Ceramsite Insulating Castable
Lightweight Insulating CastablesCement & Building Materials

Ceramsite Insulating Castable

Ceramsite insulating castable with shale ceramsite aggregate, bulk density only 0.90 g/cm³ and conductivity ≤0.30 W/(m·K) to 1200℃. Ultra-light, low-conductivity monolithic insulation without joints.

Technical Data

Max. Service Temp.1200℃
Bulk Density0.90 g/cm³
Thermal Conductivity (500℃)≤0.30 W/(m·K)
CCS (110℃×24h)≥4 MPa

Description

Ceramsite Insulating Castable

Material System & Positioning

Ceramsite insulating castable uses expanded shale ceramsite aggregate with bulk density only 0.90 g/cm³, thermal conductivity ≤0.30 W/(m·K) at 500℃ and service up to 1200℃. Ultra-light, economical and jointless, it is Henan Songrui's cost-effective grade for cement preheater systems, boilers and other medium-low temperature insulation.

Key Performance

  • Ultra-light: 0.90 g/cm³, significantly reducing structural load.
  • Low thermal conductivity: effective insulation.
  • Economical: low raw material cost for large insulation projects.
  • Jointless: monolithic casting suits irregular shells and ducts.
  • Easy installation: adapts to complex shapes.

Applications

  • Cement: preheater cyclone and calciner insulation, kiln inlet chambers.
  • Power Boilers: boiler wall and duct insulation.
  • Steel & Iron: reheating and annealing furnace wall insulation.
  • General: backup insulation of industrial furnaces.

Selection Advice

Ceramsite grade suits insulation below 1200℃, never as a hot working layer. For higher-temperature insulation choose lightweight high-alumina or mullite grades; for even lower density and cost consider perlite grade.

Installation & Maintenance

Prevent aggregate segregation; mix and pour gently; heat up slowly per the low-temperature curve. Construction guidance available.

Quality Assurance

Henan Songrui New Refractory Materials Co., Ltd. (Xuanhua Town Industrial Park, Henan) is a 2024 Class A taxpayer and SRDI SME. For selection, quotation or installation guidance, contact Manager Zheng (17513376789 / 17513376789@163.com).

Key Features

  • Porous ceramsite aggregate, ultra-light and low-conductivity
  • Cast-in-place jointless insulation
  • Greatly reduces kiln steelwork load
  • For cement preheaters, cyclones and calciners
  • Easy installation for odd shells and duct linings
  • Prevent segregation; dry on a low-temperature curve

Typical Applications

Ceramsite insulating castable uses expanded shale aggregate, economical:

  • Cement: kiln hoods, cooler roof insulation, preheater insulation.
  • Power Boilers: boiler wall and duct insulation.
  • Steel & Iron: reheating and annealing furnace wall insulation.
  • General: backup insulation of industrial furnaces.
  • Advantage: low density (≤1.0 g/cm³), economical, service up to 1100℃.

FAQs

Features of ceramsite insulating castable?

Ceramsite aggregate, low density, economical for insulation below 1100℃.

Where is it used?

Kiln hoods, boiler walls, reheating furnace backup insulation.

For hot working layers?

No—limited strength and temperature rating; insulation backup only.

Get a Quote & Technical Support

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