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Materials CE 200 Seminar Final Exam Quiz 2 - Aggregates and Masonry
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Materials CE 200 Seminar Final Exam Quiz 2 - Aggregates and Masonry
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Materials CE 200 Seminar Final ExamQuiz 2 - Aggregates and Masonry
Aggregates include different sizes of - ANSWER-Riprap, Gravel or pebbles, Natural
sand, and Crushed used concretes
Crushed used concretes - ANSWER-Coarse Aggregates recycled from different types
of crushed concrete - PCC, AC, nd mortar
For the manufacturing of heavyweight PCC, the use of the following as coarse
aggregate (CA) would be productive: - ANSWER-Slag from steel mills
Good CHEMICAL properties of Aggregates - ANSWER-reactivity, as in resistance to
chemical attacks
Good MECHANICAL properties of Aggregates - ANSWER-impermeability, volume
stability, hardness, toughness, soundness, porosity, etc.
Good PHYSICAL properties of Aggregates - ANSWER-size, shape, texture, specific
gravity, etc.
Gravel or pebbles - ANSWER-Coarse Aggregates used in concretes(PCC and AC)
base course supporting slabs, pavements, or airport runways
In masonry construction the function of masonry grout is to: - ANSWER-Provide a
medium through which lateral and bending loads can be transferred to the reinforcing
steel
In masonry construction the primary function of masonry mortar is to: - ANSWER-
Provide a bond among the masonry units to construct a monolithic structure
Masonry grout consists of - ANSWER-Fine Aggregates, Pea gravel (no larger than
3/8"), PC and Lime (or masonry cement
Masonry mortar is classified by: - ANSWER-The proportion of the PC, lime, and sand,
as well as the compressive strength
Monolithic structure - ANSWER-Method in which all the concrete in a building is
properly bounded together and acts as one
Natural sand - ANSWER-Fine Aggregate in, or filler of, concretes - PCC, and AC
necessary component of reinforced masonry construction - ANSWER-Masonry grout
, partition walls - ANSWER-Non-loadbearing wall's that subdivide areas of a floor
PCC Masonry Blocks are made of : - ANSWER-Zero-slump, small-size (<¼″) coarse
aggregate PCC molded under pressure compaction, and cured via hydration
Riprap - ANSWER-Large stones placed on a slope to prevent soil erosion in the
construction of pavements
Sort the strength of masonry components from highest strength to lowest strength: -
ANSWER-Unit, Prism, Mortar
Standards for Aggregates - ANSWER-Water absorption, Soundness, and durability
T/F
As the trend to use recycled concretes and crushed rocks to supply coarse aggregate
(CA) for PCC — in response to diminishing naturally available gravel along river beds —
the use of chunky but angular, and less than completely smooth-textured CA is now
normal. - ANSWER-True
T/F
For Asphalt concrete:
Angular, Rouch and Porous textured Course Aggregates are better than
rounded/smoother aggregates - ANSWER-True
T/F
For Asphalt Concrete:
Rounded and smoothed textured coarse aggregates are better than Angular and porous
textured aggregates - ANSWER-False
T/F
For PCC :
Rounded and smoothed textured coarse aggregates are better than Angular and porous
textured aggregates - ANSWER-True
T/F
For PCC:
Angular, Rouch and Porous textured Course Aggregates are better than
rounded/smoother aggregates - ANSWER-False
T/F
In masonry construction the function of masonry grout is to provide a medium through
which lateral and bending loads can be transferred to the reinforcing steel - ANSWER-
True
T/F
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