Abstract
This literature study is a shortened version of a State of the art report written for COINs (Concrete Innovation Centre) surface quality project. COIN’s main vision is “Attractive concrete surfaces“. An overview of parameters which influence quality and aesthetical impression of the concrete surface has been made in connection to COIN’s surface projects. The main focus has been on evenness of colour, occurrence of voids and pores and cracking due to drying shrinkage. Factors influencing the concrete surface such as material parameters, chemical admixtures, mix design, formwork, form releasing agents and production techniques are discussed. The characteristics of self compacting concrete are compared with ordinary vibrated concrete.