Monolithic refractory is the name normally given to all unshaped refractory products, the word monolithic coming from the word monolith meaning 'big stone'. Monolithic refractories are special mixes or blends of dry granular or cohesive plastic materials used to form virtually joint free linings. Monolithic refractories or Monolithics are those, which have no definite shape. these are the refractories which can be moulded or can be given any shape as. Jump to Types of monolithic refractories - Plastic refractories. These are monolithic refractory materials, which are tempered with water or added with a binder. They have sufficient plasticity to be pounded or rammed into place. Ramming refractories. These materials are very similar to plastic refractories though are much stiffer mixes.‎Refractory materials · ‎Classification of refractory · ‎Based on method of.


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Monolithic Refractory Solutions | Morgan Thermal Ceramics

Formulations available include low cement, medium cement, aluminium resistant, clay bonded, phosphate bonded, dry vibratory and special formulations for custom applications. The main features of our monolithic products are: When monolithic refractories are used as the primary furnace lining, they monolithic refractory usually held in place with either ceramic or high temperature steel anchors.

Each method of anchoring has advantages, depending upon furnace conditions and installation techniques. Subsequent to the installation and curing, monolithic refractories monolithic refractory a carefully controlled dry-out schedule. This causes the binder, filler and aggregate to sinter producing a strong material.

One consequence of not controlling the dry-out schedule is explosive spalling.

Monolithic Refractories |

Explosive spalling of monolithic linings is monolithic refractory problematic to refractory installers and furnace operators, costing monolithic refractory loss in revenue from down time and repair work. Explosive spalling is believed to be caused by water trapped within the pore structure of cementitious materials, which becomes heated rapidly, forming steam with very high vapour pressure.


It is supposed that the steam in combination with thermal stresses developed during the heating causes catastrophic failure of the structure. Types of monolithic refractories Common usage divides the monolithic refractories in the following groups.

Fig 1 shows monolithic refractory four major monolithic refractory groups. Fig 1 Major monolithic refractory groups Castable refractories Castable by monolithic refractory implies a material of hydraulic setting in nature.

These are the materials that contain cement binder usually aluminate cement, which imparts hydraulic setting properties when mixed with water. Following the heat-up monolithic refractory the material the binder either transforms or volatilizes facilitating the formation of a monolithic refractory bond.

The most common binder used in castables is high alumina cement.

  • Monolithic Refractory Solutions

Other binders that are often used include hydratable alumina monolithic refractory colloidal silica. These materials are installed by casting and are also known as refractory concretes.


Insulating castables are specialized monolithic refractories that are used on the cold face of applications. Monolithic refractory are made from lightweight aggregate materials such as vermiculite, perlite, extend-o-spheres, bubble alumina and expanded clay.

Their main function is to provide thermal insulation. They are typically of low density monolithic refractory low thermal conductivity.

monolithic refractory Insulating refractories have inferior mechanical strength to that of conventional castables. Plastic refractories Plastic refractories are used to form refractory monolithic linings in various kinds of furnaces. They are especially adaptable for making quick, economical emergency repairs.

Refractory - Wikipedia

These refractories are easily rammed monolithic refractory any shape or contour. Monolithic refractory refractories are mixtures of refractory aggregates and cohesive clays which is prepared in stiff plastic condition at the proper consistency for use without further preparation.

During application, the blocks are sliced into pieces and are rammed or poured into place with pneumatic rammer.

Plastic refractories can also be pounded into place with a mallet.

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