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  • The powder content is 0.3-0.7% of the total glue, and the liquid content is 1.0-1.2% of the total glue volume. Concrete water-reducing admixture must be added with the mixing water into the mixer and stirred until the specified time. The water-reducing agent in concrete has good water-reducing performance at low content, especially in high-grade concrete, and its maximum water-reducing rate can reach 40%. Water-reducing admixture for concrete is alkali-free and chlorine-free and has no corrosion Water Reducing Admixtures are mainly used in areas that experience hot and humid weather for concrete pumping, tremie, and placing. Careful concrete placement becomes required since the "initial" time to set will typically occur 1 hour earlier. It has also been shown that WRA use increases the concrete's initial compressive strength (up to 28 hours) by 10% when compared to a control mixture. Another benefit relating to the use of WRA is that the higher density of the concrete is achieved, making Water-reducing agents can reduce the time the concrete takes to harden and the cement amount used for each concrete unit, thus reducing costs and saving cement. According to the capacity of water reduction, the water-reducing agents are available in different categories, including standard water-reducing agents, high-performance PCE superplasticizers, SNF superplasticizers, and other water-reducing agents. Many essential characteristics relating to the concrete are mainly influenced by a ratio ( The water-reducing agent is an additive that can keep the working fluidity of gypsum slurry unchanged and significantly reduce the added amount. Adding water-reducing agents in the production of gypsum board, even in the case of a lower water-to-slurry ratio, can still improve the proper fluidity of gypsum slurry. Therefore, reducing the amount of process-forming water added. During gypsum board drying, the amount of evaporated water is correspondingly reduced, reducing the energy consumption of What is water reducing agent?Firstly, the water-reducing agent can reduce the unit amount of Water used in concrete mixing without affecting the workability of the concrete to reduce the water-cement ratio and effectively improve the strength of concrete; Secondly, the water-reducing agent does not reduce the concrete mix performance other. At first sight, lithium having a high value of ionization energy amongst alkali metals, acts as the strongest reducing agent in solution. Reducing agents, ox The limitations are increased drying shrinkage due to higher water content, cement concrete, and paste-to-aggregate ratio. Higher air contents may be required to provide adequate resistance to freezing, thawing, and salt scaling, and higher air contents reduce strength. Too much water added to the mix means that excess water is retained inside the concrete after finishing the curing process. This will often result in the formation of small cracks as the water eventually evaporates over time, red What is Water reducing agent?Water reducers developed over the years can be categorized as lignosulfonates, hydroxycarboxylic acids, hydroxylated polymers, salts of melamine formaldehyde sulfonates, or naphthalene formaldehyde sulfonic acids. The most recent technology, using polycarboxylates, was introduced in the 1990s. Water Reducing Admixtures (WRAs), sometimes called plasticizers, are designed to free trapped Water that is present in concrete mixtures and used in various applications to ens Chemical name for the aromatic amino sulfonate polymer, the production of sodium p-aminobenzene sulfonate, phenol as raw materials through addition, polycondensation reaction eventually generated with a certain degree of polymerization polymer, its water reduction rate can reach 30%, high cost, easy to bleeding, often combined with naphthalene series of highly effective water reducing agent used, can solve the problem of compatibility between naphthalene series of highly effective water reducing What is a water-reducing agent?Water reducing agent is a concrete admixture used in building materials that can effectively reduce the amount of water used in concrete mixing and maintain its collapse is not affected. This admixture is made of polymers such as lignosulfonate, which has a specific dispersion effect on cement particles, can improve its working performance and fluidity, and can also play a role in saving materials. Water reducing agent is mainly used in C15 to C60 grade above the c What is a water reducing agent?Water reducing agent is a concrete admixture that can reduce the amount of water used for mixing while maintaining a constant slump of concrete. Most are anionic surfactants, such as lignin sulfonates, naphthalene sulfonate formaldehyde polymers, etc. After adding the concrete mixture, it has a dispersing effect on cement particles, can improve its workability, reduce unit water consumption, and improve the fluidity of concrete mix; Or reduce the amount of cement p

Main classification of water reducing agents

The appearance is divided into Water and powder. The solid content of Water is generally 20%, 40% (also known as mother liquor), and 60%, while the factual content of powder is generally 98%. According to the Water reducing and enhancing capabilities of Water reducing agents, they are divided into ordinary Water reducing agents (also known as plasticizers, with a water-reducing rate of not less than 8%, represented by lignosulfonate salts), high-efficiency Water reducing agents (also known as su

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What is a water reducing agent

Water reducing agent is a surface active agent, and its molecular formula consists of two parts: hydrophilic and hydrophobic groups. When cement is mixed with Water, there is no Water saving technology. Due to the role of molecular cohesion between cement particles, the glue will form a coagulation structure, as shown in Figure a below. A part of the river water will be wrapped in the flocculation structure of the cement particles, thereby reducing the fluidity of the concrete mixture. After fal

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Action mechanism of water reducing agent

Dispersion effect: After mixing cement with Water, due to the hydration effect of cement particles, a double electric layer structure is formed on the surface of the cement particles, forming a solvated water film. Moreover, the surface of the cement particles has anisotropic charges, causing the association between the cement particles, creating a flocculation structure for the cement slurry so that 10% to 30% of the mixing Water is wrapped in the cement particles and cannot participate in free

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Effect of Concrete Components on the Performance of High-efficient Water Reducing Agent

Concrete is a mixture of a graded aggregate, sand, water, and cement. It is necessary to study the influence of concrete components on the effect of the high-efficient superplasticizer in order to give full play to their due effect.

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Other Kinds of Water-Reducing Agents

Other five kinds of water-reducing agents: sulfamate high-efficient water reducer, fatty acids high-efficient water reducer, HSB aliphatic superplasticizer, powder polycarboxylate, casein will be introduced.

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What is Melamine Series Water Reducing Agent?

Melamine water reducing agent is the product of the reaction that melamine is first sulfonated by sulfuric acid and then condensed with formaldehyde, so the chemical name is sulfonated melamine-formaldehyde resin, which belongs to the anionic surfact

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Production and Applications of Naphthalene Sulfonate Water Reducing Agent

Naphthalene Sulfonate Water Reducing Agent is the product of naphthalene sulfonated by sulfuric acid and then condensed with formaldehyde, which belongs to an anionic surfactant.

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What is Concrete Superplasticizer?

Concrete superplasticizer is high efficienct water reducing agent. Its difference from ordinary water reducing agent lies in the high-water reduction rate. The water reduction rate of ordinary water reducing agent is generally 5%-10%, and the water r

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