Early Age Properties

If the water content is high, then the workability will be........

• High

• Low

• No change

Higher aggregate/cement ratio results in .......... workability

• Low

• High

• No change in

Porous aggregates have ......... workability than non-absorbent aggregates

• same

• high

• low

Bigger size aggregates has .......... surface area and ........ workability compared to smaller aggregates

• small, high

• small, low

• large, high

• large, low

............ graded aggregates increase the workability

• poorly

• gap

• well

Workability ............... when temperature increases

• increases

• decreases

• does not change

What causes segregation

• using pozzolans

• adding fine fibers

• reducing w/c

• large aggregates and low fines

The Vebe time will decrease with .......... concrete workability

• decreasing

• increasing

Zero slump is the indication of ......... water-cement ratio and ....... workability

• high, no

• low, high

• high, high

• low, no

Collapsed slump is the indication of ......... water-cement ratio and ........ workability

• low, no

• high, no

• low, high

• high, high