Introducing our groundbreaking Alkali-Free Quick-Setting Agent for concrete, engineered with a cutting-edge processing method. This innovative compound comprises 30~65 parts aluminum sulfate, 2~8 parts organic amine, 1~5 parts suspending agent, and 20~35 parts water by weight. The production process involves finely grinding aluminum sulfate to pass through an 80~300 mesh sieve. This is then meticulously blended with organic amine, suspending agent, and water under precisely controlled temperatures of 40~100ºC, followed by emulsification to produce the desired alkali-free liquid quick-setting agent. Additionally, grinding aluminum sulfate and organic amines to the same mesh specification results in a superior alkali-free dry powder agent. Our product is distinguished by its absence of alkali and irritants, superior adhesion, minimal rebound, high strength retention, and remarkable impermeability, making it ideal for shotcrete applications. Enhance your working environment and maximize market value with our advanced solution.
Discover our state-of-the-art non-alkali quick-setting agent, defined by its key ingredients: aluminum sulfate and organic amine, combined in a weight ratio of 30-65:2-8.
| Item |
Performance Indicator |
| Solid Content, % |
≥42.0 |
| Density (at 22°C), g/cm³ |
1.42±0.02 |
| Chloride Ion Content, % |
≤1.0 |
| Total Alkalinity, % |
≤1.0 |
Performance Highlights
1. Appearance: A slightly yellow, uniform liquid.
2. Features: Environmentally friendly, alkali-free, and free from harmful substances. Surpasses multiple JC477 - 2005 standard specifications. Offers adjustable solidification times based on admixture amounts for safe and convenient usage.
3. Applications: Ideal for mining shafts, railroad tunnels, diversion culverts, underground engineering, and other shotcrete construction and repair works. This agent accelerates project timelines and boosts work efficiency.
Accelerate project timelines while enhancing efficiency and quality with our solution.
4. Usage Instructions and Precautions:
a. Conduct adaptability tests on the cement and materials before use to determine the optimal mixing amount, typically 3-6% of the cement weight, with a water-cement ratio of 1:0.4-0.45 and a gray-sand ratio of 1:2-3.
b. Strictly control the water-cement ratio during construction. An excessive water-cement ratio can extend solidification time and affect performance.
c. Adjust the amount of water mixed with the product accordingly.
d. Post-construction, concrete should be reinforced by splashing water to enhance strength.
5. Main Technical Performance Metrics and Test Results:
Functionality
Our product demonstrates exceptional compatibility with cement, ensuring rapid setting and hardening. Initial setting time is less than 3 minutes, with final setting occurring in under 8 minutes. The 1-day compressive strength reaches 7Mpa, and the 28-day compressive strength ratio remains at or above 75%, meeting JC477-2005 standards for shotcrete accelerating agents.
Using this agent results in minimal concrete strength loss, low rebound rates, and high jet thickness, contributing to improved quality and durability in shotcrete engineering. This provides clear technical and economic advantages.
Adaptability
Our Quick Set Alkali-Free Liquid Accelerator Spray Concrete Setting Agent is the ultimate solution for concrete construction and leakage prevention across diverse and demanding applications. Ideal for underground projects such as mine engineering, coal mines, shaft engineering, and mine room engineering, it also excels in highway and railroad construction, traffic tunnel engineering, and urban development. Whether for spray anchor support concrete, national defense projects, water conservancy works, or rapid ground cement concrete construction, this product ensures swift emergency rescue, repair, and reinforcement.
Usage and Attention Guidelines
(1) Recommended Dosage: 3-6%, typically around 5-6%.
(2) When utilizing this state-of-the-art alkali-free liquid quick-setting agent, it is imperative to ensure that the cement used is fresh and fully compatible. Adjust the dosage meticulously based on prevailing environmental conditions and accumulated experience, while maintaining an optimal temperature range of 5-35 degrees Celsius. This guarantees superior results every time.
Maintain a precise water-cement ratio of 0.4-0.45, being careful to avoid any excess. The mixture should be free from flowing ejecta and discoloration spots, exhibiting a uniform color for flawless application and superior performance.
Adhere strictly to rigorous safety protocols to ensure the well-being and protection of all laborers during the use of this product.
Storage Information
Store this high-quality product in durable blue plastic buckets, each with a capacity of approximately 300kg. For larger-scale requirements, ton-sized barrels are available to meet bulk storage needs.
With an impressive shelf life of six months, this product remains effective even if sediment forms at the bottom. Simply shake the container to mix uniformly. As long as the sediment does not compromise performance, the product continues to deliver exceptional results.
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