective for how much I need. I can get 50lb bags for $50 or less and might need 4-5.

 

[Armorpoxy]

Any cementious-type repair material will always be much less expensive than an epoxy mortar type product. Both have their uses though!

 

[6togo]

I found another patch material locally that uses a polymer mix instead of water and don't need priming its called SpecChem Duo patch 50lbs $29