Shrinkage-Compensating Mortar Additive

Product Details
Customization: Available
Grade Standard: Industrial Grade
Transport Package: 25kg/Bag
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  • Shrinkage-Compensating Mortar Additive
  • Shrinkage-Compensating Mortar Additive
  • Shrinkage-Compensating Mortar Additive
  • Shrinkage-Compensating Mortar Additive
  • Shrinkage-Compensating Mortar Additive
  • Shrinkage-Compensating Mortar Additive
  • Overview
  • Specifications
  • Application
  • Package and storage
  • Our Advantages
Overview

Basic Info.

Model NO.
EX-2
Specification
bag
Trademark
JUFU
Origin
China
Production Capacity
50000mt/Year

Product Description

Shrinkage-Compensating Mortar Additive

Product Description:

A high-performance calcium sulfoaluminate (CSA)-based expansive agent designed to compensate for drying shrinkage and thermal contraction in cementitious materials. It generates controlled expansion during hydration, enhancing concrete durability by preventing cracks in critical structures. Ideal for projects requiring dimensional stability and watertightness.

 
Specifications
 
Parameter Value
Main Composition Calcium Sulfoaluminate (CSA), Anhydrite
Expansion Rate (7d) 0.02%-0.10% (adjustable)
Setting Time Initial: 30-60 min, Final: ≤4 hrs
Alkali Content ≤0.5% (Low-alkali formula)
Particle Size 80-120 μm (Fine Powder)
Packaging 25 kg/bag or 1 ton/jumbo bag
 
Application

 

1. Concrete Structures

  • Waterproofing: Basements, reservoirs, swimming pools.

  • Infrastructure: Bridges, tunnels, high-speed rail tracks.

  • Repair: Crack injection grouts, patch mortars.
     

2. Precast & Prestressed Concrete

  • Pipes/Panels: Prevents shrinkage cracks during steam curing.

  • Post-Tensioning Ducts: Ensures full grout expansion.
     

3. Special Environments

  • Sulfate-Rich Areas: Marine structures, sewage plants.

  • Low-Temperature: Accelerates setting in cold weather.



  •  

Package and storage

 

  • Packaging: Moisture-proof laminated bags.

  • Shelf Life: 12 months in dry, ventilated conditions.


  •  

    Our Advantages
     

    -- Early Expansion: 70% expansion within 3 days.
    -- Low Corrosion: Chloride-free, safe for rebar.
    -- Compatibility: Works with Portland cement, fly ash, slag.


     

    Shrinkage-Compensating Mortar Additive
    Shrinkage-Compensating Mortar Additive
    Shrinkage-Compensating Mortar Additive

     

Tips:

  • Dosage: 8-12% of cement weight (varies by project).

  • Mixing: Add directly to dry mix; avoid prolonged mixing.


 

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