PG 52-40 Asphalt Binder
PG 52-40 Asphalt Binder
(OP)
We have a road paving project specifying PG 52-40 asphalt binder. I have never worked with this grade of asphalt, we typically use PG 52-28. I am interested in information from anyone who has experience with PG 52-40 We are specifically interested in information concerning workability and the use of WMA.
Thanks
Thanks





RE: PG 52-40 Asphalt Binder
Dik
RE: PG 52-40 Asphalt Binder
RE: PG 52-40 Asphalt Binder
RE: PG 52-40 Asphalt Binder
RE: PG 52-40 Asphalt Binder
Dik
RE: PG 52-40 Asphalt Binder
dik, Good point on the pavement temperature. Even in cold climates, 120 plus pavement temperatures occur and rutting seems to be one of the major issues. Peak traffic coinciding with relatively high pavement temperature. That would be more on the design end.
Currently facing production, information concerning the manufacture and placement could be helpful and valuable.
Thanks
RE: PG 52-40 Asphalt Binder
Is there a PG 100-40? or something of that ilk?
Dik
RE: PG 52-40 Asphalt Binder
While I have been around quite a bit of paving over the last 15 years working as QC for a paving contractor I am not extremely educated on the various binders. We almost always use PG 52-28 and occasionally have used some modified binders, but never PG 52-40 that I remember.
I have never seen any info on a binder with a grade of 100 Celsius. I have seen an asphalt binder listed in a table that was around PG 86-22.
Can I ask what type of project you are involved in that would require a binder in the vicinity of PG 100-40?
AKS
RE: PG 52-40 Asphalt Binder
Dik....the PG grades go in 6 degree increments, up and down, based on high temp being 7-day average and the low temp being a 1 day minimum, as jmcc noted.
RE: PG 52-40 Asphalt Binder
In Alaska there is way too much climate variation from region to region to pin it down to one grade of asphalt. We have used PG 52-28 thru PG 64-40.
RE: PG 52-40 Asphalt Binder
It's for a project I've already done and just gaining additional information for my own use. The earlier work was simply to replace a little roadwork that was cut out to do some work on a retaining wall and concrete wall.
I guess averaged day and night the 7 day could be in the order of 58.
Thanks, Ron
Dik
RE: PG 52-40 Asphalt Binder
76-16 is about the best you can do
http://www.pavementinteractive.org/superpave-perfo...
RE: PG 52-40 Asphalt Binder
It was 100+ degrees everyday for like 2 weeks. The pavement couldn't make density, as soon as traffic got put on it the road pretty much failed at every intersection due to shoving. It was quite the learning experience.
RE: PG 52-40 Asphalt Binder
Dik