| 摘要 |
PURPOSE: A cement mortar composition is provided to obtain the superior thermal insulating characteristics of the composition based on an aramid-contained cement binder. CONSTITUTION: A cement mortar composition includes 7-25 weight% of a cement binder, 35-55 weight% of fine aggregate, 25-40 weight% of coarse aggregate, 1-10 weight% of water, 0.05-3 weight% of a water reducing agent, and 3-8 weight% of calcium sulfoaluminate. The water reducing agent is one selected from lignin sulfonate, alkylarylsulfonic acid, polyoxyethylene, alkylaryl ether, oxy carbonic acid, melamine sulfonic acid, poly carbonic acid, naphthalene sulfonate, and amino sulfonic acid-based group. The cement binder includes alumina cement, aluminum oxide, light weight aggregate, a polyamide fiber reinforcing material, calcium caronate, silica fume, zinc, a moisturizing agent, and acryl-based polymer. The polyamide fiber reinforcing material is aramid. The cement mortar composition forms a concrete structure, and an eco-friendly surface protecting agent is applied to the surface of the concrete structure(S40 to S60).
|
