Materials for Civil and Construction Engineers (4th Edition)
Materials for Civil and Construction Engineers (4th Edition)
4th Edition
ISBN: 9780134320533
Author: Michael S. Mamlouk, John P. Zaniewski
Publisher: PEARSON
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Chapter 9, Problem 9.24QP

(a)

To determine

The air voids for asphalt concrete.

(b)

To determine

The voids in the mineral-aggregate.

(c)

To determine

Voids filled with the asphalt.

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Several types of fillers, such as crushed fines, portland cement, lime, fly ash, and carbon black, can be added to asphalt concrete. Fillers are used to satisfy gradation requirements of materials passing the 0.075 mm sieve, increase stability, improve bond between aggregates and asphalt, or fill the voids and thus reduce the asphalt required.
Answer the question false or. true oxidized asphalt are not used commonly in highway construction
Concrete is required for a building foundation that is placed on a soil with high chloride content. The design calls for a minimum rebar spacing of 100 mm and a concrete cover of 75 mm. Which one of the following sizes is considered an acceptable nominal maximum size for aggregates? O A) 43 mm O B) 39 mm O9 28 mm O D) 49 mm A concrete pavement in Alberta will be exposed to freeze-thaw and de-icing salts during its service life. Which of the following exposure classes best describes the environmental conditions that the concrete will be exposed to? OA F-2 O B) A-2 O D) S-2 Strength of the normal weight concrete depends mainly on: OA) Strength of the aggregate O B) Mixing time OC) Purity of the mixing water O D) Water to cement ratio A fine broom finish is done only for aesthetic purposes. OA) True O B) False O
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