CE382: PCC Final Exam. Questions &
Correct Answers Latest 2026-2027.
Graded A
1.) extra H2O accumulates under big agg.
2.) bleed H2O evaporates during drying and leaves pores
3.) high porosity allows crystals to grow - Answhat are the three causes of
the ITZ
1.) increase workability without changing w/c
2.)reduce water and keep slump constant
3.) reduce cement content for cost, reduce heat hydration and keep
strength constant - AnsWhat are the 3 purposes of using WRA's?
10% - Ansvolume change when water turns to ice
2.3-3.1 - AnsRange of acceptable fineness modulus
3.15 - AnsAssumed SpG of cement if not given?
5% - AnsConcrete accounts for what percent of global CO2 emissions?
6-7% - Anshow much entrained air do we want in concrete?
1
, 60-80% - AnsAggregate occupies what percent of concrete?
A/(A-C)= Wod/(Wod-Waggwater) - AnsApparent Specific Gravity (Ga)
A/(B-C) = Wod/(Wssd-Waggwater) - AnsBulk Specific Gravity (Gb)
absorbed water - Anstype of water that fills up permeable voids in the
aggregate
aggregates - Ansthis concrete ingredient increases concrete dimensional
stability, stiffness, toughness, and wear resistance
Air Entraining Agent (AEA) - Ansadmixture used when concrete undergoes
F-T cycles and deicing salt
Air Void Analyzer - Answhat does AVA stand for?
American Association of State Highway and Transportation Officials -
AnsWhat does AASHTO stand for?
American Society of Testing and Materials - AnsWhat does ASTM stand
for?
B-A/A= Wssd-Wod/Wod - AnsAbsorption formula
B/(B-C) = Wssd/(Wssd-Waggwater) - AnsBulk Specific Gravity SSD
(GbSSD)
2
Correct Answers Latest 2026-2027.
Graded A
1.) extra H2O accumulates under big agg.
2.) bleed H2O evaporates during drying and leaves pores
3.) high porosity allows crystals to grow - Answhat are the three causes of
the ITZ
1.) increase workability without changing w/c
2.)reduce water and keep slump constant
3.) reduce cement content for cost, reduce heat hydration and keep
strength constant - AnsWhat are the 3 purposes of using WRA's?
10% - Ansvolume change when water turns to ice
2.3-3.1 - AnsRange of acceptable fineness modulus
3.15 - AnsAssumed SpG of cement if not given?
5% - AnsConcrete accounts for what percent of global CO2 emissions?
6-7% - Anshow much entrained air do we want in concrete?
1
, 60-80% - AnsAggregate occupies what percent of concrete?
A/(A-C)= Wod/(Wod-Waggwater) - AnsApparent Specific Gravity (Ga)
A/(B-C) = Wod/(Wssd-Waggwater) - AnsBulk Specific Gravity (Gb)
absorbed water - Anstype of water that fills up permeable voids in the
aggregate
aggregates - Ansthis concrete ingredient increases concrete dimensional
stability, stiffness, toughness, and wear resistance
Air Entraining Agent (AEA) - Ansadmixture used when concrete undergoes
F-T cycles and deicing salt
Air Void Analyzer - Answhat does AVA stand for?
American Association of State Highway and Transportation Officials -
AnsWhat does AASHTO stand for?
American Society of Testing and Materials - AnsWhat does ASTM stand
for?
B-A/A= Wssd-Wod/Wod - AnsAbsorption formula
B/(B-C) = Wssd/(Wssd-Waggwater) - AnsBulk Specific Gravity SSD
(GbSSD)
2
