English Abstract The joint research project 'Environmental implications
of useful applications of primary and secondary materials to be used on or
in the soil' has been carried out by four institutes i.e. RIVM, ECN, TNO,
and INTRON. In this research project a comparison has been made between the
environmental implications if primary (natural) materials would be replaced
by secondary (waste) materials in road constructions and building materials.
Moreover, the results may contribute to the regulation of the application of
secondary materials. All products had been manufactured by Intron on
laboratory scale but bricks and lytag by manufacturers on plant scale. This
report concerns the sampling and sample preparation of 28 building materials
(Table 1) manufactured from secondary and primary materials. This part of
the project was carried out by the Laboratory of Inorganic Chemistry of the
National Institute of Public Health and Environmental Protection
(RIVM).
