JDJSJ-SAK 01: High-Efficiency Water Reducing Agent

Technical Introduction

JDJSJ-SAK 01 is a polycarboxylate ether (PCE)–based high-range water-reducing admixture designed for modern concrete applications that demand excellent fluidity, low water-to-cement ratios, and high early and ultimate strengths. Its comb-like molecular structure provides powerful electrostatic repulsion and steric hindrance effects, dispersing cement particles efficiently.

By significantly reducing mixing water while maintaining workability, JDJSJ-SAK 01 enables higher concrete density, improved durability, and superior strength development. It is suitable for a wide range of concrete grades, including high-performance concrete (HPC), self-compacting concrete (SCC), and precast concrete.

Applications

1. High-Performance Concrete

   • Delivers low water-to-cement ratios for increased strength and durability.

2. Precast and Prestressed Concrete

   • Enhances mold filling and surface finish quality.

3. Self-Compacting Concrete (SCC)

   • Provides excellent flow without segregation.

4. Mass Concrete Structures

   • Reduces heat of hydration by enabling lower cement content.

5. Pumped Concrete

   • Improves pumpability and reduces pipe friction.

Advantages

• High Water Reduction Rate – Up to ≥30%, leading to higher compressive strength.

• Improved Workability – Excellent slump and flow retention within the first 30–60 minutes.

• Compatibility – Suitable for various cements and supplementary cementitious materials (SCMs).

• Durability Enhancement – Lower permeability, better resistance to freeze-thaw and chloride ingress.

• Low Alkali and Chloride Content – Minimizes risk of steel reinforcement corrosion.

Typical Parameters

FAQs

Q1: What is the main benefit of JDJSJ-SAK 01 compared to normal water reducers?
A1: JDJSJ-SAK 01 offers much higher water reduction capability (≥30%), which enables stronger, more durable concrete without increasing cement dosage.

Q2: Can it be used in both precast and ready-mix plants?
A2: Yes, it is suitable for both, offering fast strength gain for precast and excellent workability for ready-mix.

Q3: Does it affect setting time?
A3: It has minimal impact on setting time at normal dosage; any adjustments can be made by combining with accelerators or retarders.

Q4: Is JDJSJ-SAK 01 environmentally friendly?
A4: Yes, it is formaldehyde-free, low VOC, and meets international green building chemical requirements.

Q5: How to determine the optimal dosage?
A5: Typical dosage is 0.2–0.8% of cementitious material by weight, but field trials are recommended to fine-tune performance.

If you want, I can now prepare a side-by-side product matrix comparing JDJSJ-SAK 01 (high-efficiency), JDJSJ-SAK 03 (slump retaining), and JDJSJ-AK 02 (early strength) so you have a clear technical sales sheet for your customers. That way buyers can pick the right admixture instantly.