Title:
Specific Granularity
Author(s):
Pei-Xing Fu
Publication:
Concrete International
Volume:
34
Issue:
9
Appears on pages(s):
41-45
Keywords:
fineness modulus, surface area, aggregate, cement, mixture proportioning
DOI:
Date:
9/1/2012
Abstract:
Fineness modulus is used to describe the average grain size of fine or coarse aggregate. Unfortunately, it has no correlation to the total surface area per unit of mass for the aggregate, known as the specific surface area. A new parameter, specific granularity, is proposed for developing relationships between particle size and specific surface areas of cementitious materials and aggregates. The parameter can therefore be used to assess the water required in a concrete mixture.