Chapter:	123B	Title:	Building (Construction) Regulations	Gazette Number:
Regulation:	53	Heading:	Admixtures	Version Date:	30/06/1997

(1) The admixtures used for concrete shall be suitable and effective for the purpose of modifying the workability, rate of stiffening or hardening, or colouring of concrete.
(2) The chloride ion content of admixtures for concrete containing embedded metal or for concrete containing sulphate resisting Portland cement shall not exceed 2% by mass of admixture or 0.03% by mass of the cementitious content, whichever is the less.