HCSA High-Performance Concrete Expansive Agent (Clinker)

Name: HCSA High-Performance Concrete Expansive Agent (Clinker)
Brand: Zhengzhou City Jianwen Special Material Technology Co.,LTD
Availability: InStock

HCSA high-performance concrete expansion agent (clinker) is a cutting-edge, high-tech product developed under the direct guidance and support of leading officials and experts from the China Academy of Building Materials Research and the Waterproofing and Repair Materials & Engineering Technology Branch of the China Concrete and Cement Products Association. Leveraging our plant’s advanced production processes and proprietary scientific technologies, this product is the outcome of a science-and-technology collaboration between our company and the China Academy of Building Materials Research, conducted under the close supervision of Professor Zhao Shunzeng of the Academy. Its performance metrics comprehensively surpass international industry standards, making it a premium product that fills a critical gap in both domestic and global markets.

Classification:

Special cementitious material

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Detailed introduction

Implementation Standard: GB/T 23439-2017

　　 Product Overview:

HCSA high-performance concrete expansion agent (clinker) is a cutting-edge, high-tech product developed under the direct guidance and support of leading officials and experts from the China Academy of Building Materials Research and the Waterproofing and Repair Materials & Engineering Technology Branch of the China Concrete and Cement Products Association. Leveraging our plant’s advanced production processes and proprietary scientific technologies, this product is the outcome of a collaborative research project between our company and the China Academy of Building Materials Research, conducted under the close supervision of Professor Zhao Shunzeng of the Academy. Its performance metrics comprehensively surpass international industry standards, making it a premium product that fills a critical gap in both domestic and global markets.

　　 Performance Features:

◆ Excellent expansion performance: the 7-day restrained expansion rate in water can reach 0.15–0.2%, which is 4–8 times that of conventional expansion agents.

◆ The expansion rate is moderate: the constrained expansion ratio in 3-day water can reach 70–80% of the total expansion, and exceeds 85% by 7 days.

◆ It can still maintain a significant degree of expansion under completely dry conditions.

◆ Extremely stable long-term performance.

Technical Indicators:

Project		Type 100	Type 130	Type 160
Fineness	Specific surface area (m²/kg) ≥	200
	Residue on a 1.18 mm sieve (%) ≤	0.5
Setting time (min)	Initial setting time (min) ≥	45

	Final setting time (min) ≤	600
Expansion Limit (%)	7-day water ≥	0.100	0.130	0.160
	21d≥ in the air	-0.020	-0.010	-0.010
Compressive strength (MPa)	7d≥	22.5	22.5	22.5
	28d≥	42.5	38.0	35.0
Note: The limited expansion ratio in the table is mandatory; the remaining items are recommended.

　　 Scope of Application:

◆ Formulating various high-grade special mortars and grouting materials.

◆ Structural waterproofing works for concrete.

◆ Concrete crack-control engineering.

◆ Control of cracking and seepage in mass concrete.

◆ The use of cast-in-place concrete piles can significantly reduce material consumption and construction time.

　　 Packaging and Storage:

◆ Pack in moisture-proof plastic woven bags with liners or in ton bags.

◆ Net weight per bag: 50 kg or 1,000 kg.

◆ Store in a dry, cool environment.

◆ Store in a sealed container in a dry environment; shelf life is no less than 6 months. Use the entire contents after opening; if the product expires or becomes damp, its performance will be compromised and it must be retested and found compliant before use.