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Construction Material and Testing > Properties of Materials > Flashcards

Properties of Materials Flashcards

1
Q

It is the ratio of the mass of the material and its volume

A

Density

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2
Q

It is the ratio of volume of pores to the volume of the material

A

Porosity

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3
Q

Property of a material which is to withsand against the combined action of atmospheric and others factors

A

Durability

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4
Q

It is equal to the product of density of material and standard gravity due to acceleration

A

Specific Weight

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5
Q

It is the ratio of the density of a substance to the density of a reference substance

A

Specific Gravity

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6
Q

The capacity of a material to absorb and retain water

A

Water Absorption

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7
Q

The ability of a material to permit water through

A

Water Permeability

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8
Q

The ability to withstand fire without changing its shape and other properties

A

Fire Resistance

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9
Q

It is the property of a material to withstand agains all atmospheric actions without losing its strength and shape

A

Weathering Ressistance

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10
Q

__________ are slowly applied such that no shock or vibration is generated in the structure.

A

Static Loads

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11
Q

Loads that remain in place for an extended period

A

Dead Load/s

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12
Q

Loads that generate a shock or vibraion in the structure

A

Dynamic Load/s

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13
Q

Types of Dynamic Loads

A

Periodic, Random and Transient

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14
Q

Harmonic or Sinusoidal Load, repeats itself with time

A

Periodic

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15
Q

The load patttern never repeats

A

Random

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16
Q

An impulse load that is applied over a short time interval

A

Transient

17
Q

Relationship between the amount of force applied to a member and its deformation

A

Linear Relationship

18
Q

Materials deform in response to loads or forces. In 1678, Robert Hooke published the first findings that documented a linear relationship between the amount of force applied to a member and its deformation. The amount of deformation is proportionɛal to the properties of the material and its dimensions. The effect of the dimensions can be normalized. Dividing the force by the cross-sectional area of the specimen normalizes the effect of the loaded

A
18
Q

What year did Robert Hooke published the first findings that documented a linear relationship between the amount of force applied to a member and its deformation

A

1678

19
Q

Who published the first findings that documented a linear relationship between the amount of force applied to a member and its deformation

A

Robert Hooke

20
Q

It is a property of a material wherein when the load is removed the material must return to its original shape

A

Elastic Behavior

21
Q

Ratio of the lateral strain to the axial strain

A

Poisson’s Ratio

22
Q

Stress-Strain relations follows a straight line

A

Linear Material

23
Q

Return to its original shape when load is removed and reacts instantenously to changes in load

A

Elastic Material

24
Q

The slope of the tangent of the stress- strain curve at the origin

A

Initial Tangent Modulus

25
Q

The slope of the tangent at a point on the stress-strain curve

A

Tangent Modulus

26
Q

The slope of a chord drawn between the origin and an arbitrary point on the stress-strain curve

A

Secant Modulus

27
Q

The slope of a chord drawn between the origin and an arbitrary point on the stress-strain curve

A

Chord Modulus

28
Q

Type of material behavior that combines both elastic and plastic properties. When a material is subjected to a force, it first undergoes elastic deformation, which means that it deforms temporarily and will return to its original shape once the force is removed. However, if the force is large enough, the material will undergo plastic deformation, which means that it deforms permanently even after the force is removed.

A

Elastoplastic Behavior

29
Q

Type of material behavior that combines both viscous (fluid-like) and elastic (solid-like) properties. When a viscoelastic material is subjected to a force, it exhibits a time-dependent response. This means that the material will deform under the applied force and will continue to deform over time, even if the force is removed.

A

ViscoElastic Behavior

Construction Material and Testing (1 decks)

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