What is the difference between water reducing agent and pumping agent? As a new type of water reducing agent, polycarboxylate water reducing agent has the characteristics of low dosage and high water reducing rate, and with the functional polycarboxylic acid water reducing agent The development and application of polycarboxylate water-reducing agents has made the application of polycarboxylate water-reducing agents more widespread. Pumping concrete requires the concrete to have greater fluidity and maintain this performance for a longer period of time, that is, small slump loss and good viscosity. , concrete does not segregate or bleed. To achieve this, it is not enough to adjust the concrete ratio alone. You must rely on concrete admixtures, especially concrete pumping agents. Water reducing agents and pumping agents should be very common, but do you know about the two? Are there any similarities and differences between the two? Let’s first analyze the differences between water reducing agents and pumping agents. Come on.
The different working principles of water-reducing agents and pumping agents
1. The working principle of water-reducing agents in concrete: It is a method that maintains the slump of concrete unchanged. , a concrete admixture that can reduce mixing water consumption. Most of them are anionic surfactants, including lignin sulfonate, naphthalene sulfonate formaldehyde polymer, etc. After being added to the concrete mixture, it has a dispersing effect on the cement particles, which can improve its workability, reduce the unit water consumption, and improve the fluidity of the concrete mixture; or reduce the unit cement consumption and save cement.
2. The working principle of pumping agent in concrete: It is also called concrete pumping agent. Admixtures that can improve the pumping performance of concrete are called concrete pumping agents. Most of them are composite products, which mainly include fluidizing components, air-entraining components, retarding components, and other components. They are composed of high-efficiency water-reducing agents and retarder. The pumping agent with high-efficiency water-reducing admixture as the main component is mainly suitable for rich concrete; the pumping agent with air-entraining water-reducing agent as the main component is suitable for medium concrete with the addition of thickening agent, water retaining agent and air-entraining agent. Pumping agent is suitable for flat concrete, etc. It is an admixture that improves the pumping performance of concrete and has excellent water-reducing and enhancing effects and retarding and plastic-retaining properties. The commonly used dosage of this product is 1.5-2.0% of the cement dosage. It can be mixed into concrete together with mixing water. If the post-infiltration method is used, the effect will be more significant, and it is compatible with other admixtures of the same type. However, for cement that uses anhydrite and fluorogypsum as setting agents, concrete adaptability tests must be conducted and can only be used when they are adapted.
1. Water-reducing agent mainly plays the role of reducing water, increasing concrete fluidity and strengthening, and is widely used in the preparation of various concretes;
Pumping agent is a composite additive, among which It already contains additives such as water reducing agent and retarder, and is mainly used for the preparation of pumped concrete.
2. Water-reducing admixture is an admixture that reduces water consumption and improves the strength of concrete while maintaining the same construction performance of the concrete mixture;
The main raw material of the pumping agent is water-reducing agent. Water agent, plus a small amount of other admixtures.
3. Water-reducing admixture is an admixture that reduces water consumption and improves the strength of commercial concrete while maintaining the same workability of the commercial concrete mixture;
The main raw material for pumping It is a water-reducing agent, and a small amount of plasticizing and slump-preserving ingredients are added to facilitate the pumping construction of commercial concrete.
Everyone should use water-reducing agents and pumping agents reasonably according to different occasions, so as to achieve the expected results. </p
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