Concrete additives & specialty materials
Concrete additives & specialty materials
【XT30】Early Strength Cement
XT30 High Early Strength Cement is a rapid-setting CSA-based binder that develops >20 MPa compressive strength in 3 hours, ideal for fast-track concrete repairs and precast production. Fast Setting Time – Initial set in 15 minutes, final set within 30 minutes Early Strength Gain – ≥20 MPa in 3h, ≥50 MPa in 1d, ≥90 MPa in 28d Crack-Resistant Micro-Expansion – Minimizes shrinkage and improves durability Eco-Friendly & Low Carbon – Reduces OPC use by 20–50%, chloride-free and low-alkali
Review technical parametersSINO-SINA【XT30】Early Strength CementVerified product main image pending
Product overview
Performance and application overview.
XT30 is a high-performance, eco-friendly early-strength cement additive developed by SINO-SINA. Produced using C-A-Š mineral fusion technology, it blends bauxite, by-product gypsum, limestone, and high-alumina solid waste into a low-carbon, highly reactive binder.
XT30 is designed as a partial replacement for Portland cement and a viable alternative to CSA cement (Calcium Sulfoaluminate Cement). It accelerates early hydration, delivers rapid strength gain, and suppresses early cracking—all while maintaining long-term strength stability without the risk of strength regression common in CSA-based systems.
XT30 vs. CSA Cement – What's the Difference?
While both XT30 and CSA cement offer fast-setting and early-strength characteristics, XT30 stands out as a greener and more compatible solution for regular concrete and mortar systems. Here's how they compare:
Feature XT30 Early Strength Additive CSA Cement (Calcium Sulfoaluminate Cement)
Material Type Additive / Partial cement replacement Full cement replacement (special binder)
Application Method Replace 20–50% of OPC Used as main binder (may replace 100% OPC)
Early Strength ≥30 MPa @ 3h (with OPC) ≥30 MPa @ 3h (pure)
Strength Stability No regression; long-term strength improves May experience later strength drop without optimization
Shrinkage/Cracking Micro-expansive; good crack control Moderate shrinkage; depends on formulation
Chloride / Alkali Content Chloride-free, low alkali (safe for rebar) May contain higher sulfate or alkali levels
Environmental Profile Low carbon, waste-utilizing binder Higher calcination energy & emissions
Ease of Use Compatible with OPC-based mixes; no major design change May require new mix designs and setting control
Technical parameters
Original product values for technical screening.
Values are reproduced without keyword editing. Final selection must follow the current approved technical data sheet, test method and project conditions.
The source-page headings and values are retained as published. Do not interpret an unlabeled value as a guaranteed minimum.
| Property | Requirement | Typical Result |
|---|---|---|
| Specific Surface Area (m²/kg) | ≥ 480 | 500 |
| Initial Set Time (min) | ≤ 20 | 15 (adjustable) |
| Final Set Time (min) | ≤ 40 | 23 (adjustable) |
| Flexural Strength - 3h (MPa) | ≥ 4.0 | 4.5 |
| Compressive Strength - 3h (MPa) | ≥ 20.0 | 25.0 |
| Compressive Strength - 1d (MPa) | ≥ 50.0 | 56.0 |
| Compressive Strength - 28d (MPa) | ≥ 60.0 | 92.0 |
Product usage
Application and installation guidance.
Mortar Fluidity & Setting Time Comparison (Water-Binder Ratio ~0.44-0.48)
Strength Comparison (MPa)
Dosage & Mixing Guidelines
Recommended replacement ratio: 20–50% of OPC with XT30.
Recommended replacement ratio: 20–50% of OPC with XT30.
Use potable water; water-to-binder ratio between 0.40–0.48 depending on mix design.
Use potable water; water-to-binder ratio between 0.40–0.48 depending on mix design.
Mix thoroughly using a forced-action mixer; dry mix 10 seconds, then wet mix 3 minutes.
Mix thoroughly using a forced-action mixer; dry mix 10 seconds, then wet mix 3 minutes.
For cold weather, warm mixing water up to 65°C is recommended.
For cold weather, warm mixing water up to 65°C is recommended.
Pour within 30 minutes of mixing; do not use material if workability drops below specification.
Pour within 30 minutes of mixing; do not use material if workability drops below specification.
Packaging & Storage
Packaged in 25 kg moisture-proof composite bags.
Packaged in 25 kg moisture-proof composite bags.
Shelf life: 3 months when stored in cool, dry, ventilated areas.
Shelf life: 3 months when stored in cool, dry, ventilated areas.
Keep bags sealed and protected from moisture and frost.
Keep bags sealed and protected from moisture and frost.
Technical enquiry
Check whether 【XT30】Early Strength Cement matches your project.
Include foundation type, grout geometry and volume, strength ages, flow requirement, temperature, standards, placement distance and equipment.