Concrete
Concrete
Concrete
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Process Control Testing<br />
‣Aggregate quality tests – deleterious, flat/elongated<br />
• Reject aggregate when tw<br />
wo consecutive tests fail<br />
‣Combined aggregate gradation<br />
• Adjust aggregate proport<br />
ions when tests t fail<br />
• Reject aggregate if adjustment not possible<br />
‣Air content & concrete temperature<br />
• Test every truck load if two tests for a truckload fails<br />
‣Hand-finishing at edges<br />
• Limited to 25% of the edge per slab panel
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