Product introduction
ASD-2 is a new type of aliphatic superplasticizer. Compared with naphthalene superplasticizer, it has higher water reduction rate, especially when preparing high-performance and strong fluidity concrete with low water cement ratio, which reflects its advantages and better adaptability to cement; It can significantly improve the plasticity and reduce the slump loss, and the early strength enhancement effect is remarkable. When the water consumption remains unchanged, this product can be used to prepare high fluidity concrete, accelerate the pouring speed, facilitate vibration, save man hours, and has no significant impact on the setting time of concrete.
Technical performance:
1. The product has obvious water reducing and dispersing effect. When the dosage of water agent is 1% - 3%, the water reducing rate is 15% - 30%, which can improve the fluidity of cement paste under the condition of low water cement ratio.
2. It has better adaptability to cement varieties, significantly improved plastic retention performance and significantly reduced slump loss.
3. The product has early strength and remarkable reinforcement effect. Under the condition of the same cement dosage and slump, the concrete strength increases by 60% - 100% in one day and three days, 50% - 80% in seven days and 30% - 60% in 28 days, and the strength continues to increase in the later stage.
4. Under the condition of the same slump and keeping the original strength unchanged, participating in this agent can save about 20% of cement.
5. The product does not introduce air, has no significant impact on the setting time of concrete, and has wide adaptability to cement. It can comprehensively improve the main physical and mechanical properties of concrete, and greatly improve the compactness, impermeability and durability of concrete.
Usage and precautions:
1. Dosage: the dosage range of this product is 1% - 3%, and the common dosage is 1.5-2.5%.
2. Mixing method: the product shall be prepared to a given concentration in advance and then added with the mixing water, or mixed with the mixing water into the concrete, but the mixing time shall be extended for 30s; It can also be added 15-20 seconds later than the mixing water in the mixing process, which can make the effect of admixture more remarkable.
3. Using this product as the parent material and other components in line with national standards, admixtures such as retarding, air entraining and early strength can be prepared to fully meet the requirements of different engineering categories, construction technology, construction technology and temperature conditions.
4. Precautions: over mixing this product can improve the workability of concrete, but it will affect the setting time of concrete. Under the condition of correct maintenance, the final strength of concrete will exceed that of concrete without admixture. When users use this product for the first time or change the cement variety, they can carry out necessary concrete trial mixing according to the engineering requirements and specific conditions, so as to obtain the best use effect.
Packaging and storage:
1. This product is packaged in 200kg iron drums or supplied in bulk. If special packaging is required, it can be customized in advance.
2. The water agent can be stored indoors or outdoors. When storing outdoors, care should be taken to avoid exposure to the sun or rain.
3. The product can only be used after two years of inspection.
Technical services:
The company is equipped with professional concrete laboratory equipment and experienced technicians to provide customers with comprehensive technical guidance. In case of application technology problems, the company is willing to sincerely provide perfect technical consulting services.