 |
 |
 |
 |
|
|
|
|
|
|
Rough,
angular and elongated aggregate particles require more water than
smooth rounded aggregates to make the concrete workable. Angular
aggregates require more cement than smooth aggregates to
maintain the same cement to water ratio. Rough and angular aggregates
form larger voids in the concrete mixture than smooth aggregates.
More water and cement is used to fill the larger voids in rough and
angular aggregates. Rough and angular aggregates form a stronger bond
than smooth aggregates.
Aggregates should be stored to reduce segregation. Aggregates stored in
uniform thin layers segregate less than when they are stored on conical
piles. Rough and angular, and small aggregates segregate less than
smooth, and large aggregates. |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |