Aggregates include diff sizes of - correct answer-all of the above [rip-rap,
b b b b b bb b b b b b
gravel/pebbles, sand, crushed concrete.]
b b b b
lime was once the only binder in masonry mortar during the pre roman times - correct
b b b b b b b b b b b b b b bb
answer-all of the above [it give work ability, reduces shrinkage, help make mortar, , imper
b b b b b b b b b b b b b b b
able]
b
aggregates used in PCC for best results should contain moisture content that quals for
b b b b b b b b b b b b b
being in the wet state - correct answer-no ideal wet state exists
b b b b b b bb b b b b b
when using reinforced masonry its essential to use - correct answer-all of the above [
b b b b b b b b bb b b b b b
reinforced steel, masonry grout, hollow pcc blocks or solid masonry units, double Wyeth]
b b b b b b b b b b b b b
which letters specify masonry mortar - correct answer-MKNS not L
b b b b b bb b b b
in masonry construction the primary function of masonry mortar - correct answer-to
b b b b b b b b b bb b
provide bond among the units so as to effect, even in a non-homogeneous const, a
b b b b b b b b b b b b b b b
monolithic structure
b b
for heavy weight PCC, use - correct answer-of slag from steel mills as a CA would be
b b b b b bb b b b b b b b b b b
productive
b
should be avoided for CA for concrete - correct answer-elongated /flaky CA
b b b b b b b bb b b b
aggregates must me standards like - correct answer-all of the above[water
b b b b b bb b b b b
absorption,soundness,durability]
b
aggregates used as filler-binder materials are selected based on - correct answer-All of
b b b b b b b b b bb b b
the above [ Ca for PCC rounded/smoother, Ca for asphalt-angular and rough/porous,
b b b b b b b b b b b b
used recycled concretes and crushed PCC, little distinctive difference between CA for
b b b b b b b b b b b b
PCC and AC]
b b b
Masonry mortar is classified by - correct answer-proportion of PCC, Lime, and Sand, as
b b b b b bb b b b b b b b
well as compression strength of the mortar
b b b b b b b