Add mixtures
Add mixtures
(OP)
What could I suggest to my clients to help a new concrete foundation reach highest strengh possible in less than 28 days after pour?
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS Come Join Us!Are you an
Engineering professional? Join Eng-Tips Forums!
*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail. Posting GuidelinesJobs |
|
RE: Add mixtures
Ron
RE: Add mixtures
Some operations state that forms may be wrecked at an early stage but no loading for a minimum period of time. Check all the specifications before letting the contractor move on when it involves loading.
RE: Add mixtures
The design strength I need is f'c = 2500 psi. Yes, I realize that full compressive strength is expected at 28 days and I believe almost 50% capacity can be expected in 14 days. I want to maximize this.
This project involves moving a timber frame church from a closing military base. The church was constructed by the Army during WWII. (Great engineering, simple, elegant timber trusses spanning 36 feet with bays at 12' o.c.)
Now, a church group has purchased the building for $1 and will pay about $100k to have it moved by truck. The structure will be sliced into approx. 14' sections and rebuilt at the new site. New stud walls with HardyFrame light gage steel shearwalls will be addes as well as stronger PSL floor beams. The raised foundation I designed includes spot footings, combined footings and gravity load bearing retaining walls.
Naturaly, the rush is on to avoid the rains because the interior hard wood floor is at risk. So, the contractor wants to begin to lift the sections onto the foundation only about two weeks after the pour.
Again, my question: which add-mixture would be best to recommend and how much compression will the foundation take?
RE: Add mixtures
You can probably find Sika on the internet.
Good Luck
RE: Add mixtures
RE: Add mixtures
The cost should not be an issue if the contractor is able to move on with the operation saving both time and perserving the church's interior.
RE: Add mixtures