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Chapter 6

Fresh Concrete

Workability of Concrete
Workability of Concrete
If the concrete ingredients offer significant resistance against each other, the movement of the concrete is hindered, making the placement and handling ...
Factors Affecting Workability
Factors Affecting Workability
Workability depends on factors like water content because it boosts lubrication among the concrete ingredients, aiding workability. Finer particles, for ...
Segregation in Fresh Concrete
Segregation in Fresh Concrete
Excessive horizontal movement of concrete within forms, or dropping it from a considerable height or through narrow spaces with directional changes, can ...
Bleeding in Fresh Concrete
Bleeding in Fresh Concrete
If water from the concrete mix rises to the top of the newly laid concrete, it is bleeding. The cause is the mix's solids failing to retain all water ...
Slump Test
Slump Test
The slump test measures concrete workability and uses a 12-inch high truncated cone mold, narrowing from eight inches at the base to four inches at the ...
Compacting Factor test
Compacting Factor test
The compacting factor test determines the workability of concrete with aggregate sizes up to a maximum of one and a half inches. The test equipment ...
Vebe Test
Vebe Test
The Vebe test is conducted on concrete to identify its workability, preferably for dry mixes. The test apparatus comprises a cylindrical chamber measuring ...
Flow Table Test
Flow Table Test
The flow table test, used to find the workability of concrete and evaluate highly flowable concrete, involves an apparatus consisting of a wooden board ...
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