NZS 3123:2009 PDF Download

NZS 3123:2009 is a standard that specifies the requirements for the use of pozzolan in conjunction with Portland and blended cement in New Zealand. The standard focuses on two main aspects: blended hydraulic cement containing natural pozzolan and the use of pozzolans directly in concrete or for the manufacturing of Type GB cement.

The standard outlines the specifics for the composition and proportions of the blended hydraulic cement, providing guidelines for the addition of natural pozzolan. It sets requirements for the pozzolan itself, ensuring its quality, durability, and suitability for use in cement production or directly in concrete.

Additionally, the standard establishes regulations for the production, handling, and storage of pozzolan, emphasizing the need for appropriate testing and quality control measures. It also covers aspects such as fineness, chemical composition, and reactivity, ensuring that the pozzolan complies with the specified standards.