Post Date:14,Mar,2023

Concrete admixtures are widely used in buildings, so the quality of concrete admixtures seriously affects the quality of the project. The manufacturer of concrete water reducing agent introduces the poor quality of concrete admixtures. Once there are problems, we will change them.

First, abnormal setting occurs during mixing of fresh concrete, such as rapid setting, false setting and other phenomena, resulting in rapid loss of slump.

Second, the bleeding, segregation and stratification of concrete are serious, and the hardening strength is obviously reduced.

Third, the slump of fresh concrete cannot be improved, and it seems that the water reducing effect of concrete additives is poor.

Fourth, the concrete shrinkage increases, impermeability and durability decrease, and the retarding effect in large area concrete is not obvious, and temperature difference cracks appear.

Concrete admixtures can bring great convenience to construction, and have been widely used in the construction industry. We have already introduced the selection of concrete admixtures before. Here again we emphasize the choice of additives.

1. The type of admixture shall be selected according to the engineering design and construction requirements, and then determined according to the test and relevant technical and economic comparison.

2. It is strictly prohibited to use concrete admixtures that are harmful to human body and pollute the environment.

3. For all cement of concrete admixtures, we recommend to use Portland cement, ordinary Portland cement, slag Portland cement, pozzolanic Portland cement, fly ash Portland cement and composite Portland cement. Warm tips: we should better check the adaptability of admixtures and cement before use.

4. The materials used for the use of concrete admixtures need to serve the current standards. When trial mixing concrete admixture, we should use raw materials for the project, based on the actual project conditions.

5. When using different kinds of admixtures, special attention should be paid to their compatibility and the impact of concrete performance. The selection of concrete admixture is emphasized again, which shows its importance and hopes to be helpful to everyone.