percent. The initial in-place air voids are determined by comparing bulk density to theoretical maximum density (TMD) and the final in-place air voids are estimated by comparing bulk density of laboratory compacted sampler to the TMD. The two methods that have been used to measure bulk density of asphalt mixture are physical
Hot Mix Asphalt Testing Technician. U of A cttp; Technicians; Hot Mix Asphalt Testing Technician; The Hot Mix Asphalt Testing Technician course covers the sampling and testing of hot mix asphalt, to include volumetric analysis of compacted specimens, asphalt content, and in-place density.
it is apparent that asphalt mixes must be constructed with an initial air void content below approximately 8 percent, and the final air void content after traffic above approximately 3 percent. The initial air void content is determined by comparing the in-place bulk density to the theoretical maximum density for the mix being evaluated. The
SP/SM10:140905 SPECIFICATION FOR DENSE GRADED AND STONE MASTIC ASPHALTS Page 5 of 30 g) BSI BS EN 1097 Part 8 Tests for Mechanical and Physical Properties of Aggregates - Part 8: Determination of the Polished Stone Value 1.3 Definition of Terms 1.3.1 Asphalt Mix Types
The mass of the asphalt is depending on the density (M = V x d). Each grade of asphalt (bitumen) has a different density and can contain different additives; also the density is dependent on ...
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.
OPSS 1103 Emulsified Asphalt OPSS 1150 Hot Mix Asphalt OPSS 1151 Superpave and Stone Mastic Asphalt Mixtures Ontario Ministry of Transportation Publications MTO Laboratory Testing Manual: LS-261 Preparation of Marshall Specimens LS-262 Bulk Relative Density of …
Compacted samples of the Superpave mix are used to determine the volumetric and mechanical properties during the mix design phase and for quality control/quality assurance during construction. These volumetric properties are then evaluated to select a mix design or to control the mixture quality during production.
Density Void Analysis The following quantities are worked out by carrying out density voids analysis Bulk density ( γ) / specific gravity (G) of the specimen Average specific gravity of aggregates ( Ga) Theoretical maximum specific gravity ( Gt) Percent air voids in the final mix ( VV) Percent air voids in mineral aggregates ( VMA )
passageways through the mix for the entrance of damaging air and water. A low air-void content, on the other hand, can lead to ﬂushing, a condition in which excess asphalt squeezes out of the mix to the surface. Density and void content are directly related. The higher the density, the lower the percentage of voids in the mix, and vice versa.
The following densities should be used for estimating quantities of Hot Mix Asphalt (HMA) material. Table 1: HMA Densities . Material Density Density Values for Scott County Projects Density Values for District 6 . HMA . 145 pcf — — Crushed HMA for use as Subbase : 127 pcf — — Base Course .
Feb 28, 2013· Laboratory Test Procedure for Determining Bulk Specific Gravity of Superpave Gyratory Compacted Specimens ... Hot Mix Asphalt Testing and Inspection w Binder DVD ... Bulk Density and Voids of Fine ...
determination of hot mix asphalt density, in particular the bulk density. The purpose of designing hot mix asphalt is to "determine the optimal proportions of bitumen and crushed aggregates required to produce asphalt" (Asphalt Mix Design Main Roads, 2011). That is, the asphalt …
Density of Asphalt Concrete-How Much Is Needed? ... measure bulk density of asphalt mixture are physical measure ... place bulk density and the TMD for the mix being evaluated. The final in-place air voids are estimated on the basis of the mix design and field quality control testing. The voids obtained
1.1 This test method covers the compaction of asphalt mix into cylindrical specimens using the Superpave Gyratory Compactor (SGC). This standard also refers to the determination of the relative density of the compacted specimens at any point in the compaction process. Compacted specimens are suitable for volumetric, physical property, and mechanical testing.
Dec 16, 2007· Asphalt Technology Ramtech Asphalt Institute Lab Testing Procedure Determination of Bulk Specific Gravity of Asphalt Specimen. ... Simple method to determine specific gravity or particle density ...
Mix Volumetrics MM MM B B A BE A M bulk density of compacted mix V M maximum density of mix V M P binder (asphalt) content M V AV VTM voids in total mix V VV VMA voids in mineral aggregate V VFA voids filled w BE BE A V ith asphalt VV
These are Dense Graded asphalt, Stone Mastic Asphalt and Open Graded Asphalt. Stone mastic asphalt (SMA) is a stone-on-stone like skeletal structure of gap graded aggregate, bonded together by mastic, which actually is higher binder content, filler and fiber to reduce the binder drain.
METHOD OF TEST FOR DETERMINING BULK SPECIFIC GRAVITY AND DENSITY OF COMPACTED HOT MIX ASPHALT A. SCOPE This test provides three methods for determining the bulk specific gravity and density of compacted hot mix asphalt (HMA). Method A measures the bulk specific gravity using paraffin coated briquettes and is used for
T209_short_12.docx Asphalt 15-1 Pub. October 2012 THEORETICAL MAXIMUM SPECIFIC GRAVITY (Gmm) AND DENSITY OF HOT MIX ASPHALT (HMA) PAVING MIXTURES FOP FOR AASHTO T 209 Scope This procedure covers the determination of the maximum specific gravity (Gmm) of uncompacted hot mix asphalt (HMA) paving mixtures in accordance with AASHTO T 209-12.
99-134, Performance of Coarse-Graded Mixes at WesTrack—Premature Rutting, which is avail-able from FHWA or on the Internet at the Turner-Fairbank Highway Research Center homepage at During the team's investigation, its members concluded that the asphalt paving commu-nity needed a good guide on the design of Superpave mixtures.
CALCULATIONS FOR THE MARSHALL MIX DESIGN OF BITUMINOUS MIXTURES 1. ... Gb = 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. Pba = 100 x (2.726 - 2.652) (2.652 x 2.726)
BULK SPECIFIC GRAVITY AND BULK DENSITY OF COMPACTED BITUMINOUS MIXTURES ... 1.1 This procedure covers the determination of bulk specific gravity and bulk density of specimens of compacted bituminous mixtures. ... AASHTO T 275 "Bulk Specific Gravity (Gmb) of Compacted Hot Mix Asphalt (HMA) Using Paraffin-Coated Specimens" shall be used.
Feb 03, 2017· Bitumen(Asphalt) is a mixture of Organic Liquids that are highly Viscous, Black, Sticky, Entirely Soluble in Carbon Disulfide, and composed primarily of highly condensed Polycyclic Aromatic Hydrocarbons. The primary use (70%) of bitumen is in road...
of Hot Mix Asphalt BULK SPECIFIC GRAVITY OR DENSITY The density of the compacted mix is the unit weight of the mixture (the weight of a specific volume of HMA). Density is important because proper density in the finished product is essential for lasting pavement performance. Mix properties are required to be measured in volumetric terms as well as
McAsphalt Industries Limited October 2012 1 Preface This training manual was developed as part of an effort to provide a step-by-step procedure for understanding basic asphalt mixture composition, creating mix designs and recycling processes.
The effect of filler on asphalt cement mastics Dah-yinn Lee Iowa State University Follow this and additional works at:https://lib.dr.iastate.edu/rtd ... Determination of Bulk Density of Filler in Benzene 119 . 1 INTRODUCTION ... replace a certain amount of asphalt in the mix, and that the gradation of filler is of utmost importance (1, 46, 48, 78,
The normal target in-place density on a "dense" hot-mix asphalt pavement is 92 to 93 percent of Gmm (or 7 to 8 percent air voids). If a pavement has low density (usually defined as less than 92 percent of Gmm), the air voids are interconnected and premature pavement distresses can result.
Mar 01, 2013· 1. INTRODUCTION. Pavement projects are typically accompanied by tests for measuring the bulk density of compacted asphalt specimens that are either laboratory-molded or cored from the field .These densities are needed during mix design to assess volumetric properties and serve as basis for selecting the design binder content; they are also needed during construction as a primary …
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