Long-awaited standard on concrete retaining blocks now official

摘要

Standards South Africa (STANSA) has published the South African National Standard, SANS 508:2008 on concrete retaining blocks (CRB). Covering the manufacture of CRB, . the Standard was compiled by STANSA in close collaboration with the Concrete Manufacturers Association (CMA) and its member companies.rnConcrete retaining blocks are widely used in the construction of earth-retaining walls and are manufactured either by dry or wet casting, the former being the most prevalent and more modern method. SANS 508 is applicable to both.rnCMA president-elect and vice-president of its CRB Division, Silvio Ferraris, says compressive strength is a critical feature of the Standard, as a deficiency in this standard could result in the failure of a wall.