Introducing a revolutionary alkali-free concrete quick-setting agent and its advanced processing method. This compound consists of 30~65 parts aluminum sulfate, 2~8 parts organic amine, 1~5 parts suspending agent, and 20~35 parts water by weight. The innovative production involves grinding aluminum sulfate to pass an 80~300 mesh sieve and blending it with a mixture of organic amine, suspending agent, and water under controlled conditions of 40~100ºC. This mixture is then emulsified to obtain the desired alkali-free liquid quick-setting agent. Additionally, grinding aluminum sulfate and organic amines to the same mesh specification yields a high-quality alkali-free dry powder agent. Our product stands out with no alkali, no ***, no irritating odor, superior adhesion, minimal rebound, high late strength preservation, and exceptional impermeability. This makes it ideal for shotcrete applications, enhancing the working environment and presenting significant market value.
A state-of-the-art non-alkali quick-setting agent, distinguished by its primary components: aluminum sulfate and organic amine, in a weight ratio of 30-65:2-8.
Performance Highlights
1. Appearance: A slightly yellow, uniform liquid.
2. Features: Completely environmentally friendly, free from alkali and ***. Exceeds several specifications of the JC477 - 2005 standard. Adjustable solidification time based on the admixture amount, ensuring safe and convenient usage.
3. Applications: Perfectly suited for mining shafts, railroad tunnels, diversion culverts, underground engineering, and other shotcrete construction and repair works. This agent accelerates project timelines and enhances work efficiency.
Accelerate project timelines and enhance efficiency and quality.
4. Usage Instructions and Precautions:
a. Conduct an adaptability test on the cement and materials prior to use to determine the optimal mixing amount. Typically, this is 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. Strict control of the water-cement ratio during construction is essential. 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
This product showcases excellent compatibility with cement, ensuring rapid condensation and hardening. The initial setting time is under 3 minutes, with the final set in less than 8 minutes. A 1-day compressive strength reaches 7Mpa, and a 28-day compressive strength ratio remains at or above 75%, meeting JC477-2005 standards for shotcrete accelerating agents.
When using this agent, the concrete's strength loss is minimal, rebound rates are low, and jet thickness is high. This contributes to improved quality and durability in shotcrete engineering, offering 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 various demanding applications. Ideal for use in underground projects including 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 it's 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 using this alkali-free liquid quick setting agent, ensure the cement is fresh and compatible. Adjust the dosage based on environmental conditions and experience, maintaining a temperature range of 5-35 degrees Celsius.
Maintain a water-cement ratio of 0.4-0.45, avoiding excessive amounts. The mixture should exhibit no flowing ejecta, no discoloration spots, and a uniform color for optimal application.
Ensure rigorous safety protocols are followed to protect laborers during usage.
Storage Information
Store in blue plastic buckets, each holding approximately 300kg. Larger ton-sized barrels are also available for bulk needs.
The product has a shelf life of six months. If sediment forms at the bottom, shake the container to mix uniformly. As long as the sediment does not affect performance, the product remains usable.
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