- Quantitative increase in concrete structures by rapid economic growth - Frequent repair works due to improper materials and poor construction - Annual maintenance expense for road facilities in Seoul: ￦1.3 billion (as of 1997) - Serious neutralization of concrete structures resulting from auto exhaust gas (CO2) and moisture - Serious corrosion of harbor concrete structures caused by seawater: Damage on the concrete structures caused by snow removing agent in splash zone and frost in winter     - Physical and technical properties of concretes are different so durability is deteriorated. - Improper neutralization of concrete structures, and application of seawater damage preventive agent and technique - Poor repair works for concrete sections that are being damaged       Resiscon anticorrosive is made from: low viscosity high molecular resin; ceramics that have excellent watertightness, abrasion resistance, chemical resistance, and seawater resistance; micro power like silicon carbide (Sic), anti-corrosive alumina (AI203), and metal (zinc titanium); and over 20 other materials. It is waterproof and anticorrosive. In addition, in consideration of the features of a facility, elasticity of the material can be adjusted in the process of manufacture.