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Road aggregates are essential components in construction, comprising up to 90% in cement concrete pavements. They influence the strength, durability, and overall performance of pavements, making their properties and types critical for effective road construction. The chapter delves into the requirements, classifications, and testing of different types of aggregates to ensure optimal performance.
Chapter 635 sections
Road aggregates are essential components in construction, comprising up to 90% in cement concrete pavements. They influence the strength, durability, and overall performance of pavements, making their properties and types critical for effective road construction. The chapter delves into the requirements, classifications, and testing of different types of aggregates to ensure optimal performance.
Aggregates are crucial for the performance and durability of road pavements.
The suitability of aggregates depends on their strength, toughness, and shape among other properties.
Different types of aggregates include natural, artificial, and recycled, each with specific applications.
The ability of aggregate particles to resist crushing under heavy traffic loads.
Resistance to weathering under conditions like freeze-thaw and wetting-drying cycles.
The distribution of particle sizes within an aggregate sample, affecting compaction and stability.
A measure of the density of the aggregates, typically ranging between 2.5 to 3.0.
A measure of the shape of aggregates, where a lower value indicates better performance in surfaces.
Total Questions
2
Estimated Time
4 min
Passing Score
70%
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