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Refratechnik's REFRAJET® Addmix: An innovative injection system
release time :2017-10-16 10:28:20 page view:348

Oct. 15, 2017 - The REFRAJET® Addmix technology is an innovative injection system that was developed specifically for the installation of cement-free sol-gel bonded refractory concretes of the REFRAJET® Nanobond type.

The injection system creates a reactive aerosol that is injected centrally into the continuous flow of dry gunning mix material. A liquid binder can be added to the pre-wetted dry material via a conventional nozzle system at the end of the deliver hose.

Pre-wetting of the dry gunning mix offers several advantages, such as reduced dust generation at the gunning nozzle, less material rebound – particularly during overhead work – plus enhanced bonding to refractory surfaces.



Moreover, the concrete's cold crushing strength and cold modulus of rupture are increased, porosity is reduced, and a denser concrete structure is obtained.


The process has been optimized for cement-free shotcretes of the REFRAJET® Nanobond type, but it can also be used for many other concretes from Refratechnik's product range.

Refratechnik Holding GmbH

Address: Adalperostrasse 82 85737-Ismaning Postal Code: 85737 Website: http://www.refra.com

Sponsored by: ACRI (The Association of China Refractories Industry), Tangshan YinNaiLian E-Business Co., Ltd.

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