Low Strength Concrete Water Reducer with Naphthalene Sulfonate

• Customization: Available
• Appearance: Powder
• Application: Concrete Admixture
• Model NO.: NWR50
• Chemical Composition: Polyacrylate
• Setting Time: Extended Setting Time
• Type: High-range Water-reducing Agent
• Water Reduction Rate: 20%-30%
• Transport Package: Bag
• Specification: 25kg/Bag
• Trademark: Sidleychem
• Origin: China
• Package Size: 50.00cm * 30.00cm * 10.00cm
• Package Gross Weight: 25.250kg

Product Description

Product Description

NWR50 - Retarding Naphthalene-Based Water Reducer for Low-Strength Concrete

NWR50 is an economical, chloride-free naphthalene sulfonate formaldehyde condensate water reducer, specifically formulated for low-strength concrete applications. Complying with ASTM C494 Type B & D standards, it offers reliable retardation and water reduction for cost-sensitive projects without compromising on essential performance.

Why Choose NWR50?

1.Lowest Price Point (¥3,600/RMB) – Most affordable water reducer in Sidley's catalog
2.Simplified Compliance – Meets ASTM standards without over-engineering
3.No Technical Overhead – Ideal for users without advanced concrete knowledge
4.Proven Reliability – Compatible with all Portland cements and common additives

Specification

	Feature	Benefit
Key Features & Benefits	ASTM C494 Type B&D	Certified retardation & water reduction, ensuring consistent performance
	Chloride-Free Formula	Zero risk of steel corrosion, safe for reinforced concrete
	Low Dosage (150–500g/100kg)	Reduces cost per cubic meter, ideal for budget-conscious projects
	Extended Workability	Retards setting by 1-3 hours, ideal for hot climates (>35°C)
	Easy to Use	Liquid form ready to dispense, no complex pre-mixing required
Technical Specifications	Appearance	Brown liquid
	pH	5±2
	Density	1.16–1.18 g/cm³
	Chloride Content	0% (Chloride-Free)
	Dosage	150–500g per 100kg cement
	Shelf Life	12 months
	Packaging	200L PE Drum / 1000L IBC Tank

Recommended Applications

Target Applications
1. DIY Concrete Projects (e.g., garden paths, small slabs)
2. Low-Strength Concrete (≤C30) (e.g., rural construction, non-structural elements)
3. Small Precast Components (e.g., concrete blocks, paving stones)
4. Repair & Maintenance Work (e.g., patching, temporary structures)
5. High-Temperature Environments (e.g., summer construction where retardation is critical)

Packaging & Shipping

Package Type	Volume	Weight (Approx.)	Pallet Configuration
PE Drum	200 L	240 kg	4 drums/pallet (960 kg)
IBC Tank	1000 L	1200 kg	1 IBC/pallet (1200 kg)
Custom Bulk	≥5000 L	Varies	Tanker truck (20,000 L max)

Storage Conditions

1.Temperature: Store at 10°C to 35°C - avoid freezing or prolonged exposure to >40°C
2.Environment: Keep in original sealed containers in a dry, shaded area
3.Stacking: Maximum 2 layers for drums, 1 layer for IBC tanks
4.Shelf Life: 12 months from production date when stored properly
*Special Notes:

 Product may settle over time - mix gently before use if needed
 Keep away from direct sunlight and oxidizing agents

Shipping Information
HS Code	3824409000 (China) / 3824.40.6000 (USA HTS)
Transport Status	Non-Hazardous(Not regulated for transport)
UN Number	None required
Shipping Class	General cargo
Lead Time	7-14 days after order confirmation
Global Delivery	Available to major ports worldwide

Company Profile

FAQ

Q1: Is NWR50 chloride-free? Does it cause steel corrosion?
A: Yes, NWR50 is completely chloride-free and poses no risk of steel corrosion. It is safe for use in reinforced concrete structures.

Q2: Does NWR50 have retarding properties? How long does it extend setting time?
A: Yes, NWR50 is a retarding water reducer compliant with ASTM C494 Type B&D. It typically extends initial setting time by 1-3 hours depending on dosage and ambient temperature (effect is more pronounced in hot climates >35°C).

Q3: What is the recommended dosage for DIY concrete projects?
A: For typical DIY applications (e.g., garden paths, small slabs), we recommend starting with 200g per 100kg of cement. Adjust within 150-500g based on desired workability and setting time.

Q4: Can NWR50 be used with other admixtures?
A: Yes, NWR50 is compatible with common concrete additives including defoamers, air-entraining agents, and pigments. For complex formulations, we recommend conducting trial mixes first.

Q5: What is the shelf life and how should I store this product?
A: NWR50 has a 12-month shelf life when stored in its original sealed container at 10-35°C. Avoid freezing and direct sunlight. Gentle mixing is recommended if settlement occurs during prolonged storage.

Q6: Is this product suitable for high-strength concrete?
A: NWR50 is optimized for low-strength concrete (≤C30). For higher strength applications (≥C35), we recommend our PCE-based superplasticizers such as PCE1015L or PCE1025L.

Q7: How does NWR50 compare to more expensive PCE-based water reducers?
A: While PCE-based products offer higher water reduction (25-35%) and are better for high-strength applications, NWR50 provides cost-effective performance for low-strength concrete with adequate water reduction (15-20%) and excellent retardation at approximately one-third the cost.