Cost control: Cellulose ether has a high price (about 20-50 yuan/kg), and excessive addition will increase costs. Industry research shows that cellulose ether accounts for over 40% of the cost of dry mixed mortar materials, and a balance between performance and economy is needed. Upper limit of dosage: Studies have shown that when the amount of cellulose added exceeds 0.5%, the improvement in water retention is limited and may reduce the strength of the mortar. Therefore, excessive addition is not recommended.

Cement based materials (such as mortar and concrete) are prone to problems such as insufficient strength and cracking due to rapid loss of moisture during the hydration process.