What is Aashto t209?
AASHTO T 209, 2020 Edition, 2020 – Standard Method of Test for Theoretical Maximum Specific Gravity ( G mm ) and Density of Asphalt Mixtures. This test method covers the determination of the theoretical maximum specific gravity/gravity mix maximum (Gmm) and density of uncompacted asphalt mixture at 25°C (77°F).
What is GMM test?
Overview. The theoretical maximum specific gravity (Gmm) of a HMA mixture is the specific gravity excluding air voids. The standard theoretical maximum specific gravity test is: AASHTO T 209 and ASTM D 2041: Theoretical Maximum Specific Gravity and Density of Bituminous Paving Mixtures.
How do you calculate GMM in asphalt?
Gmm = maximum specific gravity of paving mixture (no air voids) Pmm = total loose mixture = 100% Ps = aggregate, percent by total weight of mixture (P1 + P2 + P3 + Pn) Pb = asphalt, percent by total weight of mixture. Gse = effective specific gravity of aggregate.
How do you test the specific gravity of asphalt?
An asphalt sample is prepared by heating it to a constant 135°C and separating it into loose particles by hand. The sample is placed into a calibrated pycnometer and weighed, then water at 25°C (77°F) is added to cover the sample. A cover is placed on the pycnometer, and a vacuum is applied.
What is the full form of GMM?
GMM
| Acronym | Definition |
|---|---|
| GMM | Good Mythical Morning |
| GMM | Gaussian Mixture Model |
| GMM | Generalized Method of Moments (economics) |
| GMM | General Membership Meeting |
How do you calculate GMM?
What is GMM mean?
What is a GMM in retail?
In most large retail firms there will be a general merchandise manager (GMM) who would probably hold the rank of vice president. Rather, the GMM would more likely be involved with quarterly, seasonal, or annual planning, budgeting and controlling of merchandising activities.
How do you solve optimum asphalt?
There are two popular method to find optimum asphalt content (OAC) MArshall and Superpave. Marshall method is divided two way, first OAC is the average of asphalt content at Max stability, unit weight and 4% air voids in total mixture. Second OAC at 4% air voids in total mixture.