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- TELEGRAM 2022 من 2025 رجوع ) 10:58 B 4 Q1C In a Marshall test, the percentage of asphalt binder by total weight of asphalt mixture is 4.8%. The bulk specifc gravity of aggregate (G)-2.655, the specifc gravity of asphalt binder (G)-1.020, and the density of water (y)-1.000 g/cm'. If the effective asphalt binder content (Pb) is 2.50% by total weight of mixture, and the voids in total mixture (VTM) is 4.0% by total volume of mixture, determine the following properties: a. The bulk specifc gravity of the compacted mixture (3) b. The absorbed asphalt (P) c. The voids in mineral aggregate (VMA) d. The voids filled with asphalt (VFA) R محمد اليوم عند AM 10:57. (25 points) A batch plant mixes 80 tons of asphalt mix with an average mixing cycle time of 1 min. Plant efficiency is 90%. Estimate plant production in ton/hr. Assuming that you have a sufficient number of trucks to haul the asphalt to the job site, can this plant keep up with a paver moving at 2mph and laying down a 20’ lane of a highway job that is to be compacted to 6” thickness with a density of 150 lb/cf?liquid asphalt containing two petroleum-based A. DSR 1. materials laboratory equipment for simulating short- and long- B. elastic term mixture aging type of rheometer for measuring high- & 11. intermediate-temperature binder rheology С. HWT 3. test to assess durability for fine aggregatge 12. material behavior with instantaneous response D. BBR 4. intermediate-temperature mixture performance test E. PAV 5. time-dependent materíal behavior 13. test to assess interparticle friction of fine aggregate test to assess interparticle friction of coarse 6. aggregate F. emulsion 14. low-temperature mixture performance test laboratory equipment for simulating long-term binder 15. type of rheometer for measuring low-temperature 7. binder rheology G. IDEAL-CT aging in the field liquíd asphalt containing one petroleum-based forced draft Н. 8. high-temperature mixture performance test oven 16. material I. CAA laboratory equipment for simulating long-term binder 9. aging during production and…
- Q1) Write a brief note on role of marshall stability and flow values in asphalt mixtures. SIR, PLS GIVE ME PROPER AND CORRECT ANSWER WITH DETAIL. THANKSB کی رجوع ) TELEGRAM 2025 من 2025 Q1D In a Marshall Design procedure for an asphalt mixture, the weight of aggregate (W) is 1200.0 g. and the weight of asphalt binder (W) is 76.0 g. The voids filled with asphalt (VFA) value is determined to be 73.0%, and the effective asphalt content by total weight of mixture (P) is found to be 3.80%. If the bulk specific gravity of aggregate (G) is 2.568, the specific gravity of asphalt binder (G)=1.030, and the density of water (y)-1.000 g/ cm', determine the following properties of the asphalt mixture: 3 a. The absorbed asphalt binder content (P), percent by weight of aggregate b. The effective specifc gravity of the aggregate (G) c. The bulk specife gravity of the compacted asphalt mixture (Gb) d. The voids in mineral aggregate (VMA), percent by total volume of mixture e. The voids in total mixture (VTM), percent by total volume of mixture f. The theoretical maximum specife gravity of the loose mixture (G) 46 17200 84000 محمد اليوم عند AM 10:57…Describe the two types of asphalt production plants. Compare and contrast. Most large projects use HMA (hot mix asphalt) but sometimes we use cold mix asphalt made from cutbacks. Describe how cold mix asphalt works and what type of projects it is typically used. . Describe the steps for ASTM D4402 3. Explain how asphalt mixes get placed in the field. 9. The NCDOT specified a PG64-28 binder for its new roadway project. You are working in a you material testing lab to provide Quality Assurance for this project. What temperature would conduct
- choose the correct answer true false 8-Drum feeder dries the aggregate & blends it with asphalt. * a-T b-F 9-The amounts of aggregate & bituminous materials, determined by weight, are fed into the mixing unit of the plant. * a-T b-F 10- In batch plants asphalt introduced by weight, mixed with aggregates. * a-T b-FStandard Test Method for Ductility of Bituminous Materials 3- Why is the pan greased before pouring the sample4- What causes distortions in the roads?An asphalt sample which is claimed to be AC- 20 is tested by an agency. Which test result will reject the sample O Viscosity at 60•C on original sample = 1850 Poise Ductility at 25C on TFO aged sample = 27 cm Penetration at 25 •C = 51 O Viscosity at 60 C on TFO aged sample = 11250 Poise
- Q3). Explain the followings: 2 filled othy dvouron Loss on ignition, Gel pores, Elongated aggregate, Riffling, Curing concrete, Effect of freezing on fresh Concrete, Collapse slump, ScreedingUsed for concrete pavements, massive foundations, granular beddings/filler and for asphalt concrete mixes with coarser design specifications. A) 3/4 B) 3/8 c) G1 S1% absorbed asphalt by aggregate(Ps2) equal to zero when none of these O bulk Gagg more than eff Gagg O bulk Gagg less than eff Gagg bulk Gagg and eff Gagg are equal