High Alumina Castables · ALUCORE

ALUCORE — Low-Cement, High-Strength Castables

Advanced alumina-based castables designed for rotary kilns, ladles, and furnace linings. High hot strength, low porosity, and excellent thermal-shock resistance for longer, stable campaigns.

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Product Overview

ALUCORE utilizes low-cement and ultra-low-cement technology with high-reactivity alumina and optimized dispersants. The matrix develops a dense, strong ceramic bond after heat-up, delivering durability across rapid temperature cycles.

Suitable for steel, cement, and non-ferrous plants needing reliable monolithic linings with quick installation and dry-out.

Key Benefits

  • High CCS/MOR with low porosity
  • Excellent thermal-shock performance
  • Good abrasion and slag resistance
  • Casting, self-flow, or gunning variants

Typical Specifications

PropertyValue
Al₂O₃60–90%
CaO (as cement)≤ 2.5% (LCC) · ≤ 0.5% (ULCC)
Bulk Density (110 °C)2.6–3.0 g/cc
Apparent Porosity14–18%
CCS @110 °C≥ 500 kg/cm²
Service Temperature1500–1750 °C
Water Addition4–6% (casting) · 5–7% (self-flow)

Representative values. Replace with certified lab data when finalized for each grade.

ALUCORE Grades

ALUCORE 70 LCC — Kilns & General Duty

~70% Al₂O₃ low-cement castable for rotary kilns, burner pipes, and furnace walls.

  • Good thermal-shock and abrasion resistance
  • Cast/vibe and self-flow versions
ALUCORE 80 ULCC — High Strength / Low Porosity

Ultra-low-cement system for higher hot strengths and reduced CaO for corrosion resistance.

  • Preferred for steel ladles, tundish working areas, and EAF delta repairs
  • Excellent density and oxidation resistance
ALUCORE G — Gunning / Rapid Repairs

Modified binder and grain curve for rebound-controlled gunning with strong adhesion.

  • Fast turnarounds, minimal drying time
  • Used in riser ducts, cooler bull-nose, and patching

Installation & Curing

  1. Pre-dry shell; fit anchors as per drawing (≈ 6–9 anchors/m²).
  2. Mix with potable water 4–6% until flowable; avoid over-watering.
  3. Place by vibration; finish within recommended working time.
  4. Initial cure 24 h at ambient under plastic cover; avoid drafts.

Dry-out Schedule

  1. 110 °C for 6 h
  2. 300 °C for 4 h
  3. 600 °C for 4 h
  4. Controlled ramp to operating temperature; hold as required

Specify ALUCORE for Your Next Shutdown

Share shell drawings and duty cycle. We will size anchors, mix type, and dry-out profile.

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