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Arson

Arson

Arson. So, what is the fascination with fire?. Fire is just plain mesmerizing… How many of you like to watch a fire in a fireplace? …toasting marshmallows in a fire (even if you don’t eat them)?…..How many of you stare at a fire when it is happening?.

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1.11k views • 53 slides
Northridge Earthquake - Concrete Structures

Northridge Earthquake - Concrete Structures

Northridge Earthquake - Concrete Structures. Outline. Introduction Types of Structures Typical Failure Modes Code Development Conclusions. Types of Structures. Parking Garages Large plan areas – number of lateral systems minimized Not limited to a specific type of parking garage:

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1.61k views • 39 slides
Weathering

Weathering

Weathering. Physical Weathering - Geometry. Granular Disintegration - Spalling. Physical Weathering – Geometry (cont.). Joint Block Separation. Physical Weathering – Geometry (cont.). Unloading produces joints parallel to earth’s surface. I-84, Carmel, NY.

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621 views • 34 slides
Chapter Eighteen Part I– Fire Investigations

Chapter Eighteen Part I– Fire Investigations

Chapter Eighteen Part I– Fire Investigations. FRSC 8104 Criminalistics II Professor Bensley. FRSC 8104 – Chapter 18 Objectives. After studying this chapter, the student should be able to:  Recognize the basic components required to have a fire

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416 views • 31 slides
Salt-Crystal Growth

Salt-Crystal Growth

Salt-Crystal Growth. Salt Crystal Growth. Definition: Salt crystallization ( haloclasty ) Physical Weathering (rocks break down under environmental conditions eg . heat, pressure or ice) Involves some chemical weathering (hydration) Formation of salt crystals

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785 views • 11 slides
Spalling

Spalling

Spalling . Jordan Hunter Marissa Kuhns Cole Yazujian. What is the Myth?. Spalling: breaking off of pieces of the surface of concrete, cement or brick due to intense heat. Brown stains around the spall indicate the use of a fire accelerant .

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205 views • 5 slides
Flexural cracks First spalling & shear cracks Extensive cracks & spalling

Flexural cracks First spalling & shear cracks Extensive cracks & spalling

Damage States Ref: seismic damage states and performance parameters for bridge columns, Ashkan Vosooghi and M. Saiid Saiidi, U. of Nevada, Reno, ACI Special Publications, in Review. Flexural cracks First spalling & shear cracks Extensive cracks & spalling Lateral & longitudinal bars visible

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383 views • 4 slides

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