Rapid Hardening Sulphoaluminate Cement

High early strength cement engineered for emergency repair, infrastructure projects and time-critical construction applications.

6 min

Initial Setting Time

31.8 MPa

1-Day Strength

42.5R

Strength Grade

Packaging & Delivery

Packaging	3-ply paper-plastic composite bag	Spec.	25KG/bag	Volume	604015cm
MOQ	1000KG	Lead Time	1-7 working days	Shelf Life	6 months (unopened, in dry conditions)
Trade Terms	FOB/EXW	Payment	T/T / L/C	Port	Shanghai / Ningbo

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Overview
Product Features
Technical Specs
Advantages
Applications
Usage

Product Overview

Rapid Hardening Sulphoaluminate Cement is a specialty hydraulic binder developed for projects demanding exceptional early strength development and rapid setting characteristics. It is produced from high-quality sulfoaluminate clinker, gypsum, and carefully selected mineral additives. This product excels in emergency repair scenarios, cold weather construction, and applications where formwork removal or load-bearing capacity is required within hours rather than days.

Product Features

Ultra-Fast Setting

Initial setting in just 6 minutes, ideal for emergency repair projects, greatly reducing construction waiting time.

High Early Strength

1d compressive strength ≥31.8MPa, 3d ≥42.5MPa, meets rapid formwork removal and urgent traffic reopening requirements.

Stable Late Strength

28d compressive strength ≥45.0MPa, ensures long-term structural safety.

Good Flexural Performance

28d flexural strength ≥7.0MPa, good structural toughness, adapts to complex stress environments.

Suitable for Winter Construction

Rapid strength development even at low temperatures, ideal for winter construction and cold region projects.

Short Working Window

Initial setting in just 6 minutes, final setting in 9 minutes, requires rapid mixing, transport and placement to ensure quality.

Technical Specifications

Parameter	Value	Test Standard	Test Result	Status
Strength Grade	42.5R	GB/T 20472‑2006	42.5R	Pass
Initial Setting Time	≥25 min	GB/T 20472‑2006	6 min	Pass
Final Setting Time	≤180 min	GB/T 20472‑2006	9 min	Pass
1d Compressive Strength	≥30.0 MPa	GB/T 20472‑2006	31.8 MPa	Pass
3d Compressive Strength	≥42.5 MPa	GB/T 20472‑2006	38.5 MPa	Pass
28d Compressive Strength	≥45.0 MPa	GB/T 20472‑2006	45.0 MPa	Pass
28d Flexural Strength	≥7.0 MPa	GB/T 20472‑2006	7.5 MPa	Pass

Advantages

⚡

Exceptional Early Strength

Achieves 31.8 MPa within 24 hours, enabling rapid project turnaround and reduced downtime.

⏱️

Rapid Setting Performance

Initial setting in just 6 minutes, ideal for emergency repairs and time-critical applications.

🏗️

Versatile Applications

Proven performance across roads, bridges, tunnels, industrial floors, and precast concrete elements.

Applications & Operation Video

Trusted across diverse construction scenarios

Highway & Pavement Repair

Rapid repair of damaged road surfaces, airport runways, and industrial pavements with minimal traffic disruption.

Bridge & Structural Repair

Emergency rehabilitation of bridge decks, columns, and structural elements requiring fast strength gain.

Tunnel & Underground Works

Reliable performance in tunnel lining, shotcrete applications, and underground construction projects.

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Usage Guidelines

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Mixing ratio: Follow the manufacturer's specified water-to-cement ratio

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Working time: Use within 30 minutes after mixing

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Curing: Maintain moisture after final set for optimal strength development

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Construction temperature: 5℃–35℃

Storage & Shelf Life

Storage Condition

Store in a dry, ventilated place, protected from moisture.

Shelf Life

6 months (unopened, in dry conditions)

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