I really appreciate the help from everyone. I drilled the concrete guys and to be honest, they did not try to BS me much. It was not until the end that I let them do the Swiss hammer test. One question I had right off-the-bat was on the scale, the pointer would only return to 8 when the hold...
Thanks Dan,
No rebar was used. I've got 16 yds in the pour so I'm about 5.5" to 6" deep. I think they may be a little heavy on the amount reported but I am not too concerned on 1-2 yards as I did the compacting myself and looks like I've got in excess of 5+" when measured against the perimeter...
OK Guys here is the scoop.
Computerize mix is the following for an 8 yd pour
Material Design Qty Required Batched
57/67-V 1550 lb 12400 lb 12350 lb
78 stone 300 lb 2400 lb 2360 lb
sand 1311 lb 11222 lb 11320 lb
cement 405 lb 3240...
Well, today I spoke with the concrete guys who were out at the job site (I was at work). Basically they said these were only surface cracks (crazing). However, I thought crazing took on more of a radom pattern, similar to the They want to meet me Wednesday and do the hammer test. I...
Thanks Guys, this makes a lot of sense. The cracks I am seeing run perpendicular to the initial control joints. Basically, before the saw cuts, I had 3 separate sections 12x24 so the cracks developed perpendicular to the 24' length. Also, I am noticing more cracks near the garage door...
Thanks Ron. The contractor install the metal key type control joints running from front to back, space 12'. He came back after 3 days and then made 2 perpendiculat saw cuts. Therefore I have sections ~8'x12'. The first hairline cracks ran perpendicular to the original control joints. The...
Just had a 24x36 garage pad poured 4-5" thick (garage doors were not installed). Ambient temp was around 50°F and probably got to 25-30°F at night for the first 3 days. After that the high only reached 45°F. 3 control joints were used. After 3 days I am seeing random hairline cracks...
