Quiz
Chapter 5
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Questions in this quiz (23)
1Label the gradation curves correctly.
- AGap
- BDense
- COpen
- DOne-Sized
- EGap
- Fdense
- GOpen
- HOne-sided
- IGap
- JDense
- KOne-sided
- LOpen
- MGap
- NDense
- OOne-sized
- POpen
2Five different desirable characteristics of aggregate used in [blank_start]Portland Cement Concrete[blank_end] are: pore structure/porosity, specific gravity absorption, reactivity to chemicals, volume stability - chemical, and volumetric stability - freeze/thaw
- AAsphalt
- BPortland Cement Concrete
3Five different desirable characteristics of aggregate used in [blank_start]Asphalt[blank_end] are: particle shape (angularity), particle surface texture, surface charge, asphalt affinity, and mass stability.
- AAsphalt
- BPortland Cement Concrete
4[blank_start]Coarse Aggregates[blank_end] - particles retained on No. 4 sieve (>4.75mm)
[blank_start]Fine Aggregates[blank_end] - particles passing the No. 4 sieve
[blank_start]Maximum Aggregate Size (MAGs)[blank_end] - smallest sieve through which 100% aggregates pass
[blank_start]Nominal Maximum Aggregate Size (NMAGs)[blank_end] - largest sieve to retain <10% aggregates- ACoarse Aggregates
- BFine Aggregates
- CCoarse Aggregates
- DFine Aggregates
- ENominal Maximum Aggregate Size (NMAGs)
- FMaximum Aggregate Size (MAGs)
- GNominal Maximum Aggregate Size (NMAGs)
- HMaximum Aggregate Size (MAGs)
5In Superpave Mix Design, MAGs are one sieve size [blank_start]larger[blank_end] than NMAGs and NMAGs are one sieve [blank_start]larger[blank_end] than the first sieve to retain > 10% aggregates.
- Alarger
- Bsmaller
- Clarger
- Dsmaller
6The price and availability govern aggregate use.
- ATrue
- BFalse
7In foundations or base course, aggregate is used for structural stability, as a drainage layer, and for frost protection.
- ATrue
- BFalse
8Aggregate in PCC are used to increase the amount of cement paste.
- ATrue
- BFalse
9In asphalt cement, bitumen is a binder that holds the aggregate together.
- ATrue
- BFalse
10PCC has a higher percentage of volume of aggregates than Asphalt cement.
- ATrue
- BFalse
11Absorption is a minimal factor to consider in PCC and asphalt cement performance.
- ATrue
- BFalse
12Absorption is the moisture content in the [blank_start]saturated surface-dry (SSD)[blank_end] condition
- Adry bulk specific gravity
- Bssd bulk specific gravity
- Csaturated surface-dry (SSD)
13Label the different aggregate conditions properly.
- Amoist
- BSSD
- Cbone dry
- Daggregate engulfed in asphalt
- Eair dry
- FMoist
- GSSD
- HBone dry
- Iaggregate engulfed in asphalt
- Jair dry
- KMoist
- LSSD
- MBone dry
- NAir dry
- Oaggregate engulfed in asphalt
- PMoist
- QSSD
- RBone dry
- SAir dry
- TAggregate engulfed in asphalt
- UMoist
- VSSD
- WBone dry
- XAir dry
- YAggregate engulfed in asphalt
14The four types of specific gravity are based on how the aggregate voids are considered for PCC and Asphalt Concrete mix.
- ATrue
- BFalse
15When aggregates are mixed with asphalt binder, a large amount of the water-permeable voids are filled with asphalt.
- ATrue
- BFalse
16Effective specific gravity is used for aggregates mixed with asphalt binder.
- ATrue
- BFalse
17Maximum density results in the maximum amount of voids in the aggregate.
- ATrue
- BFalse
18Gradations help determine the optimal aggregate distribution for maximum density.
- ATrue
- BFalse
19Maximum density gradation curves linearizes the soil gradation curve.
- ATrue
- BFalse
20The [blank_start]0.45[blank_end] power gradation produces the maximum density well-graded gradation curve.
- A0.45
- B0.5
21[blank_start]Well Graded[blank_end] - Maximum density, best stability
[blank_start]One-Sized[blank_end] - good permeability, poor stability
[blank_start]Gap Graded[blank_end] - good permeability, fairly stable
[blank_start]Open-Graded[blank_end] - missing fines, good permeability, poor stability- AOpen-Graded
- BGap Graded
- COn-Sized
- DWell Graded
- EOpen Graded
- FGap Graded
- GOne-Sized
- HWell Graded
- IOpen-Graded
- JGap Graded
- KOne-Sized
- LWell Graded
- MOpen-Graded
- NGap graded
- OOne-Sized
- PWell graded
22High-Density gradations means fewer empty voids, less binder needed, and less cost
- ATrue
- BFalse
23There are two aggregate blend methods:
1) asphalt institute graphical methods
2) iterative trail & error- ATrue
- BFalse
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- Engineering (CE Materials) Quiz on Chapter 5, created by Kiki Medina on 23/02/2019.
- Author
- Kiki Medina
- Language
- English
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