Page 65 - CONCRETE MATERIALS AND MIXTURE

Shape and Surface Texture of Aggregate

• Finer aggregate would reduce workability because

of high specific surface area.

• Larger size of coarse aggregate gives higher

workability because of the reduction in the total

specific surface area

• Irregular and angular aggregate reduces

workability

• Rounded aggregate increase workability because

of reduction in particle interference

• The use of elongated aggregate results in low

workability, primarily due to increase in particle

interference