Concrete segregation not only affects the construction, but also affects the homogeneity of the concrete. If the concrete mixer segregates during use, it will become very troublesome.
There are many reasons for concrete segregation, and the common ones are as follows
1. Improper water-to-material ratio: adding too much water, using too little cement, etc. can cause segregation.
2. The quality of the sand is not good: there are many stones in the sand and too high water content will cause segregation.
3. Poor gravel gradation: Increased gravel particle size, poor gradation, and single gradation can easily cause segregation of concrete.
4. Excessive addition of admixtures: Excessive admixtures such as retarders, or poor adaptability of admixtures to cement can also cause concrete segregation.
How to remedy concrete segregation?
First of all, we need to control the slump of the concrete coming out of the machine, because only by reducing the slump of the concrete coming out of the machine can the concrete mixing time be effectively increased. Under normal circumstances, the separated concrete can be mixed for the next time. However, if the segregation of concrete is very serious, it will have to be scrapped.
In order to avoid losses, here is an emergency remedy for you!
Concrete anti-segregation agent
Low dosage, good effect, easy to dissolve, fast and convenient, and affordable.
1. Form: powdery.
2. Function: Adjust the defects of hardened pulp and sticky bottom and water bleeding; reduce slump.
3. Compatibility: suitable for all kinds of admixtures.
4. Dosage: 1 gram of powder can eliminate the effect of 1kg of water on slump; 5-10 grams of powder can eliminate the effect of 1kg of water-reducing agent on slump.
5. Usage: Pour into concrete and stir for about 2 minutes.
6. Weight: 500g
7. Principle: Constrain the dispersion of water on the adhesive material and return the concrete to reasonable workability.
Amount of concrete anti-segregation agent
After concrete segregates, calculate the total excess water consumption based on the concrete volume and the excess water consumption per unit, and determine the regulator based on “1 gram of powder adjusts 1 kilogram of water” Dosage.
How to use concrete anti-segregation agent
1) Turn the tank over and push the concrete to the end.
2). Rotate the tank forward slowly, and at the same time, spread the appropriate amount of this product onto the concrete surface as dispersedly as possible.
3) Then the tank is rotated and stirred rapidly. The time depends on the amount of concrete in the tank, about 2 to 4 minutes. </p
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