Ask Experts Questions for FREE Help !
Ask
    scotty396's Avatar
    scotty396 Posts: 32, Reputation: 1
    Junior Member
    		  
    #1

    Sep 30, 2010, 09:45 AM
    concrete drive way
    In a concrete drive way should I use fiber mesh, rebar or both? Slab will be 4" thick 35x30..
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
    Uber Member
    		  
    #2

    Sep 30, 2010, 02:54 PM
    A recent trend is to use rebar with fiberglass fiber in the mix. You can also get steel fiber. Is this a 30X35 driveway or parking pad? Sounds like a heavy load area. Yes?
    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
    Home Repair & Remodeling Expert
    		  
    #3

    Sep 30, 2010, 05:45 PM

    In addition to mesh or rebar you need ground prep. Tell us the weights that will be sitting on or traveling over this big driveway. Excavation, gravel and tamping mat be as important as using rebar.
    waderow's Avatar
    waderow Posts: 2, Reputation: 1
    New Member
    		  
    #4

    Oct 20, 2010, 01:13 PM
    I have constructed, and demolished all types of concrete slabs including rebar, poly and steel fibre reinforced, and welded wire mesh. By far, the best way to reinforce concrete is with rebar, and a slight over kill is 10mm rebar at 16"OC. The bar should be chaired off the base, but still be in the lower 1/3 of the slab if possible.
    The next best choice is welded wire mesh, and it is economical, and easy to install. Generally you pull this wire up after initially pouring concrete, and try to get it in the lower half of the slab if possible. Be very cautios not to have it too close to the surface, as your tool cuts will hit the wire and "bounce" leaving a cosmetic blemish.
    Fibre reinforced concrete is undesirable for am exterior broom finished slab, as the brooming will leave pulled fibres on the surface.
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

Concrete drive problems [ 1 Answers ]

I had a new concrete drive installed 4 months ago, which has dried with a blotchy appearance. The colour of the drive is uneven, and in places the surface has a sandy like appearance. Presently there doesn't appear to be any pitting, but I am concerned about the durability of the drive. I wonder...

New Concrete Drive Problems [ 1 Answers ]

We recently had a new concrete drive installed and it looks like in some areas there are 'stretch marks'. Also, there are several areas where there are 'pock' marks and trowel marks. If they were to fill the wholes and grind down the trowel marks will this permanently fix the problem or will it...

How do I lay concrete over concrete to avoid chipping, flaking and cracking? [ 4 Answers ]

I am considering overlaying concrete over concrete in the basement. How can I best do this to avoid problems with it in the future. I plan on coloring the cement before I say or staining it once it has been overlayed. I want to do it right the first time. Thanks

Running wire under concrete drive using an existing plastic water line. [ 8 Answers ]

I have a broken neutral wire somewhere underground running from my house to my barn. It has an 70 amp circuit breaker in my house 200 amp service panel supplying a small panel in the bard. The run is about 200 ' using 2 gage aluminum three wire, no ground. Since I have to bury new lines, I...

Installing a concrete shower floor over a custom concrete pan. [ 4 Answers ]

I want to install a stained concrete shower floor instead of tile. I have already installed a custom shower pan and pitched it to specs. My question is should I be concerned about the new floor cracking since it will only be 1/2" thick? If you have any other suggestions on the install, please...

View more questions Search