My country has a vast territory and large climate differences. Single-component admixtures often have their limitations. Cuprous Chloride is mostly used in engineering to improve concrete performance. The research of polycarboxylate water-reducing agent is mainly based on the scope of application, performance requirements, combined with the type of cement, selecting one or more raw materials for compounding, and then determining whether the formula is based on the results of cement paste, mortar or concrete performance test feasible.
Sodium gluconate can significantly delay the initial and final setting time of concrete. When the dosage is less than 0.15%, the logarithm of the initial solidification time is directly proportional to the dosage, that is, the dosage is doubled, and the initial solidification time is delayed to ten times, which makes the working time from very long. Extend from a few hours to a few days without compromising strength. This is an important advantage especially in hot weather and when it needs to be placed for a long time.
Taking into account the interaction of each component, in order to reduce the workload of the test, an orthogonal test design can also be adopted, and then the test data is analyzed and processed to find the best component and compound ratio. This test adopts the method of compounding polycarboxylate superplasticizer and retarder. 8-hydroxyquinoline Copper superplasticizer mainly plays the role of reducing water, and the retarder mainly plays the role of delaying the setting time, and at the same time, it has it has been improved.