Threaded Rod anchoring help please

[xtal01]

Hello,

I am building a large workshop (3500 sq ft). I estimate I will need about 100 anchor bolts.

When the pad was poured almost 10 years ago, I had no idea where the walls would be or if I would bolt the sill directly to the pad.

I started building last year. In order to hold the walls in place, I put the mud sill (with a foam seal and caulk under it) down using concrete screws (tapcons).

I then put the walls in place (long story but since this was a one man build, I put hinges on the bottoms of the wall to the mud sill and then stood the walls up … they are 16 ft high).

My plan was to come back … drill through both plates ... drill 6” deep into the concrete pad (monolithic slab with thickened edge) … then epoxy in threaded rod (½” hot dipped galvanized) …. then plate (say 2 x 2) … lock washer and nut.

OK … winter is coming … I am just getting the last trusses up …. I still have not anchored the walls!

So, I grabbed for my old faithful Pure 110+ … wow, it has been a while since I did this … Powers Fasteners is now owned by Dewalt.

I started reading …. 50 deg min temp … ouch .. we have snow on the mountain behind me. We are 50 – 55 highs and into the 30’s at night here in VT.

I can’t use mechanical fasteners … I am too close to the edge of the pad.

If found Red Head makes a C6+ that has almost exactly the same properties but can be used to 40 deg … still close and it was sold out of the first 5 places I called.

So I when back to the Dewalt page … OK, I have several chooses …. but the more I read, the more confused I got.

I tried their technical line but the guy just read me the same thing I read off the web page …. hmmmm.

I am in rural VT (well all VT is rural, our largest city only has 42,000) and we have no local supplier.

I am hoping if I post he show you guys the three chooses, you guys can explain the difference and tell me if they will all work in my application.

Pure110+ …. Epoxy …. 17,470 lbs ultimate, 4,370 lbs allowable tension in 3,000 psi concrete for a ½” bolt … suggested cartridge temp 68 deg minimum … I “assume” the minimum pad and rod temperature is 50 deg as that is the lowest temp listed in the setting chart.

AC200+ …. Acrylic …. 12,560 lbs (does not say ultimate or allowable .. listed as concrete break out strength 6” embed in 3000 psi concrete) …. cartridge 41 – 104 deg with base materials 14 deg F

AC100+ Gold …. Vinylester …. 17,420 lbs ultimate, 4,355 allowable in 3000 psi concrete 6” embed … cartridge 23 – 95 F … I see a note saying “.. concrete and masonry as low as 14 deg F …”

Interestingly I see in the AC100+ Gold a note saying “ … evaluated for long term and short term loading …”

I think this was the issue I ran into years ago … are not all anchoring products made for “long term” …. I would expect it to last as long as the building … or are they talking about things like “creep” over the life of the product?

I am just confused as to why three different product … all different materials … all similar in strength …

I would like to use the AC100+ Gold. It seems to meet all the criteria … good low temp strength and installation …. can use a standard caulking gun if I use the single tube (10:1 ration) … cheapest of the three …..

Is there any reason why I should or should not use the AC100+Gold ???

Pure 110+ spec sheet:Link

AC200 spec sheet: Link

AC100 spec sheet: Link

Link to my YouTube channel showing videos of project: Link

Link to my facebook page showing videos of project: Link

Thanks … Mike

 

[LittleWheels]

I normally assume that evaluated for long-term loading refers to creep of tensioned anchors.

 

[BridgeSmith]

Usually, the temperature limits for the products are for the concrete being anchored into during the curing period, which is usually better, or can be made better, than the air temp. Measure your concrete temp. in the afternoon, and then cover it up to insulate it overnight, and see where it's at in the morning. That will give you a better idea what products you can use.

Rod Smith, P.E., The artist formerly known as HotRod10

 

[xtal01]

Thanks!

I sent an e-mail to the company ....

The Pure110+ that I have used before does have a lower limit of 41 deg F

The AC100 and AC200 both have lower limits of 14 deg F and will work fine.

The AC200 I was told is a bit stronger and used more for rebar applications.

The AC100 is on par with the Pure110+ and they recommend I go with that.

Thanks so much !!!

Mike