The use of carboxymethyl cellulose in construction is safe, but it is necessary to follow the correct usage methods and relevant safety measures.

1、 The role of carboxymethyl cellulose

Carboxymethyl cellulose is a water-soluble polymer widely used in the field of construction. It can improve the plasticity and crack resistance of building materials such as cement mortar and concrete, while also improving the workability and durability of the materials. In addition, it can also serve as a thickener and rheology agent for wall coatings, improving the emulsion stability and adhesion performance of the coating.

2、 Safety of carboxymethyl cellulose

Carboxymethyl cellulose, as a building chemical additive, has undergone strict testing and approval, and its use is safe and legal. According to relevant international and domestic standards and regulations, the addition amount and usage method of carboxymethyl cellulose should comply with the corresponding specifications to ensure its safety.

When using carboxymethyl cellulose, the following aspects should be noted:

1. Follow the specifications: When using carboxymethyl cellulose, it should be strictly operated according to the requirements of the specifications to prevent misuse or excessive use.

2. Avoid contact: Carboxymethyl cellulose has a certain degree of irritation and sensitivity, and should be avoided from skin contact and inhalation when used. Personal protective equipment should be worn if necessary.

3. Storage precautions: During storage and transportation, avoid mixing with other substances and contact with water. Store in a cool and dry place.

3、 Harmful issues of carboxymethyl cellulose

Although carboxymethyl cellulose has undergone long-term testing and application as a building chemical additive, there are still some harmful issues:

1. Potential risks to human health: Although there is currently no clear evidence to suggest that carboxymethyl cellulose is harmful to human health, it has certain irritations and sensitivities, which may cause irritation and adverse reactions to the skin, eyes, respiratory tract, and other areas.

2. Environmental impact: Carboxymethyl cellulose, as a chemical additive, has certain biodegradability and environmental toxicity, and its emissions may have a certain impact on the environment.

4、 Conclusion

As an additive widely used in the field of construction, the safety and harmfulness of carboxymethyl cellulose still need to be rigorously verified through scientific research and practice. As practitioners in the construction industry, one should follow regulations, use carboxymethyl cellulose correctly, strengthen safety control and environmental protection measures, and ensure the realization of building quality and work safety.