The Cement Admixtures Association is a trade association founded in the United Kingdom in 1963 to promote the effective use of admixtures in concrete, mortar and grout. The association believes that admixtures are a key component of durable and sustainable concrete for modern construction and that their wider use should be encouraged within the building and civil engineering industries.

The Association’s full members include the major companies involved in the development, manufacture and supply of admixtures in the United Kingdom. Several of these companies also have major overseas involvement in admixtures.

Full membership is open to companies who manufacture or supply admixtures for use with hydraulic cement and who have traded in this sector for at least two years. Full members must operate a third party certified quality management system complying with ISO 9001 and with 14001.

Associate members include suppliers of raw materials to the full members, suppliers of dispensing equipment and test houses. Under the rules of the Association they may not supply admixtures directly to the construction industry.

The CAA is active in work on British and European standards and in the preparation of guidance on the use of admixtures and general concrete technology. Liaison is maintained with the main user groups such as the MPA, Concrete Sustainability Forum and the Concrete Society.

CAA is an active member of the UK Sustainable Concrete Forum.

CAA is a member of the European Federation of Concrete Admixtures Association (EFCA).

The CAA is pleased to provide help to users through training courses and by giving talks and lectures on admixtures and admixture related subjects.