scope:

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.