hot mix asphalt hma volumetric calculations example

The compaction process causes the asphalt-concrete mix to be compressed and its volume reduced. As the density of the hot-mix asphalt material increases, the air-void content of the mix decreases (they are inversely proportional to each other). Properly designed, a HMA mix should have an air-void content in the range of 3% to 5%.

Durability of Hot-Mix Asphalt Durability of an asphalt mixture refers to the ability of the mixture to retain the original properties. These include the resistance to load and abrasion. Resistance to load can be impaired when: 1. The asphalt becomes hard and brittle and thus cannot withstand strains without fracturing. 2.

611 - HOT MIX ASPHALT (HMA)-COMMERCIAL GRADE 600-65 Use equipment that complies with DIVISION 150 to produce, haul, spread and compact the HMA- Commercial Grade mixture. Lift Thickness. Except for leveling courses or when shown otherwise in the Contract Documents, TABLE 602-9 applies. The Engineer may adjust lift thickness to utilize the most efficient method of acquiring specified

proper mix design of hot mix asphalt (HMA) mixtures is a time honored and fairly successful tool. Recent developments in the field of asphalt m~x design have encouraged the use of mixtures with a coarse aggregate structure to resist the affect of heavy traffic loads. By using the equations presented, which account

thickness of both concrete and hot mix asphalt roadways. The same parameters can be used for input data in computer programs on pavement determinations. The program used should be based on AASHTO design methods. Even though the AASHTO Design Guide is several years old, it is still used throughout the industry for pavement thickness design.

Example •14 inch thick HMA pavement •2 lanes with shoulders •4% discount rate • Proportioning and volumetric analysis The Future of Hot-Mix Asphalt Utah Asphalt Conference March 4, 2004 Author: m_buncher Created Date: 2/18/ 8:19:00 PM

concise example calculations to aid in the preparation of emission inventories. While emissions estimates are not provided, this information may be used to select an emission estimation technique best suited to a particular application. This chapter describes the procedures and recommends approaches for estimating emissions from hot-mix asphalt

The tiers are defined as follows: Tier 1 - The amount of RAP in the HMA mix is equal to or less than 15%. The selected PG grade of the binder should be the same as the Superpave specified PG grade. Tier 2 - The amount of RAP in the HMA mix is more than 15% but equal to or less than 25%. The selected PG grade of the asphalt binder

the term "bituminous" which covered all asphalt surfaces. The evaluation in this report assumes that an upgrade to a gravel road would be to Hot Mix Asphalt (HMA). As a result, these terms are used in this report. In practice, other surfacing could be used and cost calculations could be adjusted accordingly. Also, a roadway may go through an

Leaching behaviour of municipal solid waste incineration bottom ash mixed with Hot-Mix Asphalt and Portland cement concrete used as road construction materials. Road Materials and Pavement Design: Vol. 18, No. 3, pp. 687-712.

Hot Mix Asphalt Plants Response to Comment on Draft Emissions Assessment Report, AP-42 Section example calculations to aid in the preparation of emission inventories. (HMA) storage silo, truck load-out, hot asphalt storage tank, hot asphalt storage tank heater, aggregate handling, RAP crushing, diesel exhaust, and road dust. For each of

Mixing Plants for Hot-Mix Asphalt SC-M-402 (01/18) Materials Properties for Asphalt Mixtures SC-M-403 (04/16) • Specialty warm mix - only used on high volume routes for partial -full depth rehabilitation and FDP (2 Lifts) • Calculations will be based on residual asphalt content on the BOL, if no BOL, then 62.0% is

The voids in mineral aggregate (VMA) design parameter is one of the most important in the current Superpave mix design procedure that links hot-mix-asphalt (HMA) mix properties to field performance.

Focus here is on hot mix asphalt for high type pavements . Another Note Examples and properties tested in this presentation are based on Superpave mix design practices. volumetric calculation.

AI-IS-210 Procedures to Improve the Precision of Hot Mix Asphalt (HMA) Volumetric Calculations. This new publication details two procedures to improve the precision of hot mix asphalt (HMA) volumetric: 1) Asphalt mix aging at the design lab and at the field lab and 2) Using effective aggregate specific gravity to calculate voids in mineral aggregate (VMA) of plant-produced HMA. 12 pages.

Hot mix asphalt is usually sold by the ton and coverage. Most of the asphalt combinations that are commonly used for driveways and parking lots weigh 145 pounds per cubic foot of coverage. However, you can use the above-mentioned formula or an asphalt calculator to find out the amount of asphalt needed for any project.

Calculate the number of cubic feet to be paved. (Remember to convert the thickness to feet - by dividing by 12 inches per 1 foot). 10′ x 25′ x (4/12)' = 83.3 cubic feet of HMA. Asphalt Mixture typically weighs from 142 to 148 pounds per cubic foot (PCF) in-place. Use 148 PCF.

1" or 25.4 mm thick = 48 SqM. 2" or 50.8 mm thick = 24 SqM. 4" or 101.6 mm thick = 12 SqM. 3. How much is a ton of asphalt / Hot Mix? Price: Hotmix $175.00 ton + GST. Polymer + rubber hotmix $185.00 ton + GST ( add $10.00 extra per ton on the base price) 4.

Several minor changes were made to the mix during the course of paving, mostly involving the target binder content of the HMA. At the north end of the project, a scratch coat was placed prior to the HMA lift to provide some addi-tional strength to the non-recycled portion of the project. The asphalt binder used was PG58-28 from Amoco, Davenport.

gravity (also known as Rice specific gravity) and density of uncompacted hot mix asphalt (HMA) at . 77 F. using the weighing in air method. A supplemental dry back procedure is provided for reclaimed asphalt pavement (RAP) and for HMA where combined aggregate water absorption is 2.0 % or more determined by California Test 206 and 207.

Application of Performance Grade (PG) Bitumen. PG 52-28 is primarily used in paving for both new construction and pavement rehabilitation and in both dense-graded and open graded Hot Mix Asphalt (HMA). This product could also be used for sealing of edges of new to told paving and crack sealing. Other uses include spray applications for bridge deck and pavement protective membrane with fabrics.