builder advanced ch4 Flashcards
Masonry is a construction method made up of prefabricated masonry units laid together in various ways and joined together by what type of mix?
Mortar
What type of planning ensures concrete masonry walls are laid out so maximum use is made of full-length and half-length masonry units?
Modular
in most construction accomplished by Seabees, what size concrete masonry units (CMUs) are used?
8”x8”x16”
which one of the two methods used by Builders to estimate CMUs is the quickest, but NOT the most accurate?
Square foot method
Building specifications call for a 1:2 mortar mix. Using rule 38, haw many sacks of cement are required to make up a 2 cubic yard mix?
13
It takes one person (skilled labor) a total of how many hours to lay 1000 square feet of 8”x8”x16” concrete block?
160
Concrete Block
8”x8”x16” a Unit 1,000sf Man HRs per Unit 160
160 man hours per unit
unit is 1,000sf
How many man hours are required to construct 1,500 square feet of wall area using 8 inch by 8 inch by 16 inch CMU?
240 man hours
What type of brick is designed to withstand exposure to below freezing temperatures in a moist climate?
SW
Tile masonry has a compressive strength of how many pounds per square inch?
300
Partition walls of clay tile 6 inches thick can resist for 1 hour a fire that produces heat not exceeding what temperature, in degrees Fahrenheit?
1700
TRUE/FALSE
The use of structural load bearing tiles is restricted by building codes.
True
Stone masonry units are classified into what two types?
Ashlar and Rubble
What type of rubble stonework is the crudest of all types?
Random
What type of rubble consists of roughly squared stones assembled in such a manner as to produce approximately horizontal bed joints?
Coursed
