How to use Polycarboxylate powder?
How to use Polycarboxylate powder?
Keywords
Polycarboxylate powder, instruction manual, dissolution method, usage method, China Polycarboxylate ether powder supplier
1. How to use Polycarboxylate powder
Polycarboxylate ether superplasticizer powder is a commonly used concrete admixture. It can significantly reduce the water-cement ratio of concrete and improve the fluidity and pumpability of concrete. The use of polycarboxylate superplasticizer powder can help the construction of concrete products go more smoothly and improve the performance of concrete.
The method of using polycarboxylate superplasticizer powder is as follows:
1. Powder ratio: Determine the dosage of polycarboxylate water-reducing agent powder according to the design mix ratio of concrete. Normally, the dosage of polycarboxylate superplasticizer powder is 0.1%-0.3% of the total weight of concrete. It should be noted that using too much water-reducing agent will cause the strength of concrete to decrease, so the dosage should be adjusted appropriately according to the specific situation.
2. Addition of powder: Sprinkle the polycarboxylate superplasticizer powder evenly on the surface of the concrete. Be careful to avoid putting the powder directly into the water to avoid clumps forming. While spreading the powder, you can use a mixer or manual mixing tool to stir thoroughly so that the powder is evenly dispersed in the concrete.
3. Stirring time: After adding the polycarboxylate superplasticizer powder, sufficient stirring is required to fully mix it with the concrete. The mixing time is generally 3-5 minutes, and the specific time can be adjusted according to the concrete construction conditions.
4. Concrete construction: After the concrete mixing is completed, construction can begin. Due to the effect of polycarboxylate superplasticizer powder, the fluidity and pumpability of concrete will be significantly improved, making pouring and molding easier.
It should be noted that polycarboxylate superplasticizer powder should be stored in a dry and ventilated place, away from moisture and direct sunlight. In addition, during use, you must strictly follow the instructions for use and avoid excessive use or mixing with other admixtures to avoid affecting the performance and construction effect of the concrete.
In short, the use of polycarboxylate superplasticizer powder is simple, but attention should be paid to reasonable proportions and sufficient mixing during use to ensure the performance and construction quality of the concrete.
2. Dissolution method of Polycarboxylate powder
1. Prepare tools and materials
First of all, you need to prepare the tools and materials for using Polycarboxylate powder, including weighers, mixing barrels, clean water, etc.
2. Weigh the polycarboxylic acid powder
Weigh an appropriate amount of polycarboxylic acid powder according to usage needs. Under normal circumstances, it is recommended to weigh according to the proportions in the instructions.
3. Add water
Pour the weighed polycarboxylic acid powder into the mixing bucket and slowly add an appropriate amount of water. During the mixing process, it is recommended to add water slowly to avoid adding too much water at one time.
4. Stir to dissolve
After adding water, use a stirrer to stir and dissolve the mixture, either mechanically or manually. It usually takes 3-5 minutes to stir until the consistency is right.
