subject
Engineering, 13.03.2020 02:26 ewitskarleigh814

An asphalt producer proposes an asphalt with the following properties for this rest area: o Maximum specific gravity of the asphalt mixture: 2.535 o Bulk specific gravity of the asphalt mixture at Ndes: 2.46 o Bulk specific gravity of the asphalt mixture at Nmax: 2.49 o Bulk specific gravity of the aggregate blend: 2.68 o Effective specific gravity of the aggregate blend: 2.71 o Apparent specific gravity of the aggregate blend: 2.75 o Maximum aggregate size of the aggregate blend: 19.0 mm o Nominal maximum aggregate size of the aggregate blend: 12.5 mm o Specific gravity of the binder: 1.03 o Mass percentage solids: 94% o Mass percentage dust (< #200) in the aggregates: 10.0% Is this asphalt in agreement with Superpave MoDOT specs for the volume of air, the voids in the mineral aggregates, the voids filled with asphalt and the dust-to-binder ratio? Do you expect any performance problems?

ansver
Answers: 3

Another question on Engineering

question
Engineering, 04.07.2019 18:10
An air conditioning system consist of a 5 cm diameter pipe, operating at a pressure of 200 kpa. the air initially enters the pipe at 15°c with a velocity of 20 m/s and relative humidity of 80%. if the heat supply throughout the process is 960 w, determine the relative humidity and the temperature at the outlet
Answers: 3
question
Engineering, 04.07.2019 18:10
Fluids at rest possess no flow energy. a)- true b)- false
Answers: 3
question
Engineering, 04.07.2019 18:10
For the closed feedwater heater below, feedwater enters state 3 at a pressure of 2000 psia and temperature of 420 °f at a rate of ix10 ibhr. the feedwat extracted steam enters state 1 at a pressure of 1000 psia and enthalpy of 1500 btu/lbm. the extracted er leaves at an enthalpy of 528.7 btu/lbm steam leaves as a saturated liquid. (16) a) determine the mass flow rate of the extraction steam used to heat the feedwater (10) b) determine the terminal temperature difference of the closed feedwater heater
Answers: 3
question
Engineering, 04.07.2019 18:10
Awall of 0.5m thickness is to be constructed from a material which has average thermal conductivity of 1.4 w/mk. the wall is to be insulated with a material having an average thermal conductivity of 0.35 w/mk so that heat loss per square meter shall not exceed 1450 w. assume inner wall surface temperature of 1200°c and outer surface temperature of the insulation to be 15°c. calculate the thickness of insulation required.
Answers: 3
You know the right answer?
An asphalt producer proposes an asphalt with the following properties for this rest area: o Maximum...
Questions
question
Mathematics, 19.01.2020 02:31
question
Mathematics, 19.01.2020 02:31
question
Mathematics, 19.01.2020 02:31