What is PG 70 10 asphalt?

Rating: Bitumen PG 70-10 is Performance Grade (PG) Bitumen is bitumen which is graded based on its performance at different temperatures. Performance Grade (PG) bitumen cement based on two factors: traffic and pavement temperature.

What does PG mean in asphalt?

The Performance Graded (PG) system is a method of measuring asphalt binder performance. It was originally developed during the Strategic Highway Research Program (SHRP) in the early 1990s. In 2005, California agreed to adopt the PG system for grading asphalts in the state.

What does PG 64 10 mean?

A binder identified as PG 64-10 must meet performance criteria at an average 7 day maximum pavement temperature of 64°C and also at a minimum pavement temperature of −10°C.

How do you choose PG grade asphalt?

Performance Grade Specification

The top several rows (all the rows above the “original binder” row) are used to designate the desired PG grade. For instance, if the average 7-day maximum pavement design temperature is greater than 52^oC but less than 58^oC then you should use the “< 58” column.

What are the standard PG asphalt binder grades?

The expected grades for PG Modified are PG 58-34M, PG 64-28M, and PG 76-22M. 10. Do other States use PG Binders? Currently, all states use PG Binders.

PG Binder Grading Explained

What is the best grade of asphalt for a driveway?

The 60-70 grade is usually used only in pavements where traffic is very heavy such as principle city streets and very heavily trafficked rural highways. The second grade, 85-100, is by far the most widely used material for plant mixes and is suitable for most pavements.

What is the highest grade asphalt?

There are three different grades available in asphalt. The grades available are I-2, also known as base; I-5, known as top ;and the I-4 or commercial top grades.

What are the different types of asphalt binders?

Typical asphalt binders used in the U.S. are AC-10, AC-20, AC-30, AR-4000 and AR-8000. Viscosity grading is a better grading system but it does not test low temperature asphalt binder rheology.

How can you tell the quality of asphalt?

What is the difference between 9.5 12.5 in asphalt?

A 9.5 mm mix has a minimum VMA of 15.0 percent, a 12.5 mm mix is 14.0 percent, and a 19 mm mix is 13.0 percent. Smaller stone mixes have more aggregate surface area to coat, thus requiring more VMA and more asphalt. The lower the VMA, the lower the asphalt content for a given air void level.

What is PG 76 10?

Polymer Modified Bitumen (PMB) (PG76-10) PMB (76-10) S. Polymer Modified Bitumen PG76 – 10 S can be used in asphalt mix designs which result in the manufacture of cohesive asphalt mix with good elasticity suitable for type of traffic with 3.0 million ESALs.

What is the high temperature PG grade of the asphalt binder?

An example of a PG binder grade is PG64-22. The binder should resist rutting to a pavement temperature of 64°C and cracking to a pavement temperature of -22°C.

What is PG 76-22?

PETRO COAST Polymer Modified Bitumen (PMB), Grade 76-22 is a performance grade bituminous binder used in pavement construction in order to meet the requirements of hot temperature climate and the heavy traffic loads.

What is the maximum asphalt thickness?

When static steel-wheeled rollers are used, the maximum lift thickness that can be properly compacted is 3 inches. When pneumatic or vibratory rollers are used, the maximum thickness of lift that can be compacted is almost unlimited. Generally, lift thicknesses are limited to 6 or 8 inches.

What is typical asphalt content?

Hot mix asphalt (HMA) pavement refers to the bound layers of a flexible pavement structure. Asphalt pavement material is a precisely engineered product composed of about 95 percent stone, sand, and gravel by weight, and about 5 percent asphalt cement, a petroleum product.

What is PG 64-28?

Asphalt Cement, PG 64-28.

What is 60 70 grade of asphalt?

Bitumen 60/70 is a standard Penetration Grade of Bitumen ASTM D946M, typically used as a Paving Grade Bitumen suitable for road construction and for the production of asphalt pavements with superior properties particularly in road and airport constructions and other similar applications.

What is the best asphalt to use?

Of all the asphalt types available, hot mix asphalt is the most commonly used on roads, pavements. It is a flexible mix of fine and coarse aggregate and asphalt binder, which produces a highly weather-resistant pavement. Hot Mix Asphalt is heated and poured at temperatures of about 300 to 350 degrees Fahrenheit.

How thick should new asphalt be?

A 4-inch thickness may be adequate, but 5 or even 6 inches of full-depth asphalt will assure you of a stronger, stable driveway under a wider range of climate and loads. As an option, some contractors use 6 to 8 inches of compacted aggregate, or gravel, as a base under 3 inches of asphalt pavement.

What are the 3 types of asphalt?

There are three main types of asphalt: Hot Asphalt, MC Cold Mix, and UPM. There are also different varieties of these asphalts for summer and winter use. Below is a brief overview of each type of asphalt.

How thick should a residential asphalt driveway be?

Residential driveways typically use 2 to 3 inches of asphalt with 3 being suitable for occasional large trucks or heavy equipment. Underneath the asphalt you should have 6 to 8 inches of granular base aggregate.

What is the difference between Type 3 and Type 4 asphalt?

Type III, is considered to be “steep” asphalt but is limited to slopes up to 2 in 12, and Type IV is “special steep”. The drawback is, the longer it is processed, the shorter the life.

What is the longest lasting asphalt?

Of the 3 types of asphalt shingles, the longest lasting are luxury (or premium) asphalt shingles. Luxury asphalt shingles are larger and thicker than 3-tab or architectural shingles, which makes them more durable.

What is the most popular asphalt?

Now you know architectural shingles are the most popular asphalt shingle on the market today.

What is Type 7 top asphalt?

Type 7 asphalt contains fine stone and dust which has a very smooth finish. Type 6 asphalt contains slightly larger stone, so it provides more strength but is not quite as smooth as Type 7. Once Sealcoated it is difficult to distinguish the difference in the textures.