Concrete Flashcards
(36 cards)
This type of cement concrete, also called as ferroconcrete, has steel embedded in it that allows it to take tensile stress.
Reinforced Cement Concrete (RCC)
This type of cement concrete is applied with pre-tensioning to enhance its capacity to take stress.
Pre-Stressed Cement Concrete (PCC)
Give examples of uses of concrete.
- Driveways and Patios
- Sidewalks
- Parking
- Streets/Roads
- Footings, Foundation, Columns, and/or Slabs
- Low-Rise, Mid-Rise, and High-Rise Buildings
This process requires concrete to be kept wet for a certain period after placing it so as to promote the hardening of cement. It consists of a control of temperature and of the moisture movement from and into the concrete.
Curing
What is the most common method employed in curing of concrete?
Spraying of Water
Only _______ water is required to be used for mixing of concrete.
Potable
What is freshly prepared concrete that has not set yet called?
Wet/Green Concrete
What is fully hardened concrete called?
Set Concrete
It is the fluidity or degree of wetness of concrete and is a major factor in indicating the workability of freshly mixed concrete.
Consistency
Enumerate the test methods for measuring concrete consistency.
Flow Test
Kelly-Ball Test
Slump Test
The goal of this test is to measure the consistency of concrete through its slump.
Slump Test
It is the tendency of water to rise to the surface of freshly placed concrete.
Bleeding
This consistency test measures the amount of flow.
Flow Test
This consistency test measures the amount of penetration.
Kelly-Ball Test
It is the most widely used consistency test.
Slump Test
What makes up concrete?
portland cement, water, aggregates, and in some cases, admixtures
It is one of the most commonly used building materials, as it can easily be mixed to meet a variety of special needs and formed to virtually any shape. It is often looked upon as man-made rock.
Concrete
It is a bonding material and is the most important constituent of concrete.
Cement
What type of cement is most commonly used in concrete?
Portland Cement
These are inert or chemically inactive materials that make up the bulk of a concrete mixture and are bound together by means of cement.
Aggregates
Differentiate the two types of aggregates.
Fine - natural river sand/finely crushed stones
Coarse - broken stones
These aggregates are removed from their natural deposits as unconsolidated sediments. Aggregates from such deposits are called gravel and sand.
Natural Aggregates
What are the three types of natural aggregates?
Crushed Rocks
Gravel
Sand
This component of concrete is used for mixing and curing.
Water
