Piers - Concrete Curing/framing - Building & Construction - DIY Chatroom Home Improvement Forum


Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Building & Construction

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Display Modes
Old 04-21-2010, 06:39 PM   #1
Member
 
Join Date: Apr 2008
Location: Western Masschusetts
Posts: 575
Rewards Points: 500
Default

piers - concrete curing/framing


just finishing pouring 5 piers - 4' deep 12' diameter sonnotubes at about 5pm EST.

the anchor bolts are in and the stuff is already setting up nicely.

the post anchors are the new simpson really heavy gauge steel (about 1/4" thick) anti uplift style.
it looks like the nut needs to be tightened on the bolt before putting the pad in place and dropping the post in.

wondering if by tomorrow morning i can start framing on these piers, and just lightly tighten the nuts down and away we go?
what do you guys think?

the bags said walking-on time 12 hours. but does this mean the bolts can handle a bit of strain?

thanks.

Advertisement

wombosi is offline   Reply With Quote
Old 04-21-2010, 07:49 PM   #2
Mod
 
kwikfishron's Avatar
 
Join Date: Mar 2010
Location: Kansas (NCK)
Posts: 7,841
Rewards Points: 2,472
Default

piers - concrete curing/framing


What are you framing?

Advertisement

__________________
A Picture Is Worth A Thousand Words
Especially In The DIY Chatroom
kwikfishron is online now   Reply With Quote
Old 04-21-2010, 08:15 PM   #3
Old School
 
Willie T's Avatar
 
Join Date: Jan 2009
Location: St. Petersburg, FL Minds of moderate caliber ordinarily condemn everything which is beyond them.
Posts: 3,634
Rewards Points: 2,000
Default

piers - concrete curing/framing


When I saw the question, I didn't think much about it. But when I saw your name, I broke out laughing.

The man who is anal about precision and perfection in his rafter cuts wants to cut time he knows very well concrete needs to cure for strength by putting the most vital bolts in the whole project under stress within about 16 hours of pouring?

Look it up. Go read the time charts for strength development in concrete curing. Got to say you sure caught me off guard with this post.
__________________
"True eloquence consists in saying all that is necessary, and only that which is."
François Duc de La Rochefoucauld
Willie T

Last edited by Willie T; 04-21-2010 at 09:56 PM.
Willie T is offline   Reply With Quote
Old 04-21-2010, 08:38 PM   #4
Member
 
Join Date: Jan 2009
Location: South of Boston, MA
Posts: 17,248
Rewards Points: 2,000
Default

piers - concrete curing/framing


I waited several days before I did anything with mine
Scuba_Dave is offline   Reply With Quote
Old 04-21-2010, 09:15 PM   #5
Member
 
Join Date: Apr 2008
Location: Western Masschusetts
Posts: 575
Rewards Points: 500
Default

piers - concrete curing/framing


Quote:
Originally Posted by Willie T View Post
When I saw the question, I didn't think much about it. But when I saw you name, I broke out laughing.

The man who is anal about precision and perfection in his rafter cuts wants to cut time he knows very well concrete needs to cure for strength by putting the most vital bolts in the whole project under stress within about 16 hours of pouring?

Look it up. Go read the time charts for strength development in concrete curing. Got to say you sure caught me off guard with this post.

willie, i don't know what your problem is. first of all, i'm not anal about rafter cuts, i simply wanted to understand the math.
and this post was a simple question. the bag tells me i can walk on it in 12 hours, why not frame on it in 16 hours?
wombosi is offline   Reply With Quote
Old 04-21-2010, 09:50 PM   #6
Member
 
Join Date: Jan 2009
Location: South of Boston, MA
Posts: 17,248
Rewards Points: 2,000
Default

piers - concrete curing/framing


From what I have read on several sites 3-7 days
2/3 of strength achieved in 7 days ?
..they linked to sites, but links were not working
Min seems to indicate 3 days. 7 days preferred
Scuba_Dave is offline   Reply With Quote
Old 04-21-2010, 09:51 PM   #7
Mod
 
kwikfishron's Avatar
 
Join Date: Mar 2010
Location: Kansas (NCK)
Posts: 7,841
Rewards Points: 2,472
Default

piers - concrete curing/framing


If your building a house, it's a 28 day wait in my neck of the woods.
__________________
A Picture Is Worth A Thousand Words
Especially In The DIY Chatroom

Last edited by kwikfishron; 04-22-2010 at 02:17 PM.
kwikfishron is online now   Reply With Quote
The Following User Says Thank You to kwikfishron For This Useful Post:
Willie T (04-21-2010)
Old 04-21-2010, 11:23 PM   #8
Civil Engineer
 
Join Date: Mar 2009
Location: Boston
Posts: 4,309
Rewards Points: 2,196
Default

piers - concrete curing/framing


Standard concrete achieves design strength in 28 days, and continues to strengthen for many years after that. Typically the concrete achieves at least 50 percent of design strength after 3 days, and 75 percent of design strength after 7 days. This depends on the mix, what additives were used, and placement conditions.

If you plan to tighten the bolt down fully because you are going to cover it over and will not have access to it later, you need to wait at least three days, or your risk cracking the concrete when you tension the bolt. If you just need to lightly attach it, and can torque it to design specs later, you could lightly tension after 36 hours, and tighten to spec after 3 days.
Daniel Holzman is online now   Reply With Quote
Old 04-21-2010, 11:39 PM   #9
Member
 
Join Date: Apr 2008
Location: Western Masschusetts
Posts: 575
Rewards Points: 500
Default

piers - concrete curing/framing


thanks guys.
to answer kwikfisher:
just building a small porch on these things- 2X6 double rim joist, 2X6 joists.
going to hold off tomorrow and do a gentle torque on friday morning and begin framing.

i might frame the rim joist on temp supports, then slide the posts in later. i don't like doing things this way, though.

thanks again.
wombosi is offline   Reply With Quote
Old 04-23-2010, 09:24 AM   #10
Member
 
Join Date: Jun 2009
Location: atl & hilton head
Posts: 3,447
Rewards Points: 2,476
Default

piers - concrete curing/framing


since no one knows when conc finally's cured & we can measure time, that's why we test at 24hrs, 7d, & 28d.

you did use ' L ' or ' J ' bolts, right ? IF it were mine, i'd finger-tighten now & tighten more in 3d as dan post'd,,, it is for uplift not suspension,,, gravity'll keep anything like this in place !

Advertisement

stadry is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
How To Keep Your Concrete Mixer Driver Happy Mort How To Guides 38 02-12-2014 07:25 PM
Depth of Concrete Piers for A Deck marathonman Building & Construction 3 05-18-2009 05:22 PM
Concrete piers in 55 gal drums support I beams DeanPk Building & Construction 9 08-11-2008 05:05 PM
Concrete piers for post & beam foundation jpecor Building & Construction 1 08-01-2008 01:27 PM
Reinforce concrete piers? Neil_K Building & Construction 8 11-21-2004 07:53 PM




Top of Page | View New Posts