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Unshaped Refractories

Identification of Organic Admixtures in Cement Dry Mix Systems Using MDRS

Organic admixtures for industrial mortars and concretes, such as superplasticizers, retarders, or organic lubricants, are widely used to modify and control the processing properties of hydraulic bonded systems.

The Role of Granulometry and Additives in Optimising the Alumina Matrix in Low Cement Castables

Fine particles play a major role not only in the flowing characteristics of castables but also in the final properties of the castable in application.

The Enhanced Formation of Magnesium-Silica-Hydrates (M-S-H) Phase in Magnesia Castables

Magnesium-silica-hydrates (M-S-H) is regarded as an ideal bonding phase in magnesia castables due to its bonding strength and progressive dehydration behaviour over a wide temperature range during the heating-up stage.

Al2O3–SiO2 Nano-Bonded Castables Containing a Boron-Based Sintering Additive

A suitable alternative to reducing the starting sintering temperature of ceramic compositions is based on using small contents of mineralizing compounds that may speed up the reaction rate and/or induce...

High Temperature Evaluation of Mechanical Properties of Refractory Castables: Impact of Eutectic Aggregates and Testing Methods

Enhancing toughening mechanisms in ceramic technology is a key point for refractory castable formulation optimization.

Design of Self-Flow Chemically-Bonded Castables

The strength derived by using phosphate-based binders is related to the in situ generation of new phases, which takes place during the refractories’ initial processing steps.

Strength Evolution and Corrosion Resistance of a Cement-Free Al2O3-Castable Containing a Novel Hydraulic Binder Based on α-Alumina

An alternative no-cement-binder system based on reactive α-alumina and magnesia (NC-Binder) for the formulation of no cement castables has recently become commercially available under the brand name NABACAST®.