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Advertising supplement provided by Portland Cement Association

by Jennifer Grover Prokopy

AIA/Architectural Record Continuing Education

Instructions

• Read the article "Masonry Mortars: Developing a Quality Assurance Program."
• Complete the questions below, then fill in your answers .
• Fill out and submit the AIA/CES education reporting form in the magazine or print the form to receive one AIA learning unit.

Questions:

LU: 1 HS: 1

1. Cementitious materials for masonry do not include:
a. masonry cement
b. portland cement and lime
c. mortar cement
d. plastic cement

2. Bond performance criteria is included in the standard specification for which of the following cementitious materials:
a. masonry cement
b. portland cement and lime
c. mortar cement
d. plastic cement

3. Usually, after a mortar has hardened it will:
a. grow in volume
b. experience a slight shrinkage
c. stay exactly the same size
d. shrink first, then expand

4. Which of the following item(s) have little or no impact on mortar color:
a. careful measurement of materials and thorough mixing
b. color of cement and sand
c. compressive strength and permeability
d. tooling at like degrees of setting

5. Type N mortar can be made from which cementitious material(s):
a. only portland cement and lime
b. only masonry cement
c. only mortar cement
d. any of the above

6. Under ASTM C270, Standard Specification for Mortar for Unit Masonry, mortars are specified by the following approach(es):
a. only the property specification is allowed by this standard
b. only the proportion specification is allowed by this standard
c. the property and performance specification must be used together
d. either the property or performance specification can be used, but not both

7. The least effective quality control procedure for masonry mortars on the job is to conduct:
a. mortar aggregate-ratio tests
b. inspection of batching procedures
c. compressive strength tests
d. all of the above are equally effective

8. ASTM C270, Standard Specification for Mortar for Unit Masonry, should not be used:
a. to prepare for construction prior to starting the project
b. in the lab
c. for compressive strength testing
d. during construction to test mortars at the job site (field QC)

9. Proportion specifications in ASTM C270, Standard Specification for Mortar for Unit Masonry, do not provide the following:
a. limits for how much cementitious material to use by volume
b. limits for how much cementitious material to use by weight
c. appropriate cementitious material or combinations thereof to use for each mortar type
d. limits for how much aggregate to use

10. Choose the one true statement that shows why the compressive strength of lab-mixed mortar (the “recipe”) should not be compared with compressive strength of jobsite mortar:
a. the two mortars have the exact same water content
b. lab test specimens and joints are the same size and shape
c. lab-mixed mortar will not have the same strength as mortar on the job
d. curing conditions are the same

Click here to print the reporting form.