Russellwh:
Here are some comments from ACI CHAPTER 22 — STRUCTURAL PLAIN CONCRETE (concrete without reinforcement).
R22.2 — Limitations
R22.2.2 — Since the structural integrity of plain concrete members depends solely on the properties of the concrete, use of structural plain concrete members...
Russellwh:
Sure no problem.
No rebar??? That is very, very odd. I will give you ACI codes which I use. I can't tell you about your fibers. The lack of rebar or mesh (did he use that?) is very strange. I would not trust fibers to control cracking. Proper curing, jointing, and rebar all...
Russellwh:
Let me put in my 2 cents. After re-reading your posts, it is evident they did put in joints. However, it is also evident that he did not install them properly. Two days after the pad was poured is way too late. 4-5 hrs is usually the norm. I bet you had cracks in that slab...
Russellwh:
I have a similar experience to share with you. Last year we had our pad (26 x 26) done by our contractor. He was getting ready to leave and I asked him about the joints.
What joints?
He said he doesn't typically put joints on covered garages (not enough of ambient temp change)...
Anybody have an old AASHTO (c. 1960-65) regarding wind-loading?
We are evaluating an exisiting bridge (2485', 12 spans, steel girder w/ floor beam) built/designed in 1964/1965.
Our analysis seems to be a little bit heavy, as we are using AASHTO 3.15.2.1 (applies to spans over 125').
Thanks in...
