ČSN EN 14487-1 (732431)

Annotation of standard text ČSN EN 14487-1 (732431):

This document is applicable to sprayed concrete to be used for repair and upgrading of structures, for new structures and for strengthening of ground. This document covers: - classification related to consistence of wet mix; - environmental exposure classes; young, hardened and fibre reinforced concrete; - requirements for constituent materials, for concrete composition and for basic mix, for fresh and hardened concrete and all types of fibre reinforced sprayed concrete; - specification for designed and prescribed mixes; - conformity. This document is applicable to wet mix as well as dry mix sprayed concrete. The substrates to which sprayed concrete can be applied include: - ground (rock and soil); - sprayed concrete; - different types of formwork; - structural components constituted of concrete, masonry and steel; - drainage materials; - insulating materials. Additional or different requirements may be needed for applications not within this document, for instance-refractory uses