Beijing Dongke United Technologies Co.,Ltd.

Types of water reducing agent

Depending on the water reducing / increasing capacity of the water-reducing agent, it can be divided into common water-reducing agents (water-reducing rate for plasticizers, lignosulfonate is 8% or more) and high-efficiency water-reducing. Agent (high performance water reducing agent). Plasticizer, naphthalene-based, melamine-based, sulfate-based, aliphatic-based, etc. with water-reducing agents, water-reducing agents of 14% or more, and high-performance water-reducing agents (water-reducing rate of 25% or more, polycarboxylic acids) Water reducing agent. It is divided into strong type, standard type, and delay type.

Water reducing agents are concrete mixes that can reduce water consumption for mixing without changing the concrete slump. Most of them are anionic surfactants like lignosulfonate, naphthalenesulfone formaldehyde polymer. By adding concrete mix, it can disperse cement particles, which can improve its functionality, reduce unit water consumption, and improve the fluidity of concrete mix. Or reduce unit cement consumption and save cement.

Appearance morphology is divided into liquid and powder. The solids content of water is usually 20%, 40% (also called mother liqueur), 60%, and the solids content of powder is usually 98%.

Depending on the water reducing / increasing capacity of the water-reducing agent, it can be divided into common water-reducing agents (water-reducing rate for plasticizers, lignosulfonate is 8% or more) and high-efficiency water-reducing. Agent (high performance water reducing agent). Plasticizer, naphthalene-based, melamine-based, sulfate-based, aliphatic-based, etc. with water-reducing agents, water-reducing agents of 14% or more, and high-performance water-reducing agents (water-reducing rate of 25% or more, polycarboxylic acids) Water reducing agent. It is divided into strong type, standard type, and delay type.

The composition is categorized as follows according to the material. (1) lignosulfonate. (2) polycyclic aromatic salts; (3) water-soluble resin sulfonate.

Naphthalene high performance water reducing agent, aliphatic high performance water reducing agent, amino high performance water reducing agent, polycarboxylic acid high performance water reducing agent, etc.

Depending on the chemical composition, generally lignosulfonate high-performance water-reducing agent, naphthalene high-performance water-reducing agent, melamine high-performance water-reducing agent, sulfamic acid high-performance water-reducing agent, fatty acid high-performance water-reducing agent , Liquid. Agents, polycarboxylic acid high performance It can be divided into water reducing agents.

High performance water reducing agent for polycarboxylates is liquid. You must use a barrel to transport it to storage.

As the water-reducing agent is a chemical, store it in a cool, dry place and avoid direct sunlight. Otherwise, beware of antifreeze in winter as it can cause instability and deterioration of the water-reducing agent. Please keep it in a warm place.

Generally, the sealing time of water reducing agent is one year. If shelf life is exceeded when you open and use it, you can actually continue to use it.

The high-performance water-reducing agents of the polycarboxylic acid chain are the world’s most advanced technology, the highest technological materials, the highest use possibilities, and the highest-performing water-reducing agents (water-reducing agents) for concrete with the highest overall performance. Polycarboxylic acid is a composite product of high performance water reducing agents carboxylic acid grafted multi-element copolymers and other effective additives. Performance comparisons with similar products at home and abroad show that polycarboxyl acid-based high-performance water-reducing agents have reached internationally advanced levels in terms of technical performance indicators and cost performance.

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