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Construction Materials - MIDTERM > Midterm gani > Flashcards

Midterm gani Flashcards

1
Q

Understanding construction materials ensures
that structures are built “safely” and can withstand various stresses
over time, preventing failures and accidents.

A

Quality and Safety

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2
Q

Construction projects need good materials and
understanding of how to use them well. Designers,
builders, and users must know about materials,
construction _________, ____________ and ___________
for successful and cost-effective outcomes.

A

materials, construction methods, and maintenance

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3
Q

___________ and _____________ are both organizations that set standards for materials used in construction, including highways and transportation infrastructure.

A

AASHTO (American Association of State Highway and Tansportation Officials) and ASTM (American Society for Testing and Materials)

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4
Q

________ primarily focuses on standards related to transportation
and highway infrastructure.

A

AAHSTO

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5
Q

_________ sets standards for a wide
range of materials and products used in various industries, including
construction.

A

ASTM

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6
Q

________ is degree of excellence. It is described by such general terms as stable, durable, rigid or flexible. Some equate it to cost, others to conform or elegance. However, _______ for different individuals may vary since it is influenced by factors, such as economics, aesthetics, safety, or performance

A

Quality

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7
Q

__________ is to regulate. It is usually used in relation to weight, population, or prices. It is instituted when there is need to check or regulate due to some important,
compelling reasons.

A

Control

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8
Q

__________ is checking for conformance to requirements. It is now widely and increasingly used in the construction industry. It is instituted during the course of construction as a ____________, not as a corrective measure. Preventive measures are always more ________.

A

Quality Control, preventive tool, economical

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9
Q

To ensure the highest quality of work and extend the service life of any structure by constructing according to the prescribed ________ and ________.

A

plans and specifications

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10
Q

The ________ indicate the specific type of the structure and the __________ present the characteristic in which it is built, as well as
the materials that are to be incorporated into the work.

A

plans, specifications

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11
Q

To check and regulate the use of construction materials and to economize on the cost of construction. Fulfilling these, requires ____________ prior to and after placing to their final position in the structure. Normally, every material should be subjected to _____________, ____________, ________ before acceptance.

A

adequate control of materials ( testing, inspection, and verification)

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12
Q

___________ is degree of certainty. _________ is a function of the ________ to verify/audit and evaluate that the work is done in accordance with specifications. Some call it ___________

A

Assurance, Quality Assurance, owner, acceptance inspection.

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13
Q

It is the basic means or a tool by which an engineer or an inspector can be used to determine whether the materials should be allowed to be incorporated or be rejected into the work.

A

Material Testing

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14
Q

It is a documented proof of the quality of materials indicating it meets or it fails the desired properties as called for in the specifications requirements of an approved contract.

A

Materials Testing

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15
Q

There can be no quality assurance without adequate __________at the source or manufacturer or at construction,
therefore _______ is a tool for measuring quality control in project implementation.

A

quality control, testing

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16
Q

_________ is an important complement of quality control in engineering works

A

Testing

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17
Q

__________, _________, ___________ who are involved
in the implementation of various infrastructures needs to learn testing technology in construction materials to enhance and strengthen their capabilities in the implementation of _____________ of a project.

A

Project Engineers, Materials Engineers, Laboratory Technicians, Quality Assurance Program

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18
Q

The _______ has the prime responsibility to produce/process the products to meet/satisfy the quality requirements in accordance with the Specifications prior to incorporating them into the project.

A

contractor

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19
Q

____________ applies to the written contract documents which includes material and workmanship requirements, inspection and testing procedures and procedures for
measurement and payment of work, all of which are mostly based on American Association of State Highway and Transportation Officials (AASHTO)

A

Specifications

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20
Q

The _________, however becomes the starting point of quality
control. Without specification, there can be no quality control.

A

specifications

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21
Q

has the primary responsibility of producing a complete, accurate, and costefficient
building in accordance to the approved set of plans of the project, what are the taks of this?

A

Project Engineer, PCPCP, Planning, Coordinating, Project Control, Communication and Documents, Personnel

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22
Q

Responsible for the sampling as instructed by the owner’s Engineer, testing, inspection and submission of quality control reports data.

A

Materials Engineer ( Contractor’s Side)

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23
Q

Supervise continuously the Contractor’s technicians/foremen in carrying out
specified sampling, testing and reporting works;

A

Materials Engineer ( Owner Side)

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24
Q

Ascertain that all materials pass the requirements of the DPWH Standard Specifications for Highways.

A

Materials Engineer from the Government Side

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25
Q

Ascertain that all materials pass the requirements of the DPWH Standard Specifications for Highways.

A

Materials Engineer from the Government Side

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26
Q

Ascertain that all materials pass the requirements of the DPWH Standard Specifications for Highways.

A

Materials Engineer from the Government Side

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27
Q
  • To prepare design mixes for concrete and asphalt mixtures.
  • Accomplished, update, and keep the test report records such as materials logbook.
A

Material’s Engineer ( Contractor)

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28
Q
  • Instruct the Contractor where to take representative samples and ensure frequency
    of sampling and testing required in the Specifications;
  • Ensure that all tests on materials and field operations are correctly recorded by the
    Contractor’s technicians in daily reports of forms and submitted to the Engineer/the
    PE without delay;
A

Materials Engineer from the Owner’s Side

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29
Q

-Submit a monthly summary of all test results to the Engineer (PE), together with recommendations regarding approval or rejection of materials and work, based on the test data
and observations and
- Carry out independently from the Contractor’s technicians, any sampling and testing for the
purpose of confirming the test results submitted by the Contractor, if required. The ME should also conduct a random or surprise sampling and testing in addition to the planned sampling and testing.

A

Materials Engineer from the owner’s side

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30
Q

-Advise the PE on the acceptance or rejection of construction materials
- Check the Quality Control Program (QCP) prepared by the contractor

A

Materials Engineer on the Government Side

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31
Q

-Accomplish the weekly Certificate of Quality Control Assurance (CQCA)
- Evaluate design mix and job mix for concrete
-Acquaint with standard procedures on materials sampling, testing and control
-Ensure the testing laboratory is adequately equipped

A

Materials Engineer from the Government Side

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32
Q

-Ensure the testing laboratory is adequately equipped
-Submit the test reports and other pertinent quality control reports
- Strictly supervise his laboratory technicians

A

Materials Engineer from the Government Side

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33
Q
  • Submit the test reports and other pertinent quality control reports
  • Strictly supervise his laboratory technicians
A

Materials Engineer from the Government Side

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34
Q

Only materials that passed the Specifications and approved by the Engineer are used for the construction

A

Quality of Materials

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35
Q

Good skill, art and/or technique are used for quality products

A

Workmanship

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36
Q

Test results on finished product meet the specified strength and quality.

A

Quality of Product

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37
Q

The first step in quality control is the preparation of the plan or program by the _________. He submits it to the owner or his representative. The plan should
include provisions on how the work and materials should inspect and the nature and amount of testing work to be done. It should also indicate whether a
project quality control laboratory will be set up to facilitate testing.

A

Quality Control Program

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38
Q

It specifies the minimum number of tests required for an item of work which corresponds to the quantities stated in the approved Program of Work of a project.

A

Quality Control Program

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39
Q

Quality Control Program is prepared by the concerned Materials Engineer of the ________, to be checked by the concerned Materials Engineer of the __________,to be submitted by the _____________ and to be
approved by the ____________.

A

contractor, government, project engineer, head office

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40
Q

For cement, we need _____ bags, 1 bag = ________. For every ________ bags or fraction therefore, 1-Q, Quality Tests.

A

9.00 bags, 40 kg, 2,000.

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41
Q

FINE AGGREGATES
________ m cube/ per m cube ( if rounded coarse aggregate is used)
________ m cube/ per m cuve if angular coarse aggragate is used),
For every ________ m cuve or fraction thereof: 1 - Quality Test

A

0.50, 0.54 ( 1500 m cube)

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42
Q

Fine Aggragates
For a source not tested yet, or failed in previous quality test: 1-Q, Quality Test for:

A
  • Elutriation
  • Bulk Specific Gravity
  • Absorption
  • Mortar Strength
  • Soundness
  • Organic Impurities
  • Unit Weight
  • % Clay Lumps and Shale
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43
Q

Fine Aggregates for a source previously tested, and passed quality test, for every______ m cube thereof, one ________.

A

75, grading test ( Sieve Analysis)

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44
Q

COARSE AGGREGATES
Quantity:
1) ______ m³/m³ concrete (if rounded coarse aggregate is used)
2) _______ m³/m³ concrete (if angular coarse aggregate is used)
Tests: Quality For every _______ m³ or fraction thereof:

A

0.77, 0.68, 1500

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45
Q

For a source not yet tested, or failed in previous quality test: 1-Q, Quality Test for:

A

-Grading
-Bulk Specific Gravity
-Absorption
-Soundness
- Unit Weight

46
Q

For a source previously tested, and passed quality test:
1-Q, Quality Test for:

A

o Grading
o Bulk Specific Gravity
o Absorption
o Abrasion

47
Q

WATER
Tests: _________ from Project Engineer or
1-Q, Quality Test, if source is questionable

A

1 Certificate

48
Q

JOINT FILLER
1. Poured Joint Filler
Tests: 1-Q, Quality Test on each ________ of ingredient for each shipment
2. Pre-molded Joint Filler
Tests: 1-Q, Quality Test on each ______ of filler for each shipment

A

type
thickness

49
Q

Sealing of joints should be undertaken after the ______ period and before the _______ is opened to traffic.

A

curing, pavement

50
Q

SPECIAL CURING AGENTS
Tests: ____-Quality Test for each shipment

A

1

51
Q

STEEL BARS
Tests: For every _________ kg or fraction thereof, for each size:
1-Q, Quality Test for:

A
  • Bending
  • Tension
  • Chemical Analysis
52
Q

CONCRETE
Tests: ____________on Concrete Beam Samples:
1-Set, Consisting of 3 beam samples shall represent a ______m2 of
pavement, ________mm depth, or fraction thereof placed each day.
Volume of concrete not more than ___m^3.

A

Flexural Strength Test, 330, 230, 75

53
Q

COMPLETED PAVEMENT
Tests: Thickness determination by concrete core drilling on a lot basis
_______ holes per km per lane or
_________ holes per _______ m when 2 lanes are poured concurrently

A

5, 5, 500

54
Q

Class of Concrete Bags/m³
Class A ____ bags/m³ of concrete
Class B ____ bags/m³ of concrete
Class C _____ bags/m³ of concrete
Class P _____ bags/m³ of concrete

A

9.0, 8.0 9.5, 11.0

55
Q

FINE AGGREGATES
For ROUNDED For ANGULAR
Class A 0.50 0.54 m³/m³ of concrete
Class B _____ _____ m³/m³ of concrete
Class C _____ ______ m³/m³ of concrete
Class P ______ _____m³/m³ of concret

A

0.45, 0.52
0.53, 0.59
0.44, 0.47

56
Q

the process by which a liquid is drawn into pores in a porous solid body

A

Absorption

57
Q

a process by which DPWH demonstrate the competency to perform specific tasks in accordance with the standard.

A

Accreditation

58
Q

A material other than water, aggregates, cementitious materials, and fiber reinforcement that is used as an ingredient of a cementitious mixture. e.g. Accelerating
mixture, Air-entraining mixture, Chemical admixture, Water-reducing mixture, Waterreducing
mixture.

A

Admixture

59
Q

the number of days or hours of curing of a concrete mixture at a specified temperature

A

Age, equivalent

60
Q

granular material used with a cementing medium to form hydraulic cement concrete or mortar. e.g. Coarse aggregate, Fine aggregate, lightweight/low density aggregate, normal weight aggregate.

A

Aggregate

61
Q

nonmetallic product, consisting of silicates

A

Blast-furnace slag

62
Q

the mass of a unit volume of bulk aggregate material

A

Bulk Density

63
Q

a mixture of inorganic materials that sets and develops strength by chemical reaction with water

A

Cementitious material

64
Q

a composite material that consists of a binding medium which embedded within are particles of aggregate

A

Concrete

65
Q

the relative mobility or ability to flow of a fresh cementitious mixture

A

Consistency

66
Q

action taken to maintain moisture and temperature conditions in a freshly placed cementitious mixture

A

Curing

67
Q

the ratio of the density of materials to the density of distilled water at a given temperature

A

Relative Density

68
Q

coarse aggregate resulting from natural disintegration and abrasion of rock

A

Gravel

69
Q

gain strength and other properties of a cementitious mixture

A

Hardening

70
Q

those spaces in a specimen that do not become filled with water when submerged

A

Impermeable Pores

71
Q

Give 6 curing methods for concrete

A

Ponding, Wet Curing, Sealing, Chemical Curing, Membrane Curing, Steam Curing

72
Q

fine aggregate resulting from natural disintegration and abrasion of rock

A

sand

73
Q

Defined by _______ as the process occurring after the addition of mixing
water, that results in a gradual development of rigidity of a cementitious mixture.” In
other words, it is the process a concrete mixture goes through, from being a liquid
mixture to gaining certain stiffness

A

Setting, ASTM C125

74
Q

the ability to resist separation of the paste from the aggregates.

A

Stability

75
Q

the product resulting from the use of mechanical devices to break rocks, boulders, or large cobblestones into smaller fragments

A

crushed stone

76
Q

– striking the side of a mold to close voids in a fresh
cementitious mixture created by rodding or an internal vibrator

A

Tapping

77
Q

the property of freshly mixed concrete that affects
the ease with which it can be mixed, placed, consolidated, and
struck off.

A

workability

78
Q

for drying, conditioning and moisture determination

A

Laboratory Ovens

79
Q

device for separating wanted elements from unwanted material or for characterizing the particle size distributions of sample.

A

Sieves

80
Q

designed for the reduction of test samples

A

Sample Splitter

81
Q

is used for rock classification tests

A

Rock Classification Hammer

82
Q

used to determine the resistance of aggragates by abrasion.

A

Los - Angeles Abrasion Machine

83
Q

Used to measure coarse
aggregate density through
water displacement method.

A

Volumeter for aggregates

84
Q

designes to mix dry materials

A

Dry Mixer

85
Q

suitable to
determine the abrasion
resistance of glazed tiles and
other materials.

A

Abrasimeter

86
Q

used to measure
resistance of an aggregate to
crushing under a gradually
applied compressive load.

A

Aggregate Crushing Value
apparatus

87
Q

used for specific gravity and
water absorption test.

A

Bouyancy balance

88
Q

design to remove a
cylinder of material, much like a
hole saw

A

Core Drill

89
Q

used to perform
compression test on
concrete cylinder specimens

A

Compression Testing Machine

90
Q

used to perform flexural tests
on concrete beam specimen

A

Flexural Testing Machine

91
Q

used to determine
the strain and deformation
characteristics of concrete
specimens. It is used to determine
the static modulus of elasticity
(Young’s Modulus) and Poisson‘s
ratio of concrete in compression

A

Concrete Cylinder Compressometer
- Extensometer–

92
Q

suitable for field mixes of medium strength concrete

A

Drum Type Mixer

93
Q

for the
determination of the consistency,
the medium and high workability of
fresh concrete.

A

Slump Cone Test Set

94
Q

for quantitative
determination of binder or
bitumen contained in
pavement samp

A

Automatic Binder Extraction Unit

95
Q

use for asphalt
content determination in bituminous
concrete

A

Reflux Extractor

96
Q

– it can
extrude Marshall, CBR, and
Standard and Modified
Proctor specimen.

A

Universal Extruder

97
Q

is a
stand-alone system for fatigue life
testing of asphalt beams subjected to
repeated flexural bending, giving a
measure of maximum tensile strength,
maximum tensile strain and flexural
stiffness.

A

Fatigue Tester of Asphalt Beams

98
Q

–used to determine the
consistency of a bituminous sampler
under fixed conditions of load, time and
temperature.

A

Penetrometer

99
Q

used for drying
asphalt.

A

Asphalt Oven

100
Q

used to determine
the viscosity of cut-back bitumen
and road oil

A

Viscometer

101
Q

this apparatus is used for the
measurement of the apparent
density (bulk density) of powder
and non-cohesive materials

A

Bulk Density of Cement

102
Q

used to determine the initial and
final setting time of a hydraulic
binder

A

Automatic Recording Vicat
Apparatus

103
Q

used for setting time and
consistency of cement.

A

Vicat Apparatus

104
Q

expressly designed for the
efficient mixing of cement
pastes and mortar, with two
automatic sequences of mixing
cycle.

A

Automatic Mortar Mixer

105
Q

to carry
out static tensile tests on
metallic materials.

A

Universal Hydraulic ServoControlled
Machine

106
Q

used to
make notching on impact test
bars for resilience tests.

A

Broaching Machine

107
Q

to check the energy absorbed
during the impact, which is
measured in JOULE.

A

Pendulum Impact Charpy Tester

108
Q

designed to
carry out bending tests on steel
bars for reinforced concrete

A

Bending Machine

109
Q

are used to measure the
percentage of water in a given
substance.

A

Moisture Meters

110
Q

–for
determination of shear strength,
hardness, Cleavage, Static bend
Plywood Grips Nail/Screw
withdrawal test, compression
(parallel-to-grain) and many
other test on wood plywood.

A

Universal Wood Tester

Construction Materials - MIDTERM (3 decks)

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