Spike Brewing 12.5 Conical Fermenter Giveaway - Enter Now!

Home Brew Forums > Home Brewing Beer > DIY Projects > Fixing concrete

Reply
 
LinkBack Thread Tools
Old 03-20-2007, 08:31 PM   #1
Cheesefood
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jul 2005
Location: Poo-Poo Land
Posts: 6,809
Liked 30 Times on 20 Posts

Default Fixing concrete

OK, non brew related.

My folks got me a firepit for christmas. It's a huge concrete bowl that I just found out has a big crack in it. Any ideas on what's a good fireproof patch for concrete?

__________________
Past Winners: Caramel Cream Ale #1, Hoegaarden Clone, Boom-Boom Vanilla Ale, Lazy Monk Abbey Style, Amarillo Cream Ale. (AG),

Buy a shirt now!!! Please! Did I help you? Buya shirt!
Cool Shirts.


Cheesefood is offline
 
Reply With Quote Quick reply to this message
Old 03-20-2007, 08:40 PM   #2
the_bird
10th-Level Beer Nerd
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
the_bird's Avatar
Recipes 
 
Join Date: May 2006
Location: Adams, MA
Posts: 20,494
Liked 367 Times on 303 Posts
Likes Given: 97

Default

Is it still structurally solid? Not going to break?

You can buy a concrete mix that's designed for patching at the Depot. It's more expensive, about $10 a bag. No stones in the aggregate, it's just sand. I've been using it to fix where the basement walls are spalling, it's been holding like a mofo for a couple of years now (the outer half-inch to an inch in sections of the basement has crumbled, it's still structurally sound but messy. I take out the loose stuff and go over it with the patching 'crete).

It's a LOT smoother than regular concrete.

__________________
Come join Yankee Ingenuity!

"I'm kind of toasted. But I looked at my watch and it's only 6:30 so I can't stop drinking yet." - Yooper's Bob
"Brown eye finally recovered after the abuse it endured in Ptown last weekend, but it took almost a full week." - Paulie
"no, he just doesn't speak 'stupid'. i, however, am fluent...." - motobrewer
"... I'll go both ways." - Melana

That'll do, Pigley. That'll do.
the_bird is offline
 
Reply With Quote Quick reply to this message
Old 03-20-2007, 09:29 PM   #3
Brewsmith
Feedback Score: 0 reviews
 
Brewsmith's Avatar
Recipes 
 
Join Date: Aug 2005
Location: Torrance, CA
Posts: 6,259
Liked 30 Times on 28 Posts

Default

That Rapid Set stuff is great. We use it at work to patch concrete. I don't know how it holds up under high heat though.

__________________
Fermenting:#160 Apollo/Calypso Pale Ale
Kegged:#153 Old Helicon Barleywine 2013, #157 Irish Red, #158 Mosaic IPA, #159 Bravo/Delta ESB
Up Next:Brown Porter, American Stout, Imperial Stout
My Recipes
Tuba Sonata

Smith & Co. Custom Tap Handles
Brewsmith is offline
 
Reply With Quote Quick reply to this message
Old 03-20-2007, 09:51 PM   #4
Chairman Cheyco
***DRAMATIZATION***
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
Chairman Cheyco's Avatar
Recipes 
 
Join Date: Dec 2005
Location: Calgary
Posts: 3,274
Liked 7 Times on 7 Posts

Default

More concrete.

__________________

Once the wind has been broken, it cannot be fixed.

Chairman Cheyco is offline
 
Reply With Quote Quick reply to this message
Old 03-20-2007, 10:09 PM   #5
Shockerengr
Feedback Score: 0 reviews
Recipes 
 
Join Date: Feb 2007
Posts: 438
Liked 20 Times on 17 Posts
Likes Given: 1

Default

I've used hydraulic waterstop cement (comes in a small bucket) to patch leaks in foundations, but i don't know how well it will hold up to heat.

__________________
Shockerengr is offline
 
Reply With Quote Quick reply to this message
Old 03-20-2007, 10:30 PM   #6
Orfy
For the love of beer!
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
Orfy's Avatar
Recipes 
 
Join Date: Sep 2005
Location: Cheshire, England
Posts: 11,853
Liked 69 Times on 52 Posts
Likes Given: 30

Default

2 ways of fixing a crack in most objects.
Drill an hole at the end of the crack, this will stop the crack spreading.
Enlage the crack and fill it to a reasonable depth. This allows penetration and better bonding of the material. You can get fire cement that is designed for bonding fire surrounds.

When you use it do not set a massively hot fire going. Allow it to temper first with a smaller fire.

__________________
GET THE GOBLIN
Have a beer on me.
Orfy is offline
 
Reply With Quote Quick reply to this message
Old 03-20-2007, 10:34 PM   #7
BierMuncher
...My Junk is Ugly...
HBT_MODERATOR.png
Feedback Score: 0 reviews
 
BierMuncher's Avatar
Recipes 
 
Join Date: Jan 2007
Location: St. Louis, MO
Posts: 12,161
Liked 579 Times on 341 Posts
Likes Given: 210

Default

Patch it with heat rated fireplace mortar and then layer about 4-5 inches of sand on top when burning wood.

__________________

*******
Check Out My Rolling Kegerator

BierMuncher Tried & Trues:
Tits-Up IIPA (3-Time Medalist), Black Pearl Porter, Kona Pale Ale, Outer Limits IPA, Centennial Blonde (4.0%), Nierra Sevada (SNPA), SWMBO Slayer Belgian Blonde,

BierMuncher is offline
 
Reply With Quote Quick reply to this message
Old 03-20-2007, 11:23 PM   #8
Monster Mash
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2006
Location: Castaic, CA
Posts: 1,322
Liked 85 Times on 66 Posts
Likes Given: 12

Default

I find it hard to believe they made a firepit out of concrete. My nieghbor had a fire on her driveway (long story) and the heat make the concrete explode. I have also had coworkers use a torch to cut a steel pipe full of concrete and it exploded.

If the whole thing heats evenly I guess it would work but when concrete heats up it expands. If the concrete around the heated area is cool it has nowhere to go but out. BOOM!!!

Quote:
Originally Posted by BierMuncher
Patch it with heat rated fireplace mortar and then layer about 4-5 inches of sand on top when burning wood.
That is good advice!!!
__________________
My 1BBL Brewery Pics

Last edited by Monster Mash; 03-20-2007 at 11:26 PM.
Monster Mash is offline
 
Reply With Quote Quick reply to this message
Old 03-20-2007, 11:26 PM   #9
kladue
Senior Member
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2006
Location: Turner, Oregon, Oregon most of the time now
Posts: 2,306
Liked 47 Times on 43 Posts

Default

As mentioned above a nonshrink grout would fix the concrete, but if the bowl is concrete burning a hot fire at the start would probably be quite interesting as the trapped water turns to steam and bits of concrete pop like firecrackers. If you want to make a lower cost liner for the fire area mix perlite with Sairset refactory cement and build up about 1 inch layer in fire zone. Thin the sairset and mix with perlite to get a mixture that is mostly perlite and enough sairset to make it bind together, coat top of perlite mix with sairset cement to protect the softer perlite. This should reduce the heat flowing to the concrete to a level it could endure for a while, start with small fires to cure coating and dry concrete first.

__________________
kladue is offline
 
Reply With Quote Quick reply to this message
Reply


Quick Reply
Message:
Options
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
My Concrete countertop bar build 670x DIY Projects 19 04-03-2010 03:02 PM
Hole in my Concrete....LOL alz28 General Beer Discussion 7 10-22-2009 04:42 PM
Asphalt Vs. Concrete conpewter General Chit Chat 21 09-23-2008 02:33 AM
Stenciled Concrete Guigsy General Chit Chat 5 03-29-2008 09:02 PM
getting an oil stain off concrete Walker General Chit Chat 14 01-25-2007 04:34 AM