What are the four major compounds found in raw ordinary Portland cement?
Cement reactions

Quiz
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Professional Development
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Professional Development
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Medium
Yu Yuen
Used 19+ times
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
C3S, C2S, C3A, C4AF
SO3, SiC, CAA, CO2
FeO, NO2, NaCl, N2
C-S-H, CH, Ettringite, H
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the major major hydration product of cement?
Ettringite
C3S
C-S-H
H
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Sulfate attack on concrete can produce cracking and spalling. What is the cause?
early ettringite formation (EEF)
delayed ettringite formation (DEF)
delayed sleeping
delayed C-S-H formation
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Moisture curing of concrete can increase strength. Why?
delayed ettringite formation
hydration of unreacted cement grains.
hydration of gypsum
hydration of aggregate
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cement hydration is a heat-releasing reaction. To reduce the hydration heat, the best way is to partially replace cement with...
gypsum
sand
pozzolans
water
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