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Collection of fly ash specimens

Phase 1. Collection of fly ash specimens. Collected 20 different fly ashes (13 Class C and 7 Class F) 15 of them ( 9 class C ashes and 6 class F ashes) are currently on the INDOT list of approved pozzolanic materials

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Collection of fly ash specimens

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  1. Phase 1 Collection of fly ash specimens • Collected 20 different fly ashes (13 Class C and 7 Class F) • 15 of them ( 9 class C ashes and 6 class F ashes) are currently on the INDOT list of approved pozzolanic materials • A database summarizing the physical and chemical characteristics of the collected fly ashes and the impact of these properties on the behavior of binders would benefit the engineers, contractors and concrete producers. Prasanth Tanikella - Purdue University

  2. Phase 1 Methods of Examination • Total chemical analysis and loss-on ignition according to ASTM C 311 • Soluble sulfates and soluble alkalis using ion chromatography and atomic absorption spectroscopy • Particle size distribution using laser particle size analyzer at the laboratory of Boral MaterialsCheck the name please) Technology Inc, Purdue’s particle size analyzer and sedimentation method • Content of magnetic particles using a teflon coated bar magnet • Crystalline components using qualitative X-ray diffraction • Morphologies of particles using scanning electron microscopy • Strength activity index with portland cement according to ASTM C 311 Prasanth Tanikella - Purdue University

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