Good good. They had a lady at my wife’s office today who tested positive back in March, come back in for a 2nd test. Similar symptoms. Takes a week before they’ll get results back. L
Stop in for a cup of coffee
- Thread starter toolmanmike
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Unconventional
Well-Known Member
For Tim's back yard
Unconventional
Well-Known Member
Forms?
We don need no steenkin forms
We don need no steenkin forms
I like the ones that do curbing. I call them 'curb crappers"...
According to my books the 2.02/1.60 heads were either 915 X heads or TA heads which were U's or O's.
Unconventional
Well-Known Member
8" or 12" ?
Thick? That slab is above there knees
Unconventional
Well-Known Member
12" was the Interstate spec the last time I did that kinda concrete. Outfit I worked for was the first to pave 1 mile 48 feet wide in 8 hours. Almost 1200 cu yds./hour
In what way?It was always a challenge to work with those slipform gangs
Unconventional
Well-Known Member
Keeping that concrete at the right consistency and for the paving guys as fast as possible
That's what I thought. I guess a little to thick and it doesn't form. Too thin and...
Lots o' crete. You guys out west use rebar and mesh? We must here where it freeses and thaws.
My books too.
But now after reading the posts from guys who have had seen many original examples, I'm going with them. In fact I just cut and pasted from four of those posts. The first two quotes sum it up clearly.
Alaskan_TA
The X heads were used into the 1970 model year, but not for all of the 1970 model year.
There are plenty of 1970 340s out there with 915 heads.
Cylinder Head ID - Casting and Date Code
Cracked Back
If an X headed 340 made it to 1971 production it's one in a million.
915 J heads were the primary head in 1970. The X heads ran early in production for 1970 and I've seen some December 1969 build cars with them, but they are not the norm.
1971 plymouth 340
Mopar Official
Brian6pac Cylinder Head ID - Casting and Date Code
Jarahabi Small Block Heads
I'm willing to call the books wrong on this.
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Unconventional
Well-Known Member
They really didn't do rebar until the early 80s in the concrete paving. Very minimal usage of the steel, it really cramped their style/production. Even without steel it's pretty much maintenance free for 20 years.
While we're asking concrete questions,
How are expansion joints put in when pouring like that?
Or are they cut later?
Unconventional
Well-Known Member
Now that I think about it, they did do a job at one of the Phoenix airports that incorporated these little crimped steel needle looking things added to the concrete at the plant. I was not happy when one of those little beggars wound up stuck in my hand when I was doing some plant repair.
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Unconventional
Well-Known Member
About 7 days after they paved they cut the control joints with a concrete saw on rails. First 28 days was a "no contact" situation with that concrete.
Always seemed like more work, but seeing that machine I can understand why cutting makes more sense in that situation. A little different than when pouring a sidewalk with forms!
Unconventional
Well-Known Member
We were doing a state highway in LA. Big paving crew was doing their thing one day. A kid running from the local PD in a VW Bug found a CALTRANS gate to the project open and up on the right of way he comes. Drove the Bug over the edge of that 12" mat of fresh concrete right up behind the paving machine until he lost traction 
. Made about 150' of tracks in the fresh mat. Caltrans had kittens our paving superintendent would have skinned the kid if the PD hadn't hauled him off 
The next day I got to take the loader and push all that concrete out of the way 
I heard their insurance company told them "NFW are we paying for that". Cost the kid's parents $20K to remedy the situation.
. Made about 150' of tracks in the fresh mat. Caltrans had kittens our paving superintendent would have skinned the kid if the PD hadn't hauled him off The next day I got to take the loader and push all that concrete out of the way I heard their insurance company told them "NFW are we paying for that". Cost the kid's parents $20K to remedy the situation.
First...
Where's the rest of ya'???
Where's the rest of ya'???
Still nobody??? 
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