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AboutHoude Group is a high-tech enterprise specializing in engineering building materials. It actively promotes the research, development, and production of new materials, new processes, and new technologies. It is a well-known Chinese engineering building materials Brand company with independent intellectual property rights and core innovative products.
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CaseHoude Group has been deeply cultivating overseas markets, successively establishing companies in Dubai, Hong Kong, Malaysia, Pakistan and other regions. It has good project cooperation in dozens of countries worldwide, with projects spanning Asia, Africa, and Europe. Its business scope includes various engineering fields such as highways, railways, airports, bridges, ports, and hydropower stations.
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ProductsHoude Group holds independent intellectual property rights and multiple iOS certifications. It independently researches and produces several series of high-grade, high-quality engineering and construction materials, including Houde Brand cement concrete admixtures, asphalt concrete admixtures, engineering fibers, and geosynthetic composite materials. These high-quality products have been consistently well-received by numerous construction supervision units.
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Industrial BaseThe company integrates industrial bases such as concrete admixtures and civil composite materials, relying on internationally leading research and development technology and intelligent production processes, to build an industrial system covering the entire chain of research and development, production, and sales. Driven by technology, we continuously provide green and reliable comprehensive solutions for global infrastructure construction, and strive to become a leading enterprise in the fields of engineering materials and intelligent equipment.
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Open CollaborationWe actively open and share our resources and platforms, welcoming companies and individuals to actively contact us for agency and cooperation on products, markets, technology, and resources.
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TalentHuman capital is the most precious asset of Houde. We have always attached great importance to employee development, allowing employees' abilities to develop more focused and clearly. A free and inclusive cultural atmosphere allows you to develop freely; your voice will be heard. Here, you will encounter not just colleagues, but also partners who grow side-by-side.
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AboutHoude Group is a high-tech enterprise specializing in engineering building materials. It actively promotes the research, development, and production of new materials, new processes, and new technologies. It is a well-known Chinese engineering building materials Brand company with independent intellectual property rights and core innovative products.
-
CaseHoude Group has been deeply cultivating overseas markets, successively establishing companies in Dubai, Hong Kong, Malaysia, Pakistan and other regions. It has good project cooperation in dozens of countries worldwide, with projects spanning Asia, Africa, and Europe. Its business scope includes various engineering fields such as highways, railways, airports, bridges, ports, and hydropower stations.
-
ProductsHoude Group holds independent intellectual property rights and multiple iOS certifications. It independently researches and produces several series of high-grade, high-quality engineering and construction materials, including Houde Brand cement concrete admixtures, asphalt concrete admixtures, engineering fibers, and geosynthetic composite materials. These high-quality products have been consistently well-received by numerous construction supervision units.
-
Industrial BaseThe company integrates industrial bases such as concrete admixtures and civil composite materials, relying on internationally leading research and development technology and intelligent production processes, to build an industrial system covering the entire chain of research and development, production, and sales. Driven by technology, we continuously provide green and reliable comprehensive solutions for global infrastructure construction, and strive to become a leading enterprise in the fields of engineering materials and intelligent equipment.
-
Open CollaborationWe actively open and share our resources and platforms, welcoming companies and individuals to actively contact us for agency and cooperation on products, markets, technology, and resources.
-
TalentHuman capital is the most precious asset of Houde. We have always attached great importance to employee development, allowing employees' abilities to develop more focused and clearly. A free and inclusive cultural atmosphere allows you to develop freely; your voice will be heard. Here, you will encounter not just colleagues, but also partners who grow side-by-side.
Alkaline-free rapid hardener
HD-SN2 Alkali-Free Rapid Hardening Agent
I. Product Overview
The alkali-free powder rapid hardening agent is a high-performance powder rapid hardening agent used in sprayed concrete. It can be used directly for dry spraying or dissolved in water and converted into an alkali-free liquid rapid hardening agent for wet spraying. The alkali-free powder rapid hardening agent not only reduces transportation costs and facilitates transportation but also significantly extends the shelf life. Its liquid product has high performance, can accelerate the chemical reaction rate of cement slurry, making the mortar or concrete containing this product quickly solidify, improve early strength, and there is no shrinkage in the later stage.
This series of products conforms to the national standard GB/T 35159-2017 "Rapid Hardening Agent for Sprayed Concrete", British Standard BS EN 934-5 and American Standard ASTM C1141/C1141M-08 and other relevant standards.
II. Scope of Application
The HD-SN2 series products have excellent properties such as strong cement adaptability, rapid solidification, high early strength, and extremely low rebound rate of wet-sprayed concrete. They are widely used in mining, hydropower stations, expressways, railway tunnels, roadways, and caverns.
III. Product Advantages and Characteristics
1 .Improve setting time. The initial setting time of the cement slurry of the HD-SN2 series products is no more than 3 minutes, and the final setting time is no more than 10 minutes.
2 .Improve early strength. The 28d compressive strength of the cement mortar of the HD-SN2 series products can be more than 100%.
3 .Excellent workability. In the application of sprayed concrete, the HD-SN2 series products have excellent cohesiveness and extremely low dust generation, resulting in a good working environment.
4 .Improve durability. The HD-SN2 series products are alkali-free and can improve the service life of sprayed concrete.
5 .The HD-SN2 series products are alkali-free and contain only trace amounts of chloride ions, which will not cause steel corrosion. They are non-toxic and harmless to humans and the environment.
6 .Strong cement adaptability. The performance of the HD-SN2 liquid rapid hardening agent can be adjusted by adjusting the mixing ratio of HD-SN2 and water and adding some additives as needed.
IV. Mixing Ratio
The conventional recommended mixing ratio of HD-SN2/(WATER+HD-SN2) is 0.30~0.60. The specific mixing ratio depends on the performance of the cement and project requirements.
V. Technical Parameters
VI. Dosage
The dosage of the HD-SN2 powder product is 2%~6%. The general dosage of the alkali-free liquid rapid hardening agent after water dilution is 2%~12% of the total weight of the cementitious material. The optimum dosage should depend on the results of on-site tests.
VII. Compatibility with Other Admixtures
The HD-SN2 series products can be used in combination with other concrete admixtures. When used in combination with other admixtures, the compatibility of this series of rapid hardening agents with other admixture products should be tested under the guidance of technical engineers, and the optimal mixing ratio of this series of rapid hardening agents and other admixture products should be obtained through experimental optimization.
VIII. Packaging and Storage
The HD-SN2 series products are in powder or liquid form, packaged in polyethylene plastic bags. The outer packaging can be adjusted according to user requirements. The packaging bags should be protected from damage and moisture. The HD-SN2 powder product can be diluted with water into HD-SN2 liquid product, and the liquid product can be packaged in tons or drums. The product should be stored in a cool, dry, and ventilated place. The shelf life of the powder product is more than 2 years, and the shelf life of the alkali-free liquid rapid hardening agent after dissolving in water is 12 months. After the expiration date, it can still be used if it passes the test inspection.
IX. Health and Safety
The product is not flammable or explosive, non-toxic, and environmentally friendly. Please wear gloves and eye protection during operation. If the product splashes on the skin, please wash it with soap. Wash with clean water after work.
Headquarters: 7th Floor, Tower B, R&F Center, Tongzhou District, Beijing
Zip Code: 101100
Telephone:010-58859568
Fax: 010-81580920
E-mail:bjhoude@chinahoude.com
