The application of sodium nitrite in construction engineering

The application of sodium nitrite in construction engineering

Sodium nitrite is mainly used as antifreeze, rust inhibitor, early strength agent, strengthening agent, etc. in construction projects. Sodium nitrite for industrial construction is basically an admixture product necessary for building construction, but why? Why must use sodium nitrite in current building construction? Many people have the above questions, Hailan Chemical is here to introduce you.

1. In winter construction, low temperature is easy to cause construction problems such as increased water seepage, building cracks and reduced strength. Sodium nitrite, as an antifreeze, can minimize the effects of freezing damage and ensure building quality and performance.

2. Rebars in reinforced concrete buildings are prone to rust problems, which can damage the strength and toughness of the building. Sodium nitrite can effectively control and reduce the corrosion of steel bars, extend the service life of steel bars, and improve the ability of steel bars to resist corrosion in a corrosive environment.

3. The setting time of concrete building construction is regulated by standard. The use of sodium gluconate retarder will prolong the initial setting time of concrete. If the time is too long, it will damage the initial detection of the building. The solidification time of building construction conforms to national standards.

4. Additives such as retarders have a weakening effect on the initial strength of concrete. The stronger the plasticity, the weaker the initial strength. Sodium nitrite can improve the degree of hardening of cement and the strength of cement when it is frozen and early set

5. Sodium nitrite has the effect of reconciling the properties of different specialty cements. Poor corrosion resistance improves rust resistance, weak strength enhances cement strength, slow hardening speed increases hardening degree, poor frost resistance enhances concrete antifreeze effect, etc.

Sodium nitrite is very widely used in concrete buildings. Building construction in different regions, different environments and different temperatures requires sodium nitrite to be adjusted for different properties. It is the guarantee of high-performance concrete construction and requires quality in construction. For a higher future, the application prospects are also very broad!