ISO 1927-1-2012 pdf free download

ISO 1927-1-2012 pdf free download.Monolithic (unshaped) refractory products Part 1:Introduction and classification
Produits réfractaires (non faconnes) monolithiques — Partie 1: Introduction et classification.
4.2 Refractory gunning materials
These are mixtures of refractory aggregates and bond(s), specially prepared for placing by pneumatic or mechanical projection which may be either:
a) a hydraulical bond mix (see 41) (dense or insulating) which is supplied dry and used after the addition of water during or before gunning:
b) a ceramic bond mix (see 4.3.2) which is especially designed for gunning under high air pressure with special equipment, and is normally delivered in a ready-to-use state:
C) a chemical bond (inorganic or organic-inorganic) with hardening by a chemical, but not hydraulic, reaction at ambient temperature or at a temperature lower than that of a ceramic bond;
d) an organic bond with binding or hardening at ambient temperature or at higher temperatures. According to the type of bond, a further distinction is made between hydraulically bonded, chemically bonded and ceramic bonded gunning materials,
4.3 Refractory ramming materials
4.3.1 Refractory ramming mixes
These are materials that are non-coherent before use, made up of refractory aggregates, bond(s) and if necessary liquid(s). According to the type of product, the main bond may be ceramic, chemical (inorganic or organic-inorganic) or organic.
The materials are used as delivered or after the addition of liquid(s) and placed by ramming (manual or mechanical) or vibration. They harden under the action of heat above ambient temperature.
4.3.2 PlastIc refractory materials
These are materials that are coherent and ready for use, with a plastic consistency, made up of refractory aggregates, bond(s) and liquid(s). According to the type of product, the main bond may be ceramic, chemical (inorganic or organic.inorganic) or organic.
The materials are supplied in soft, pre-formed blocks or slices and placed by ramming (manual or mechanical). Installation without shuttering is possible. They harden under the action of heat above ambient temperature.
4.4 Refractory jointing materials
These are materials intended for laying and jointing bricks or blocks by trowelling. grouting in the joints, or dipping the brick or block to be bonded. They are mixtures of fine refractory aggregates and bond(s), supplied In the dry state or mixed with water ready for use.ISO 1927-1-2012 pdf free download.