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What happens when you add too much polycarboxylate cement

There are many kinds of water reducer, various types of water reducer components are not the same as the effect is not the same, the consequences of excessive will not be the same. What is the consequence of adding too much water reducing agent?

If it is a simple without retarding, air intake and other components of the superplasticizer, that is to say, only the function of the superplasticizer, excessive will only cause the concrete slump too large, or segregation, bleeding, hardening, etc..

But many types of water reducing agent with retarded air-entraining, such as mixing station, site using most of water reducing agent with other functions such as retarding, air-entraining, he design consider according to the normal dosage, retarded for a few hours, several air content, the dosage of normal, or more than a bit not retarded, air-entraining overweight, but if too much more, (general admixture plant will have a recommended dosage range), will be excessive slow coagulation, gas content is too high, cause concrete condensation is too slow, high gas content leads to concrete strength reduction and so on.

Nowadays, the development and change of polycarboxylate cement should conform to the trend of industrialization and innovate its mechanism. There is still much room for improvement in the synthesis technology, methods and properties. With the rapid development of industrial industrialization, there is an urgent need for a polycarboxylic acid water reducer with higher cost performance, better performance and wider adaptability. More scientists are needed to continue their efforts and explorations.

Going forward, the specific requirements of each concrete technology will require the development of optimal admixtures, and each series will have many different chemical compositions. With the progress of research on the synthesis, characterization and the relationship between chemical structure and performance of polymer water reducing agent, polymer water reducing agent will develop towards high performance, multifunctional, ecological and international standardization. It can obtain better water reduction rate and smaller slump loss, especially when preparing concrete with high fluidity and low water-cement ratio. The main varieties of water reducing agent series.

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