What is the role and mechanism of water
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On construction sites or in home improvement, we see concrete being used a lot. It is important to add a water-reducing additive to concrete. Why is it necessary to add water-reducing agents to concrete and what are the functions and mechanisms of this additive. The answers will be revealed next.
What is water?
A chemical additive that reduces water, has a main component called a surfactant. It can significantly reduce the amount water required to make concrete. Using this addition can reduce the cement needed, lower the cost, and improve quality.
What's the purpose of the water-reducing agent?
They include, in particular, the following elements
1. This water-reducing ingredient contains a surfactant which can be used to spread cement particles. It will reduce the need for water.
2. Agents that reduce water can have a dispersing effect on the concrete, preventing it from drying out and settling.
3. These agents are known to reduce water-water absorption, which improves the permeability of concrete.
The evolution of water-reducing agent:
The first generation water-reducing agents
Ordinary water-reducing agent (water-reduction rate)
Also called plasticizer (also known as lignosulfonate), it is a main component of the system of lignosulfonates (calcium, sodium, and magnesium lignosulfonates, for example). ).
Second generation water-reducing agent
High-efficiency water-reducing agents (water-reduction rate
The main representative of naphthalene systems, melamine systems, amino-sulfonate systems, and the aliphatic system.
Third generation water reducing agents
Water-reducing agent with high performance (water-reduction rate).
This is the most common polycarboxylic acids (water-reducing agents), which can be divided in three categories: Early-strength, Standard, and Slow-setting.
and , the water-reducing agents , play an important part in concrete. The agent will not only improve the durability and strength, but it will also reduce the concrete needed to achieve that. It is for this reason that water-reducing chemicals are essential in the construction industry.