preload-image

specific gravity of asphalt concrete

= effective specific gravity of aggregate. G sb = bulk specific gravity of aggregate. G b = specific gravity of asphalt. Calculation using bulk and effective gravities determined in sections 3.2. and 3.3. and asphalt specific gravity from Table 1. P ba = 100 x (2.726 - 2.652 ) (2.652 x …

in aggregate specific gravity affect the analysis of asphalt concrete. A summary of the AASHTO and ASTM standards is presented including the alternative methods allowed within the standard test methods. The Arizona, Wisconsin, Texas and California state highway agency methods for fine aggregate specific gravity methods are summarized.

Hot Mix Asphalt Concrete Density, Bulk Specific Gravity, and Permeability John P. Zaniewski, Ph.D. Yu Yan Asphalt Technology Program Department of Civil and Environmental Engineering Morgantown, West ia 2/1/2013

asphalt concrete specimens, the test for specific gravity is usually performed on specimens previously used for the stabilometer test. F. CONVERSION CHART FOR OPEN GRADED ASPHALT CONCRETE. Mass per cubic meter = Bulk specific grav-ity x 1000 kg/m. 3. The following chart is used to convert the height of a compacted specimen to bulk specific ...

T 166 BulkSpecific Gravity of CompactedHot Mix Asphalt Using Saturated Surface-Dry Specimens . T 209 TheoreticalMaximum Specific Gravity and Density of Hot Mix Asphalt Paving Mixtures T 228 SpecificGravity of Semi-Solid Bituminous Materials. 1ThisStandard Operating procedure is based on AASHTO T 323-04. WSDOT Materials Manual M . 46-01.33

Calculating Effective Specific Gravity In asphalt concrete, the binder is only partially absorbed into the pervious pores: If you use the bulk specific gravity to determine the volume occupied by the aggregate particles in an asphalt

View CVEN342_6_ASPHALT_CONCRETE_Volumetrics.pdf from CVEN 342 at Texas A&M University. 12/3/2020 • volumetrics AIR OUTLINE • component materials ASPHALT Agg Voids w/Binder • characterization & Study Resources. ... Specific Gravity & Unit Weight Specific Gravity (G) ...

The frame has to be completed with the 11-D0612/A1 cradle, to hold concrete cubes or cylinders, or with the suitable Density basket for use with asphalt specimens and aggregates. Overall dimensions: 400 x 650 x 1000 mm. Weight approx. 25.5 kg. Products.

Bulk specific gravity of concrete materials Portland Cement 3.15 Pozzolan 2.2 to 2.8 Natural Aggregates 2.4 to 2.9 Water 1.0 Bulk specific gravity applies to porous materials. For non-porous materials the specific gravity and bulk specific gravity are the same. BULK SPECIFIC GRAVITY SATURATED SURFACE DRY (Gs(ssd))- The bulk

The difference in specific gravity and performance of asphalt mixture: The specific gravity and performance of each general asphalt mixture, the scenes to be used are summarized below. Dense particle size Asphalt mixture. Specific gravity: 2.35. Performance: The most popular asphalt for paving. Strong, slip resistant, construction is cheap.

of Aggregate Gradations, Theoretical Maximum Specific Gravity, and Bulk Specific Gravity of Asphalt Concrete Mixes 1. Scope: To provide a procedure for comparing the Contractor's quality control (QC) test results with the Department of Transportation's quality assurance (QA) test results for the lot.

There is no specification for bulk specific gravity, but it is used to calculate other specified parameters such as air voids, VMA and VFA. Typical Values. Typical values for bulk specific gravity range from 2.200 to 2.500 depending upon the bulk specific gravity of the aggregate, the asphalt binder content, and the amount of compaction.

342 The specific gravity of all other materials are compared to water as a fraction …

Hot Mix Asphalt Concrete Density, Bulk Specific Gravity, and Permeability . Yu Yan . Field permeability test using NCAT Permeameter were conducted at four project sites before and after the application of fog seal. Due to the fact that it is difficult to estimate the

sb value based upon the effective specific gravity (G se) of the RAP material, determined on the basis of the asphalt binder content and maximum specific gravity (G mm) of the RAP material. The Engineer will approve the estimated asphalt binder absorption value used in the calculation. b. Measure the G. sb. of the RAP aggregate, in accordance with

The influence of cement and fly ash as filler materials on the performance of asphalt concrete can be discussed as follows: (1) It is obvious that the filler can fill the void and increase the density of the mixture. It is resulting in increasing the bulk specific gravity (G ) and reducing the voids in the total mix (VTM). However, the fly ...

1.1 This test method covers the determination of bulk specific gravity and density of specimens of compacted asphalt mixtures. 1.2 This test method should not be used with samples that contain open or interconnecting voids or absorb more than 2.0 % of water by volume, or both, as determined in 11.3 .

The Rice Test for Specific Gravity of Asphalt is a common test that measures the Theoretical Maximum Specific Gravity (G mm) of asphalt specimens. The test is an integral part of the quality assurance of asphalt mixtures. Free and entrapped air is removed from the asphalt sample to prepare for the test.

Specific Gravity of Bitumen EXPERIMENT NO. 9 SPECIFIC GRAVITY TEST ON BITUMINOUS MATERIALS. ASTM DESIGNATION: D 70-76. SPECIFIC GRAVITY Specific Gravity of Bitumen The specific gravity of semi-solid bituminous material, asphalt cements, and soft tar pitches shall be expressed as the ratio of the mass of a given volume of the material at 25 °C to that of an equal …

The specific gravity of the asphalt binder, the specific gravity of the RAP binder from each RAP stockpile, and the specific gravity of the blended RAP binder and binder shall be determined in accordance with AASHTO T 228 (at 77 F). (See Section 7.) As an alternate to determining the specific gravity of the recovered RAP binder

Effective Specific Gravity, G se. Volume measurement includes the volume of the aggregate particle plus the void volume that becomes filled with water during the test soak period minus the volume of the voids that absorb asphalt. Effective specific gravity lies between apparent and bulk specific gravity.

About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators ...

Liquid asphalt has a specific gravity range from 0.98 to 1.02. Typically, a specific gravity of 1.0 is used. This can vary with the type of asphalt and the temperature of the asphalt.

the bulk impregnated specific gravity in the design and control of asphalt paving mixtures (3,4). One limitation of this method, however, is the possible difficulty of removing air bubbles entrapped in the asphalt cement when both coarse and fine aggregates are added to molten asphalt.

BULK SPECIFIC GRAVITY (Gmb) OF COMPACTED HOT MIX ASPHALT (HMA) USING SATURATED SURFACE-DRY SPECIMENS FOP FOR AASHTO T 166 Scope This procedure covers the determination of bulk specific gravity (Gmb) of compacted hot mix asphalt (HMA) using three methods – A, B, and C – in accordance with AASHTO T 166-12.

By conducting trials in triplicate for each of three different testing methods, a measurement of the bulk specific gravity (G ) of compacted hot-mix asphalt concrete (HMAC) cores was obtained. An analysis of the variability between operators was investigated using a total of almost 1,300 test results, using HMAC sampled from six projects in ...

Malpass, G., and Khosla, N. P. Evaluation of Gamma Ray Technology for the Measurement of Bulk Specific Gravity of Compacted Asphalt Concrete. Journal of the Association of Asphalt Paving Technologists, Vol. 70, March 2001, pp. 352 – 367. Google Scholar

achieve low air voids in asphalt concrete is important and that compaction should be accomplished in the construction phase. In analyzing the amount of voids in a mix care must be taken to use the correct procedures for measuring specific gravity of the compacted mix and the individual components. (~) (~)

The bulk specific gravity and moisture content (saturated surface-dry) for specimens are displayed in Fig. 7. When the air void content of the specimen is high, water can easily infiltrate into the internal air void of the specimen. Thus, the smaller the density of asphalt mixture is, the greater its moisture content is.

Presenting asphalt concrete mix design, sometimes the volume of bitumen is specified instead of weight. For the conversion of weight into volume, a specific gravity test of bitumen is important. Read More: Viscosity Test of Bitumen- Absolute, Kinematic, Industrial Viscosity

Newsleter

Back-To-Top
Choose Your Color