NEN EN 450 : 1995

0 Introduction
1 Scope
2 Normative references
3 Definitions
3.1 type II addition
3.2 fly ash
3.3 reference cement
3.4 particle density
3.5 activity index
3.6 autocontrol
4 Requirements
4.1 General
4.2 Chemical requirements
4.2.1 General
4.2.2 Loss on ignition
4.2.3 Chloride
4.2.4 Sulfuric anhydride
4.2.5 Free calcium oxide
4.3 Physical requirements
4.3.1 Fineness
4.3.2 Activity index
4.3.3 Soundness
4.3.4 Particle density
5 Packaging and marking
6 Quality Control
6.1 Conformity criteria
6.2 Autocontrol
6.2.1 General
6.2.2 Sampling
6.2.3 Frequency of sampling and testing
Annexes
A (informative) Sampling plans
A.0 Introduction
A.1 Inspection of variables
A.2 Inspection by attributes

Specifies requirements for the properties of fly ash for use as a type II addition in cast-in-situ or prefabricated structural concrete.