Microstructure of Concrete affected by Delayed Ettringite Formation (DEF) Delayed ettringite formation is a type of internal sulfate attack in concrete, which is common in many precast concrete elements that have been heat-treated beyond a certain temperature and have suppressed the normal ettringit...

Lapped sections of concretes showing various aggregates Concrete containing natural siliceous natural sand fine aggregate and siliceous gravel coarse aggregate Concrete containing crushed limestone coarse aggregate and natural siliceous sand fine aggregate Back to Photo Gallery ...

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Projects Quality Assurance Evaluation of aggregates (gravel, crushed stone, natural sand, manufactured sand, lightweight, heavyweight) for physical and chemical soundness in concrete, mortar, fill materials, etc. Composition and overall condition of concrete from a structure Composition and conditio...

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