| 摘要 |
PROBLEM TO BE SOLVED: To provide a cement mortar for building which is a cement-based mortar and has good workability in manufacturing, properties practically required as mortar for building even after executing building work and a greatly improved trowelability for buildings by solving problems such that there is a limit to improve the trowelability by an admixing material/agent, since there is a possibility of improving the trowelability of mortar by using an admixing material/agent but much increase of their use to improve the trowelability may hinder the efficiency of manufacturing work and the development of properties required as mortar for building besides the trowelability. SOLUTION: The cement mortar for building comprises fine aggregate composed of 100 pts.vol. of a porous composite comprising ethylene vinylacetate copolymer and calcium carbonate, 55-130 pts.vol. of a polymer resin particle with bulk specific gravity of 0.05 or less and 155-260 pts.vol. of an inorganic particle with bulk specific gravity of 0.27 or less. COPYRIGHT: (C)2009,JPO&INPIT |
