Materials In Constructions Flashcards

1
Q

Sediments or other unconsolidated accumulation of solid particles produced by the physical and chemical disintegration of rocks.

A

Soil

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2
Q

What is AASHTO?

A

American Association of State Highway and Transportation Officials

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3
Q

What is ANSI?

A

American National Standards Institute

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4
Q

What is ASTM

A

American Society for Testing Materials

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5
Q

The moisture content at which a soil changes from the liquid state to the plastic state, measured when soil in a shallow dish flows to close a 12.5 mm groove after 25 drops from 1cm.

A

Liquid Limit (LL)

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6
Q

The water content at which a silt or clay material will just begin to crumble.

A

Plastic Limit (PL)

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7
Q

The liquid limit minus the plastic limit.

A

Plasticity Index

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8
Q

A constructed layer or facing of stone, placed to prevent erosion, scouring or sloughing of a structure or embankment.

A

Riprap

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9
Q

A wire-enclosed riprap.

A

Gabion

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10
Q

A construction materials consisting of synthetic components made for use with or within earth materials.

A

Geosynthethics

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11
Q

Are the most common geosynthetics, consist of woven or nonwoven fabric made from polymeric materials.

A

Geotextiles

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12
Q

Are continuous polymeric sheets that are impermeable.

A

Geomembranes

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13
Q

Combination of geosynthethic components, usually sheet or edge drains consisting of a prefabricated core to which a geotextile filter is bonded.

A

Geocomposites

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14
Q

Consist of a continuous extrusion of polymeric ribs.

A

Geonets

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15
Q

A three-dimensional prefabricated polymeric systems ranging from 100mm to 200 mm.

A

Geocells

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16
Q

A layer of sand with uniform size particles, area must be large enough to prevent the termite from moving through it or prevents its use in “tunnel” construction.

A

Termite resistant Sand

17
Q

Steel mesh product that is fine enough to keep even tiny termites from passing through it.

A

Termite Mesh

18
Q

Physically separate the home from the distance termites can travel from their colony

A

Home Construction

19
Q

The use of termite resistant building products, from drywall to floor joists treated with borates before use in home construction.

A

Pre-Construction Chemical Barriers

20
Q

Applied by rodding or trenching around the base of foundations, plumbing, utility entrances, expansion joints, and where two slabs will join, applying 4 gallons of termiticide per 10 linear feet.

A

Vertical Barriers

21
Q

Applying one gallon of termiticide per 10 square feet, usually by coarse spray at low pressure

A

Horizontal Barriers

22
Q

This involves drilling through the slab floor and injecting termicides into the soil at regular intervals.

A

Slab Treatment

23
Q

Trenches are dug around the foundation, termiticide applied and the trench filled back in.

A

Basement and Crawl Spaces.