Ce En 306 Final Exam

Front 1

Type of Rock resulting from volcanic action

Back 1

Igneous (granite for example)

Front 2

Two sources of natural aggregates

Back 2

gravel pits, river run deposits, rock quarries

Front 3

Preferred shape of aggregates for asphalt

Back 3

angular

Front 4

Separation of smaller aggregates from larger aggregates

Back 4

particle size separation

Front 5

Term describe the moisture content of rock in a saturated-surface-dry-condition

Back 5

absorption

Front 6

"water-loving"

Back 6

hydrophilic

Front 7

Numerical measure for the particle size distribution of fine aggregate

Back 7

fineness modulus

Front 8

Water content needed to achieve maximum dry density for a given compaction effort

Back 8

optimum moisture content (OMC)

Front 9

Type of specific gravity based on the dry weight of the rock and the volume of the rock and the permeable voids.

Back 9

Bulk Dry Specific Gravity = dry weight/(total particle volume * specific gravity of water)

(refer to the formula card)

Front 10

Type of gradation that is missing small particle sizes

Back 10

open graded

Front 11

Type of mean used in computing the average specific gravity for a blend of different aggregates.

Back 11

Harmonic mean: G = 1/((p1g1)+(p2/g2)+(p3/g3)...)

Front 12

The type of damage in asphalt resulting from a separation of the asphalt film from the aggregate through the action of water.

Back 12

stripping

Front 13

Type of Portland Cement appropriate for use when high early strengths are desired.

Back 13

III

Front 14

Portland cement compound responsible for initial set and early concrete strength

Back 14

C3S

Front 15

Portland Cement compound the requires the addition of gypsum to reduce hardening rate

Back 15

C3A

Front 16

Appropriate admixture for hot-weather portland cement concreting.

Back 16

set retarder

Front 17

specific gravity of portland cement

Back 17

3.15

Front 18

admixture that promotes the dispersion of cement grains in the mixing water.

Back 18

water reducer

Front 19

Type of portland cement appropriate for use in moderate-sulfate environments

Back 19

II

Front 20

more durable product of portland cement hydration

Back 20

C-S-H

Front 21

less durable product of portland cement hydration

Back 21

C-H

Front 22

Product of primary pozzolanic reaction

Back 22

C-S-H

Front 23

What combines with gypsum to produce portland cement?

Back 23

clinker

Front 24

Two pozzolans? (use to control alkali-silica activity)

Back 24

fly ash, slag, silica fume

Front 25

Masonry walls v. wooden framed walls??

Back 25

Masonry!!! Resistance to environmental degredation

Front 26

Part of a masonry wall that should be the weakest

Back 26

joints

Front 27

Classification of block having net area equal to at least 75% of it's gross area.

Back 27

solid (p.316)

Front 28

Typical water cement ratio for structural concrete.

Back 28

0.4-0.5

Front 29

Two tests for assessing the quality of plastic concrete.

Back 29

Slump test, air test, unit weight test

Front 30

Two methods for curing concrete

Back 30

ponding, spraying, covers, membrane-forming compounds.

Front 31

Two tests for assessing the quality of hardened concrete.

Back 31

compressive strength, flexural strength, split-tension, rebound hammer

Front 32

How many pounds of cement are is one bag?

Back 32

94

Front 33

Bowing v. Sweeping (in masonry walls)

Back 33

bowing = deviation from a vertical line, sweeping = deviation from a horizontal line.

Front 34

approximate % of 28-day strength achieved in 7 days.

Back 34

70%

Front 35

Name of tapered layer of mortar often used to cap chimneys.

Back 35

cement wash

Front 36

Grout v. plaster???

Back 36

grout contains fine aggregate, plaster does not.

Front 37

Safety test for asphalt cement

Back 37

flash point

Front 38

Two classification methods for asphalt cement

Back 38

penetration, AC, AR, PG

Front 39

Ingredients in an emulsion

Back 39

asphalt cement, water, an emulsifying agent

Front 40

Name of one test that simulates short-term aging.

Back 40

thin-film oven, rolling thin-film oven.

Front 41

Molecular composition of asphalt cement

Back 41

hydrocarbons

Front 42

Superpave test that relates to rutting and fatigue cracking

Back 42

dynamic shear rheometer

Front 43

Most commonly used anti-stripping agent

Back 43

lime

Front 44

material property that increases as aging progresses

Back 44

viscosity

Front 45

material produced from fractional distillation of crude oil.

Back 45

asphalt cement

Front 46

Term an additive that replaces a portion of asphalt cement

Back 46

extender

Front 47

Know how to do PG classifications :D. (chapter 8)

Back 47

:D

Front 48

Two mechanisms of aging

Back 48

oxidation, volatization, thixotorpy

Front 49

Another name for alligator cracking

Back 49

structural cracking, fatigue cracking

Front 50

Direction of thermal cracking relative to the length of the pavement

Back 50

Perpendicular

Front 51

Typical air content for asphalt mixture design

Back 51

4%

Front 52

One type of pavement distress caused by insufficient air content

Back 52

bleeding, rutting

Front 53

Most commonly used testing device for measuring in-place asphalt quality

Back 53

nuclear density gauge

Front 54

three primary methods for asphalt mixture design (describe each)

Back 54

Superpave, Marshall, Hveem

Front 55

When water evaporates from an emulsion

Back 55

breaking

Front 56

Volume of asphalt cement not absorbed by the aggregate

Back 56

effective or free asphalt

Front 57

Cold spots in the mat during construction??

Back 57

temperature segregation

Front 58

Name of crushed fines used to meet No. 200 sieve requirements in asphalt mixtures.

Back 58

Filler

Front 59

Terms equivalent to load and deformation in Marshall testing

Back 59

stability, flow

Front 60

Construction process that ultimately controlls the speed of paving

Back 60

compaction