pouring concrete in pole building

[mopower440]

already have the building permit.. and about not being experienced, like i said above, im not stupid, maybe not experienced, but not dumb, i can follow directions and hammer nails, and also had the help of my dad wich has built 2 garages and a log home..im not saying that im not experienced to the point that i dont think im capable of building this thing, just not experienced to the point of not knowing how to go about this thing with the rock and stuff..this isnt a 'normal' situation i wouldnt guess seing as i havnt heard too many others say they had this 'running into rock' problem..now please, give me full details on hammerdrilling and what 'L' brackets to get and what bolts or rod or whatever to get so i can get this thin anchored down if at all possible..gotta get moving ahead.
just called rental yard about this 'hammerdrill', he said they have some bolt things that after you drill the hole in the rock, you stick this bolt down into the hole and as soon as you pull up on the bolt, it has something on it that comes out and grabs the rock, something like those things you use when trying to hang something on drywall where there is no stud, has the springy wedge type thing, now, will this work also?

 

[chucko]

</font><font color="blue" class="small">( already have the building permit )</font>
First I never said you were stupid...But I do think you are in over your head. I don't think that my doctor is stupid but I would not let him build for me.
Several people have told you several ways to attach to the rock. But if you have a permit call the inspector tell him what you have and ask what they would want to see so you can pass their inspection.... No matter what or how I or others tell you to do anything, if it does not make the inspector happy then it does not mean anything. Heck the inspector may have a bad day and tell you to drill the rock to 6' and put the whole pole in it in conc.

 

[GerardC]

</font><font color="blue" class="small">( call the inspector...)</font>

Chucko,
That is exactly what I was trying to say with a couple of "real" examples. My neighbor had to pay 20% of the total cost of the cancelled order for the garage because they didn't call the inspector first. As I said before, they know the building codes !!!!!! Mo NEEDS to contact them on this problem.

 

[Lazy]

Hi
whatever method you use to anchor the post If you drill a hole either using a hammer drill or core drill, drill the hole at an angle it is much harder to pull out than if the hole is straight.

Charlie

 

[Junkman]

Mopower, I have to tell you, that your construction of this building is enough to test the will power of an angel. /forums/images/graemlins/grin.gif Here is what you need to drill the hole in the rock. Depending on the size of the threaded rod that you are going to use will determine the size of the drill bit that you will need. Usually the drill bit is 1/4" larger than the diameter of the threaded rod. You MUST purchase high quality threaded rod at an industrial supply house, not your local hardware store. The holding power of any fastener is only as strong as the weakest link. The machine that the hole is drilled with is called a hammer drill. It rotates as well as hammers at the same time. I have pictured mine for your reference. You can rent them. There are many different brands, but you want one that is sufficiently large enough to do the job. Mine is 1 1/2" Milwaukee. That means that it will handle up to a 1 1/2" solid drill bit to make a hole. It will also drill up to a 6" using a core bit, but that is a hole saw and we don't need to go into that part now. Look at the picture and rent one of this size.... 1 1/2"......... it will do what you need it to do.... nothing smaller!!!!!!

 

[Junkman]

Here is an assortment of drill bits and chisels that fit this hammer drill. This is just to show you what they look like. You might not need all of them, just so you know what is available. Where you rent the hammer drill, they will have an assortment to choose from. You will have to make that determination. I grabbed this picture from a eBay auction..

 

[gmason]

Well, how about buying a little concrete mixer and buy the sand and peagravel and mix it yourself over a couple weekends. You could mix and pour 8x8 sections easly. Save money all the way around...

gary

 

[Junkman]

This is what you use to set the threaded rod with. They say that a picture is worth a thousand words, so I just saved you a lot of reading. This product will set up in 30 minutes. After 24 hours, I promise you that a team of 30 wild horses won't be able to pull those threaded rods out of the holes if you follow the directions for mixing the product. There is a 800 telephone number to call for more information if you like. It is 800-282-5828 8:30 AM - 9:00 PM Mon - Fri or 9:00 AM - 1:00 PM Sat (Eastern time). This is the Quickrete Answer Line. The product is called "Anchoring Cement". I have used it and it doesn't pull out no matter how hard you try. Picture enclosed.

 

[mopower440]

Guys, i did mention this to the inspector when i got the permit, he just said to try to anchor it down, thats it, so i was figuring the rebar in the concrete method the whole time, anyways, on to the hammerdrill, ok, if the bits are usually only 6" long, that may be another problem alltogether, see, most of the rock i hit was not flat, meaning it might be wedge shaped or sideways and such, so what i did was i poured concrete deep enough around it to be level at the highest point of the rock, therefore, on some holes, the concrete that was poured on top of the rock that the post now sits on can be up to 8" deep, so i need to get through it and into the rock, do you know if they have much longer bits?

 

[CTyler]

A good hammer drill and bit will drill into rock fairly quick. Depends on how far you have to go. For example my cheap HF 1" hammer drill will drill 4" of concrete in less than a minute.

I don't know what is required for anchors in your area but youd be amazed at what the epoxy/glue type stuff will hold. The other anchor your refering to may be a sleeve anchor. As you tighten the nut it pulls the tapered leg up and expands the sleeve. The more you pull the tighter it gets.