Expansive Agents
CaO Expansive Agent
Fast early expansion · dry-shrinkage compensation · good strength
Expansive Agents
Composite Expansive Agent
- Composite
- Balanced
- 25 kg woven bag
- Volume discount
A composite expansive agent balancing early- and mid-stage expansion, compatible with a wide range of cements for greater versatility.
Balanced early/mid expansion · fits various cements · versatile
- Form
- Powder
- Recommended dosage
- 8%–10% of cementitious material
Overview
A composite expansive agent optimally blending sulfoaluminate and CaO to balance early- and mid-stage expansion with broad adaptability.
Key benefits
- Balanced early/mid expansion
- Fits various cements
- Versatile and easy to use
Specifications
Specifications
| Appearance | Grey-white powder |
| Restrained expansion | 0.03%–0.07% |
| Chloride | ≤ 0.05% |
| Alkali | ≤ 0.75% |
| Cement compatibility | Broad |
Standards
Documents & data sheets
TDS, COA and MSDS are issued with every batch. Click a document and tell us the grade — we reply within 24 hours.
Application scenarios
- Shrinkage-compensating concrete
- Underground structures
- Mass concrete
- General works
Product Q&A
Why composite?
Single components rarely balance early/mid expansion; composite offers broader adaptability.
Dosage?
8%–10% of cementitious material.
Related products
Expansive Agents
Sulfoaluminate Expansive Agent
Stable expansion · low later shrinkage · waterproofing
Retarders
Lignosulfonate Retarder
Cost-effective · mild water-reducing · general compounding