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Asphalt & Cement Test Questions: CVEN 342, Exams of Mechanical Engineering

DeVry University - IllinoisMechanical Engineering

A comprehensive set of questions and answers related to asphalt and cement testing, covering topics such as asphalt binder characterization, asphalt concrete mix design, and portland cement concrete properties. It is a valuable resource for students in civil engineering courses, particularly those studying asphalt and concrete materials.

Typology: Exams

2024/2025

Available from 02/28/2025

wallen-smith
wallen-smith 🇺🇸

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CVEN 342 Asphalt & Cement Test Questions
with 100% Verified solutions| Graded A+
From a fatigue perspective, the asphalt cement content should be minimized. - ✔✔FALSE
Stiffness of asphalt concrete increases with decreasing the frequency of loading - ✔✔FALSE
Performance grading requires that the measured properties of asphalt cements meet a specific
maximum or minimum limit at a specific temperature - ✔✔TRUE
Aging of asphalt cement decreases viscosity - ✔✔FALSE
The objective of rotational viscometer testing is to determine asphalt binder flash point - ✔✔FALSE
All of the following are laboratory tests for asphalt binder characterizations - ✔✔Brookfield Rotational
Viscometer (RV), Dynamic Shear Rheometer (DSR), Bending Beam Rheometer (BBR)
The PG binder specifications, the property that controls mixture resistance to fatigue cracking is -
✔✔G*sin(delta)
All of the following are maximum specifications in the PG binder specification - ✔✔Resistance to
thermal cracking in terms of stiffness, resistance to rutting, resistance to fatigue cracking
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Download Asphalt & Cement Test Questions: CVEN 342 and more Exams Mechanical Engineering in PDF only on Docsity!

CVEN 342 Asphalt & Cement Test Questions

with 100% Verified solutions| Graded A+

From a fatigue perspective, the asphalt cement content should be minimized. - ✔✔FALSE Stiffness of asphalt concrete increases with decreasing the frequency of loading - ✔✔FALSE Performance grading requires that the measured properties of asphalt cements meet a specific maximum or minimum limit at a specific temperature - ✔✔TRUE Aging of asphalt cement decreases viscosity - ✔✔FALSE The objective of rotational viscometer testing is to determine asphalt binder flash point - ✔✔FALSE All of the following are laboratory tests for asphalt binder characterizations - ✔✔Brookfield Rotational Viscometer (RV), Dynamic Shear Rheometer (DSR), Bending Beam Rheometer (BBR) The PG binder specifications, the property that controls mixture resistance to fatigue cracking is - ✔✔G*sin(delta) All of the following are maximum specifications in the PG binder specification - ✔✔Resistance to thermal cracking in terms of stiffness, resistance to rutting, resistance to fatigue cracking

One example of a liquid asphalt is: - ✔✔cutback An asphalt concrete mixture test used to estimate resistance to rutting is: - ✔✔Asphalt Pavement Analyzer (APA) The concept of time-temperature superposition is used to characterize asphalt concrete in terms of a master curve for the following parameter - ✔✔Stiffness The best model of material behavior (relaxation modulus) for asphalt concrete is - ✔✔Generalized Maxwell with a spring in parallel All of the following are important steps in the asphalt concrete production and placement process - ✔✔Controlling aggregate gradation, completing compaction at high temperature, drying aggregate The mechanism of asphalt mixture failure caused by repeated loads is - ✔✔Fatigue All of the following are advantages the superpave volumetric mix design system for asphalt concrete has over traditional mix design systems - ✔✔Inclusion of larger nominal maximum aggregate gradations, measurement of compactibility, inclusion of modified binders High binder contents provide all of the following benefit to asphalt concrete mixtures - ✔✔Durability, Resistance to fatigue cracking, resistance to thermal cracking The PG binder specification has the following main advantage over traditional binder grading systems - ✔✔Characterization at low pavement temperatures

All of the following are important aggregate properties - ✔✔Moisture content, specific gravity, durability All of the following are common component materials in Portland cement concrete: - ✔✔Water, cement, sand Strongest Portland cement - ✔✔Type III An example of a test on hardened Portland cement concrete is - ✔✔f'c All of the following are aggregate tests - ✔✔Soundness, viscosity, Sieve analysis In general, as w/c goes up from 0.4 to 0.6 - ✔✔strength goes down shrinkage and permeability go up The best admixture for Portland cement concrete structures exposed to Freezing and Thawing (F/T) in a moist condition is: - ✔✔Air entraining One of the raw materials used to manufacture Portland cement is: - ✔✔Limestone Which of the following statements regarding the compounds in Portland cement is true - ✔✔the hydration of C3A produces the most heat

Admixtures are used in Portland cement concrete to - ✔✔Increase durability All of the following are true statements about shrinkage in Portland cement concrete: - ✔✔Results before or after set, can occur simultaneously with creep, results from the movement of moisture An example of a test on fresh Portland cement concrete is - ✔✔Slump The price of Portland cement concrete is driven by: - ✔✔Price of admixtures