Test Temperature: 25.0 C. Found inside – Page 55With one additional step this procedure will also yield values for apparent specific gravity , bulk specific gravity ... required is volume of voids or whether the full test capabilities of the procedures are utilized , test results are ... The best available maximum theoretical specific gravity of the mixture is 2.428. 705, PTM No. 3. 0000062700 00000 n
account asphalt, not water absorption ;'1 the mixture. Only applicable for hot-mix paving mixture Asphalt cement have to be used Maximum size of … The bulk specific gravity of the blended aggregate is then used in the You can also learn more about the SGA-5R Rice Shaker for Specific Gravity & Asphalt Rice Test by viewing our video below. The most convenient procedure for allowing for absorption is by use of ASTM test method 02041, "Theoretical Maximum Specific Gravity of Bituminous Paving Mixtures". 4. The best available Gmm is 2.412 for a sublot of HMA. 3. Perform stability tests on the specimens. 5. T 84, Specific Gravity and Absorption of Fine Aggregate T85, Specific Gravity and Absorption of Coarse Aggregate T 166, Bulk Specific Gravity of Compacted Hot Mix Asphalt (HMA) Using Saturated Surface-Dry Specimens T 176, Plastic Fines in Graded Aggregates and Soils by Use of the Sand Equivalent Test Testing Rates . meter to fill it about three-fourths of its capacity. 0000004940 00000 n
Calculation using bulk and effective gravities determined in sections 3.2. and 3.3. and asphalt specific gravity from Table 1. Specific gravity (G S) 2.65 2.61 Example Calculation: WP = 37.40 g, WPS = 63.49 g, WB = 153.61 g, WA =137.37 g WO = 63.49 – 37.40 = 26.09 g … Aggregate bulk specific gravity may be one of the least appreciated factors affecting the performance of asphalt pavements. Found inside – Page 19Again , although 122 samples of Montezuma refined asphalt were tested in 1915 , not a single test was made under the ... Although all samples were tested for specific gravity , no one of the 36 samples of paraffine residue submitted by ... Calculate the specific gravity to the nearest third decimal as follows: Where, A = mass of Pycnometer (+ stopper) = 22.277 g B = mass of Pycnometer filled with water = 74.151 g C = mass of Pycnometer partially filled with asphalt = 55.445 g D = mass of Pycnometer + asphalt + water = 74.628 g. OBSERVATIONS & RESULTS. The following test administration options apply to the Construction Materials Testing: Asphalt - Level I credential where checked: Utah Water Research Laboratory, Utah State University. Emulsions and cutbacks are tested using a producer-submitted 1 quart (1 Liter) sample, which is accompanied by a complete test report. Calculate the specific gravity to the nearest third decimal as follows: Where, In addition to the agitation device and other basic tools used with this test such as a vacuum container, thermometer, vacuum gauge, and bleeder valve, there are other products used with both set-up options, and some are highlighted below. AASHTO T 85 — Standard Method of Test for Specific Gravity and Absorption of Coarse ... Report the asphalt content of the RAP and/or RAS sample to 0.1% (for . BULK SPECIFIC GRAVITY (G. mb) OF COMPACTED HOT MIX ASPHALT (HMA) USING SATURATED SURFACE-DRY SPECIMENS . Dry and weigh using the same technique and timing as that employed in # 2. 734-1793 B Nuclear Compaction Report For Base Aggregate 734-1825 Unit Weight and Specific Gravity W/S 734-1825 C Bulk Density “Unit Weight” Measure Calibration 734-3468 B Maximum Density of Aggregate Base Material Asphalt Concrete Pavement (ACP) ODOT Form Number Description 734-1793 A 734-1793 AR Performing Organization Report No. air voids and the effective asphalt content. Found inside – Page 78There are a number of such tests , among which may be mentioned specific gravity , melting point , solubility in carbon disulphide , fixed carbon , etc. For example , the specific gravity of a bituminous road or paving material is one ... 1.2 This method includes two different methods of determining the roadway density. TEST SPECIMENS This method of test determines the theoretical maximum specific gravity and density of uncompacted bituminous paving mixtures at 25ᵒC. A procedure for determining the test maximum density of asphalt concrete in a field laboratory was developed and then tried on several paving projects. (4) Bulk Specific Gravity of Compacted Samples Report Only; Ndes=30 Maximum Theoretical Specific Gravity Report Only % Air Voids in Compacted Dense and Rice Shaker for Specific Gravity & Asphalt Rice Test, AutoRice™ Digital Manometer/Controller System, Specific Gravity (relative density) Bench, Marshall Test Method: Everything You Need to Know, Paving the Way to an Asphalt Technician Certification, Concrete and Asphalt Core Drilling: When, Why, and How, Either a vacuum pump or water aspirator is needed to effectively evacuate air from the container to a residual pressure of 4.0kPa (30mm of Hg) or less. Place the Pycnometer in the beaker and press the stopper firmly in place. The whole assembly is heated at a rate of 9 °F per min. 4. Test Results. A. Guinn, P. S. Khandhal, and R. L. Dunning. Gmm can also be mathematically calculated by the following equation: Gmm – 100 / (Ps / Gse + Pb / Gb) The most convenient procedure for allowing for absorption is by use of ASTM test method 02041, "Theoretical Maximum Specific Gravity of Bituminous Paving Mixtures". in aggregate specific gravity affect the analysis of asphalt concrete. The bulk specific gravity of aggregates and the specific gravity of the asphalt cement are determined. Calculate the % compaction for a test location if the wet density reading is 142.6 pcf. 0000002851 00000 n
Found inside – Page 78Reports of the Committee on Road Materials : Submitting proposed standard definitions of terms for road materials ; Minority Report . XIII , 448 ( 1913 ) . Discussion , 454 . Submitting proposed : test for apparent specific gravity of ... These standards define density as “the mass of a cubic meter of the material at 25°C (77°F) in SI units,” and specific gravity as “the ratio of a given mass of material at 25°C (77°F) to the mass of an equal volume of water at the same temperature.” Many state DOTs also have state-specific test procedures, in addition to the ASTM and AASHTO standards. 8.1.1. Normal Test Reporting Time Normal test reporting time is 4 hours. For the conversion of weight into volume, a specific gravity test of bitumen is important. Again, these procedures are described in Reference To calculate specific gravity for any material, we have to use water. Manual of Test Procedures, February 2021. The Rice Test compares the mass of the sample to its volume, excluding the air voids, by measuring the dry mass of the loose HMA sample either at the beginning of the test or at the end of the test, after it has been dried. The 151h hydrometer reads the specific gravity of the suspension and has a capacity of about 45g of dry soil in the 1,000ml liquid solution. Found inside – Page 121APPENDIX B TESTING EMULSIFIED ASPHALT NOTE : ASTM D 244 is reproduced here because it includes the Float Test in Examination of ... D 3289 , Test for Specific Gravity of SemiSolid and Solid Bituminous Materials by WATER CONTENT 3. Calculate the percentage of voids, and percent voids filled with Bitumen in each specimen. 13. Gmm is the Theoretical Maximum Specific Gravity of an asphalt mixture, sometimes referred to as “Rice’s gravity.” The Gmm of a field sample is typically determined by AASHTO T 209 to calculate the asphalt mix volumetrics. The vehicle shall be stationary, a vertical plane tangential to the side of the vehicle and facing outwards from the circle shall be established by marking a … Found inside – Page 6Results are available in 12 hours , to 0.1-0.2 on binder content . 62. RICE , JAMES M. " New Test Method for Direct Measurement of Maximum Density of Bituminous Mixtures . " Crushed Stone Journal , Vol . 28 , No. 3 , pp . Thus it is possible for a quantitative extraction of mineral impurity in bitumen. Micro Texture Report Form: 05/2016: Guidelines / Manuals Latest Edition File Format; ... Test Method NY401-02C (Asphalt Release Agent) 06/2003: Test Method NY402-01F ... Test Method NY703-05P,G (Specific Gravity and Absoption of Fine Aggregate) 02/1993: Test … 0000002812 00000 n
nuclear density gauge. Measure the G. sb. CALCULATION 4. The value of specific gravity will increase if the quantity of mineral impurities is more. Technical Report Documentation Page 1. Report Gmb value to three decimal places (0.001). 11. 5. Determine the specific gravity of fines or super fines used as a mineral filler or additional stabilizer in SMA designs according to AASHTO T 100. From August 27 to … A Job Correction Factor of - 1.2 pcf has been established for an A. R. DOT project. This report discusses and compares test results and void calculations when dif- ... bulk-impregnated specific gravity for asphalt mixture prepared with the two absorptive aggregates and compared with the maximum theoretical specific grav-ity determined from ASTM D 2041. Theoretical Maximum Specific Gravity – Pavement Interactive Fig 3: F.A Specifiv gravity sample and Pycnometer 14. Allow the Pycnometer and its contents to cool to ambient temperature for a period of not less than 40 minutes, and weigh with, the stopper to the nearest 1 mg. Some will be more time and labor-intensive, but more economical, while those that are automated can be significantly more time and labor-efficient. I. g is used in the equation for Froude number. 29. The vehicle shall be tested in accordance with the drive-in test method described in point 8.1.2. Bitumen binder has specific gravity in the range of 0.97 to 1.02. Usually the test consist of a (3/8) in dia. The bulk specific gravity of the coarse and fine aggregate fractions are used to determine the bulk specific gravity of the aggregate blend of hot mix asphalt (HMA). REPORT 3.1 VMA is computed as follows: G G 4.1.1 Each VMA to the nearest 0.01%. ASPHALT DURABILITY. SCOPE . Although high quality mixtures can be made with aggregates having a wide range in bulk specific gravity values, precisely determining the bulk specific gravity (Gsb) is critical to setting the optimum asphalt content of every mix design. Gsb = bulk specific gravity of aggregate. 12. Found inside – Page 249Review of relationships between modified asphalt properties and pavement performance Report No. ... Evaluation of test equipment for determination of fine aggregate specific gravity and absorption Transportation Research Record: Journal ... To view a specific document, click on the appropriate Bid/Proposal attachment. The test results also allow calculation of bitumen absorption by mineral aggregates. VI. 0000083635 00000 n
Bulk specific gravity of compacted specimens G e G se Effective specific gravity of the combined aggregates G r G mm Theoretical maximum specific gravity G rc G mm Theoretical maximum specific gravity corrected for water absorption during test G s G b Specific gravity of the asphalt binder determined at 77°F (25°C) G t G max-theo This is why we are using 0.79 g/cc (specific gravity of kerosene) in our calculation (specific gravity … Found inside – Page 7The apparatus for cement testing consists of : Riehl briquette machine , Vicat needle , Gilmore needles , gang molds , damp closet , specific gravity flasks , sand scales , etc. That for bituminous materials : 1 analytical balance ... Calculations A. Making of asphalt briquettes Refer to SANS 3001-AS1 for the test method 3.1. • AASHTO T 209 Theoretical Maximum Specific Gravity (Gmm) and Density of Asphalt Mixtures • AASHTO T 312 Preparing and Determining the Density of Asphalt Mixture Specimens by Means of the Superpave Gyratory Compactor 2.2. nuclear density gauge. For more information regarding the thermal conductivity of this example, TPS was used to conduct measurements on asphalt, and the results can be viewed in an application page . Test methods AASHTO T 209 and ASTM D2041 determine theoretical maximum specific gravity and density values used to calculate air voids in the compacted mix and establish targets … D = mass of Pycnometer + asphalt + water = 74.628 g. The experiment has been performed successfully and the specific gravity determined is 1.015 which is in the range of 0.97 to 1.02. For good pavement construction, the range of specific gravity of bitumen should be 0.97-1.10. TRB's National Cooperative Highway Research Program (NCHRP) Report 752: Improved Mix Design, Evaluation, and Materials Management Practices for Hot Mix Asphalt with High Reclaimed Asphalt Pavement Content describes proposed revisions to the ... James G. Speight PhD, DSC, in Asphalt Materials Science and Technology, 2016 10.3.1 Asphalt Binders. Two different set-up scenarios for using the Rice Shaker are shown below: the basic Asphalt Rice Test set-up which is more time-consuming and requires manual interaction from the operator, and the automated set-up using the AutoRice™ Digital Manometer/Controller System with PumpSaver™ Air-Drier that reduces operator and test time, and delivers results directly to the computer. Found inside – Page 51The routine tests which are made on these materials are as follows : For Asphalt . — The melting point , the loss in weight when 50 grams are heated at 325 ° F. for 7 hours , and the solubility in cold carbon ... Specific gravity . trailer
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