Recommendation of new concrete admixture Retarder Lithium Citrate

Recommendation of new concrete admixture—Retarder Lithium Citrate

Keywords
Lithium Citrate, Concrete Admixtures, retarder, superplasticizer

Lithium citrate tribasic
Alias: Citric acid trilithium salt; trilithium citrate; 1,2,3-propanetricarboxylic acid, 2-hydroxy-, lithium salt (1:3)
CAS number: 919-16-4 (tetrahydrate is 6080-58-6)
Molecular formula: Li3C6H5O7
Linear molecular formula: HOC(COOLi)(CH2COOLi)2
Molecular weight: 209.92

Lithium citrate refers to the compound produced by the reaction of lithium ions and citrate.  It is a white powder with the chemical formula Li3C6H5O7. Lithium citrate is also widely used in building materials.

Lithium citrate can be used in concrete as a high-efficiency retardant water-reducing agent; a retarder can delay the hydration reaction of cement, thereby prolonging the setting time of concrete, allowing fresh concrete to maintain plasticity for a longer period of time, facilitating pouring, and improving  It is an admixture that improves construction efficiency and will not have any adverse effects on the later performance of concrete.

At the same time, lithium citrate can also play the following roles in concrete:
1. Improve the performance of concrete
Lithium citrate can improve the penetration resistance and durability of concrete. Adding lithium citrate to concrete can promote the solidification and precipitation of cement particles, thereby improving the compactness and strength of concrete.  At the same time, lithium citrate can also reduce the formation of concrete pores, reduce the depth of carbonization, and extend the life of concrete.
2. Promote cement solidification
Lithium citrate enhances the hardening properties of cement. Adding lithium citrate solution to cement can promote the crystallization, solidification and solidification of cement particles, thereby increasing the early strength and later strength of cement, and improving the quality and hardness of cement.
3. Improve the water resistance of mortar
Lithium citrate can enhance the water resistance and bonding strength of mortar. Adding lithium citrate solution to mortar can promote the solidification and bonding of materials, increase the hardness and relative density of mortar, thereby improving the water resistance and bonding strength of mortar.