CE 337 FINAL EXAM QUESTIONS AND CORRECT
ANSWERS
Aggregates make up what percent of the PCC mixture by volume? - Answers - 60-75%
Aggregate Sources that are Natural - Answers - 1. Natural Sand
2. Limestone
3. Gravel
Aggregate Sources that are Manufactured - Answers - 1. Recycled Concrete
2. Recycled Asphalt
3.Blast Furnace Slag
A type of rock that forms from cooling of molten magma - Answers - Igneous Rock
Aggregates make up what percent of HMAC mixture by volume? - Answers - 80-90%
Pre-Existing Rocks that are subjected to heat and pressure - Answers - Metamorphic
Rocks
Types of Sedimentary Rocks - Answers - 1. Limestone
2. Sandstone
The two types of Igneous rocks
1. Cools above surface
2. Cools below surface - Answers - 1. Extrusive (Basalt)
2. Intrusive (Granite)
Rocks tha form through compaction, crystallization or cenentation due to heat and
pressure - Answers - Sedimentary Rocks
Why are Geological Origins in aggregates important to understand? - Answers - 1.
Physical Properites
2. Durability Properties
3.Thermal Properties
4. Mechanical Prperties
If the absorption capacity of an aggregate sample is greater than the stock moisture
content of the sample, then: - Answers - Free moisture is zero
The flakiness index of aggregates is a SPECIFIC CRITICAL property for: - Answers -
HMA mixture
SSD is the aggregate specification for which type of mixture? - Answers - PCC
, The freeze-thaw susceptibility of aggregates can be determined by running the... -
Answers - Soundness Test
The three materials/components required for ASR to infect Portland Cement
Concreteare _____(1)______ and ___(2)____, which are typically present in Portland
cement, and __________(3)___________ in the aggregates. - Answers - 1. Moisture
2. Alkalis
3. Reactive Silica
Type of damage leads to pop-outs and "D" cracking of concrete pavements - Answers -
Freeze-Thaw
What are the classified shapes of Rocks? - Answers - 1. Angular
2. Rounded
3. Elongated
4. Flaky
What are the classified Textures of Rocks? - Answers - 1. Smooth
2. Rough
What role does the aggregate shape and texture play in the (i) design of and (ii)
construction with HMAC and PCC mictures? - Answers - The Workability, Flowability,
Interlocking Materials, and Strength
The Soace between particals - Answers - Voids
The empy/filled space within materials - Answers - Pores
A #8 sieve has: - Answers - 8 openings/inch
At which sieve size opening do you differentiate between coarse and fine aggregates? -
Answers - Sieve Size #4
What Aggregate mositure state is considered for HMAC mixture design and production -
Answers - Oven-Dry (Bone Dry)
Smallest Sieve size through which 100% of the sample passes through - Answers -
Maximuim Aggregate Size (MAS)
Smallest sieve size through which 85-95% of the sample passes through - Answers -
Nominal Maximuim Aggregate Size (NMAS)
Well Graded Gradation - Answers - Spil that has all evenly distribution sizes of
aggregate within
ANSWERS
Aggregates make up what percent of the PCC mixture by volume? - Answers - 60-75%
Aggregate Sources that are Natural - Answers - 1. Natural Sand
2. Limestone
3. Gravel
Aggregate Sources that are Manufactured - Answers - 1. Recycled Concrete
2. Recycled Asphalt
3.Blast Furnace Slag
A type of rock that forms from cooling of molten magma - Answers - Igneous Rock
Aggregates make up what percent of HMAC mixture by volume? - Answers - 80-90%
Pre-Existing Rocks that are subjected to heat and pressure - Answers - Metamorphic
Rocks
Types of Sedimentary Rocks - Answers - 1. Limestone
2. Sandstone
The two types of Igneous rocks
1. Cools above surface
2. Cools below surface - Answers - 1. Extrusive (Basalt)
2. Intrusive (Granite)
Rocks tha form through compaction, crystallization or cenentation due to heat and
pressure - Answers - Sedimentary Rocks
Why are Geological Origins in aggregates important to understand? - Answers - 1.
Physical Properites
2. Durability Properties
3.Thermal Properties
4. Mechanical Prperties
If the absorption capacity of an aggregate sample is greater than the stock moisture
content of the sample, then: - Answers - Free moisture is zero
The flakiness index of aggregates is a SPECIFIC CRITICAL property for: - Answers -
HMA mixture
SSD is the aggregate specification for which type of mixture? - Answers - PCC
, The freeze-thaw susceptibility of aggregates can be determined by running the... -
Answers - Soundness Test
The three materials/components required for ASR to infect Portland Cement
Concreteare _____(1)______ and ___(2)____, which are typically present in Portland
cement, and __________(3)___________ in the aggregates. - Answers - 1. Moisture
2. Alkalis
3. Reactive Silica
Type of damage leads to pop-outs and "D" cracking of concrete pavements - Answers -
Freeze-Thaw
What are the classified shapes of Rocks? - Answers - 1. Angular
2. Rounded
3. Elongated
4. Flaky
What are the classified Textures of Rocks? - Answers - 1. Smooth
2. Rough
What role does the aggregate shape and texture play in the (i) design of and (ii)
construction with HMAC and PCC mictures? - Answers - The Workability, Flowability,
Interlocking Materials, and Strength
The Soace between particals - Answers - Voids
The empy/filled space within materials - Answers - Pores
A #8 sieve has: - Answers - 8 openings/inch
At which sieve size opening do you differentiate between coarse and fine aggregates? -
Answers - Sieve Size #4
What Aggregate mositure state is considered for HMAC mixture design and production -
Answers - Oven-Dry (Bone Dry)
Smallest Sieve size through which 100% of the sample passes through - Answers -
Maximuim Aggregate Size (MAS)
Smallest sieve size through which 85-95% of the sample passes through - Answers -
Nominal Maximuim Aggregate Size (NMAS)
Well Graded Gradation - Answers - Spil that has all evenly distribution sizes of
aggregate within
