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Asphalt

What exactly is asphalt made of?

Asphalt is made of approximately 5% oil/binder and 95% crushed aggregate, of which 10-20% is often recycled (RAP – reclaimed asphalt pavement). Materials engineers design mixes with varying combinations of aggregate sizes/gradations and oil content to achieve various performance [...]

How is asphalt quality measured?

On many large projects that involve oversight by engineers and/or government agencies, specifications can literally fill a thick book. Check out this link to CalTrans specifications. Most smaller private works projects involve no measure of quality by the [...]