There is boner process of stone manufacturing to become quality down of stone to consolidated micro crack appearance of stone surface and biotite by fire that is to be route process in stone surface by flame of LPG. And then, it is develop that stone surface process equipment by automation for the work method of boner process can be substitute work method by shotball blasting. To developement of equipment, There is to be down noise and dust. Acording to remove calamity growth hazardous substance in the work environment, there is to solve workplace avoidance factor. We have taken Taguchi's parameter design approch, specifically orthogonal array, and determined the optimal levels of stone surface through analysis of the experimental results using SIN ratio.

There is boner process of stone manufacturing to become quality down of stone to consolidated micro crack appearance of stone surface and biotite by fire that is to be route process in stone surface by flame of LPG. And then, it is develop that stone surf

There is boner process of stone manufacturing to become quality down of stone to consolidated micro crack appearance of stone surface and biotite by fire that is to be route process in stone surface by flame of LPG. And then, it is develop that stone surface process equipment by automation for the work method of boner process can be substitute work method by water jet to development of equipment. There is to be down noise and dust. According to remove calamity growth hazardous substance in the work environment, there is to solve workplace avoidance factor.

Spite of the several advantages of durability and economic characteristics, such as civil engineering and construction materials, which is widely used as a mortar and concrete, and the tensile strength of fragility and brittleness due to local damage caused. This mechanical shortcoming ensure ductility and brittle complement the various fibers used in concrete and mortar has been developed in order to improve the energy absorption capacity, and increase the use of multiple structures in the form of.Now widely used in the polypropylene fiber polypropylene and affordable, excellent chemical stability and durability, but mainly use the nature of water and mix well so the fluorinated surface hydrophilic polypropylene fibers that can be granted through the processing unit,to overcome this.