CVEN 342 Final Test Bank

What type of asphalt degradation is most likely to occur in young asphalt under consistent loading?

b. Fatigue cracking

What is the effect of excessive moisture in aggregates used for asphalt?

a. Decreases binder and aggregate bonds

Where is a masonry wall most likely to fail under compressive loads?

b. Through mortar bed joints (maybe a idk)

What is the difference between stock mix design and SSD mix design for concrete?

a. Stock mix design is a function of daily environmental conditions affecting the moisture content of the aggregate stockpiles

Why does longitudinal tensile loading strength in wood increase the least with decreases in moisture content (MC)?

a. Longitudinal tensile failure occurs due to transverse rupture of cell walls

What is the primary cause of fatigue cracking in asphalt concrete pavements?

a. Repeated traffic loading over time

Which of the following is a material property for hardened concrete?

c. Strain (closest answer, all are basically wrong)

Which of the following relationships is true about asphalt absorption?

a. As the effective asphalt content decreases, asphalt absorption increases.

During the construction phase of asphalt pavement, why might you have less time to compact a thin pavement rather than a thick pavement?

a. The thinner pavement cools more rapidly.

Which of the following are true about performance specifications and prescriptive specifications in relation to concrete mixture design?

By percentage, what are the two primary hydration products for Portland cement?

Which of the following is the correct order from highest to lowest in terms of average compressive strength at 28 days for mortar?

Which of the following is the correct order for the mechanical properties of wood?

: You are laying concrete in New York during the winter season, what additive should you add to your mix design to help during construction?

Which of the following is a way to reduce creeping in concrete?

Which specific gravity contains the water permeable and impermeable pores?

Long-term aging of asphalt binders is primarily caused by

Increasing the lime content in mortar generally improves:

A Superpave asphalt mixture has the following properties: Gsb=2.680, Gse=2.720, Gmb=2.410, Gb=1.030, and the total asphalt content by mass = 5.6%. Find Pbe.

A plant produces aggregate with excessive fines due to overcrushing. How does this simultaneously affect asphalt and concrete mixtures?

A contractor uses type S mortal with standard CMU blocks. After the first freeze-thaw season, some blocks show face spalling near the joints. What is most likely the cause?

OSB roof sheathing made from wood with high hemicellulose content begins to show edge swelling after a humid summer. What property of the wood most directly explains this?

Which aggregate property is most critical for resisting abrasion in high traffic pavements?

Why is a well graded aggregate typically preferred in asphalt mixtures?

What happens to asphalt mixture durability if air voids are too low?

On a hot day in College Station, a contractor notices freshly placed concrete is stiff and difficult to work with. To fix this quickly, workers add extra water at the site. What is the most likely long term effect of this decision?

Which of the following best explains why concrete gains strength over time after placement?

Why is controlling the w/c ratio critical in concrete design?

What is the primary purpose of vibration during concrete placement?

What is the main cause of drying shrinkage in concrete?

What is the primary function of mortar in masonry construction?

Which of the following conditions would most likely increase the risk of creep in concrete over time?

Which statement best describes how aggregate properties affect concrete and asphalt mixture performance?

Why is the asphalt binder content important in asphalt mixture design?

Why is water to cement ratio (w/c) considered to be one of the most important volumetric properties in concrete mix design?

You want to use Portland cement concrete in an area where it would be susceptible to ASR and sulfate attack. Which type of cement would be best to use in this scenario and why?

Why is residential construction designed using deformation limits rather than strength limits?

What is the main difference in the ingredients and goals for mortar and Portland cement concrete?

What differences are there in long-term deformation in asphalt pavement and concrete pavement under sustained loading?

If a piece of wood is loaded perpendicular to the grain (radial) in compression, what failure will occur?

Two mixes are designed for placement in a high temperature environment. Mix 1 has a relatively high w/c ratio with a retarding admixture. Mix 2 has a relatively low w/c ratio with a superplasticizer. Both mixes have about the same slump. What difference would most likely occur during placement?

A brick foundation is made using Type M and a mortar that was intentionally designed with a higher compressive strength than the bricks. The foundation carries sustained loads. What outcome is most likely to occur over a long-period of time?

Two concretes have identical compressive strength, but one has a significantly higher density. What is the biggest difference in behavior?

A concrete mix is redesigned to improve durability, and the water-cement ratio is lowered while also improving curing. However, there is found to be reduced workability and slight segregation during placement. Which explains the effect of these changes on both fresh and hardened properties?

A pavement experiences repeated freeze-thaw cycles and begins to show cracking that allows water infiltration. Over time, raveling and stripping take place. Which answer explains how these distresses are interacting?

A uniformly graded aggregate is used for a high-traffic asphalt pavement layer to improve drainage. After construction, the pavement exhibits early rutting and instability. Which is the underlying cause?

A structural timber beam with tensile loading is parallel to the grain and performs well. However, when a similar load is applied perpendicular to the grain, sudden failure occurs at much lower stress. Why does this occur?

A batch of clay bricks shows good compressive strength but fails during durability testing due to freeze-thaw damage. The saturation coefficient is relatively high. Why does this occur?

A mix has low VMA but meets AV requirements. What is the MOST likely issue?

Which change will increase VMA MOST

Which combination of properties MOST improves bond strength between brick and mortar?

Two concretes have the same w/c ratio but different strengths. What is the MOST likely reason?

Which mechanism primarily drives drying shrinkage in concrete?

Why are rounded aggregates preferred in concrete but angular aggregates in asphalt?

If aggregate absorption is high and not accounted for in mix design, what is the MOST likely effect?

Why does wood shrink only below the fiber saturation point (FSP)?

Why is using mortar stronger than the masonry unit NOT recommended?

Which factor MOST contributes to the anisotropic mechanical behavior of wood?

Which aggregate property most directly influences the bond strength between aggregate and cement paste in concrete?

A well-graded aggregate blend is preferred in concrete and asphalt mixtures because it:

During asphalt mixture design, increasing asphalt binder content beyond the optimum value will MOST likely result in:

Which admixture is MOST commonly used to improve workability without increasing water content?

Which order of aggregate specific gravities is true?

For an asphalt concrete mix, given that SGmb= 2.254 and SGmm=2.670, what is the percent air voids?

You notice an asphalt road with thermal cracking; this is most likely caused by…

What is the Primary Purpose of well-graded aggregates in asphalt or concrete mixtures?

In asphalt mixture design, what does VMA represent?

Which compound in Portland cement is primarily responsible for early strength gain?

Which factor has the greatest influence on the compressive strength of hardened concrete?

What is the primary function of a water-reducing admixture?

What causes flushing to occur in asphalt pavements?

Which of the following is most directly related to the strength of an aggregate?

What does “well-graded” aggregate mean?

What is the main goal of asphalt mixture design?

What does a Performance Grade (PG) binder classification primarily indicate?

Asphalt concrete is best described as which type of material behavior?

What is a common cause of asphalt pavement deterioration over time?

What happens during cement hydration?

What is the primary purpose of adding a water-reducing admixture?

Which property is most commonly used to measure hardened concrete performance?

What is creep in concrete?

What is the definition of Voids in Mineral Aggregate (VMA)

Which of the following is a major component of Asphalt Cement?

Which type of concrete would you use to fill a pothole left after a buckling of a cement highway so that it is ready to use as quickly as possible?

What would be the effect on stability of using an aggregate with a large amount of fines?

Which of the following is NOT a physical property of an aggregate?

Which of the following wood strength relationships is true?

What is the most commonly used masonry type?

Which of the following changes would generally increase the strength of a concrete sample?

Which cement type is the strongest in high early strength?

Which of these is not a source of rutting?

What percent is the fiber saturation point (FSP) at?

Which factor most directly affects the workability of fresh concrete?

Which property is primarily used to evaluate the strength of hardened concrete?

Which parameter represents the volume of void spaces in compacted concrete?

How does a concrete truck avoid segregation?

What mineral admixture would you want to add for long term durability?

In a Superpave mix design, a student calculates a negative value for air voids for a compacted HMA sample. Which of the following most likely caused this result?

Which aggregate characteristic most directly improves interparticle friction in asphalt concrete?

Which of the following factors has the greatest influence on the durability and workability of mortar in masonry construction?