I just did some Indirect tensile strength on these 3.75" diameter cores since I don't have any good use of these cores. The strengh at 77F degress was very impressive, in the range of 280-320psi. Our typical dry strengh as part of TSR test usually below 150psi.
We was planning to send these 6"...
Thank you all very much again for your replies. The pavement was already open to general public when the problem was identified. It was not there when the construction was just completed. Again, this area is the only area had the problem.
The problem area was in the middle of area paved that...
Ron, thank you very much for the response. We did reheat the sample for Marshall test, however, the reheat was tightly controlled just to get materials loose and ready for compaction. The stability value from reheat sample is similar or just slightly higher than the lab design value. We do have...
We have a job that requires Hveem stability of 37 minimum. The mix used 25% RAP and the production was on the high side of AC content (5.6% vs the 5.0% as target), the air voids dropped to around 1% and Hveem stability was only 12. The lab mix design data with around 5.6% AC shows around 30...
Thanks for all the replies. I just attached a picture for you guys to see. I am wondering if there is any low-cost test can easily identify the cause so we can use it to recover some costs from the owner. We just cut the whole slab out and replace it...
We have a newly constructed asphalt pavement that has a small isolated area (1ft by 3 ft) under left wheel path showed surface loss, mainly big aggregate loss. The initial thought after looking at the pictures are due to the gasoline spillage. Is there any lab tests we can use to verify this...
