Development of repair materials and methods for deteriorated concrete using inorganic materials.
Ceramic paint that restores the strength of deteriorated concrete.
**Surface Impregnation Material** Surface impregnation materials are penetrating protective agents used to impart specific properties to the surface of concrete, such as preventing the intrusion of deterioration factors. They aim to modify the surface layer. Although surface impregnation materials are relatively inexpensive and easy to apply, there is a challenge in that there is no established construction method, and good modification effects are not consistently achieved on-site. This repair material successfully increases hardness by generating aluminosilicate minerals through the crosslinking of silica with aluminum and applying the developed "Sanken Method." **Sanken Method** Deteriorated concrete has enlarged capillary voids and tiny voids within the hydration product framework, making the surface brittle and more susceptible to water intrusion. The modification concept of the Sanken Method is to restore hardness by reinforcing the skeletal structure with impregnated silica and to enhance waterproofing by sealing capillary voids with silicates, thereby achieving effective results.
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■ Materials Modified material: Colloidal silica (CS) aqueous solution Modified water: Calcium hydroxide aqueous solution ■ Coating Process 1. Apply modified material 2. Water curing ⇒ Apply modified water after 6 hours of drying 3. Water curing ⇒ Apply modified water after 6 hours of drying 4. Water curing ⇒ Apply modified water after 6 hours of drying 5. Water curing 6. Completion
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Our company established its office in Toyohashi City, Aichi Prefecture, in May 1963, specializing in waterproofing, painting (at that time, plastering), and flooring work. We have inherited the spirit of our founding management philosophy, which is to "contribute to society through the creation of new value, aiming for diversification and internationalization as a group of experts. By leveraging our refined skills and cultivated knowledge, or 'wisdom,' we aim to create broad demand, respond to customer needs, and consolidate our employees' collective strengths to expand into a highly profitable enterprise." We have launched new businesses that align with current trends and our philosophy. Since 2014, we have established a development room within Sanshin Building Materials Co., Ltd., promoting the use of drones as a next-generation inspection and survey system. Additionally, we are advancing joint research and development with venture companies and universities on ultrasonic inspection devices that do not require skilled workers for sound inspection, as well as the exterior wall inspection lifting robot "NOBORIN." We have participated in various advanced technology demonstrations organized by the Ministry of Land, Infrastructure, Transport and Tourism, and our activities have been recognized, earning us the "Regional Future Leading Company" certification from the Minister of Economy, Trade and Industry. We will continue to strive to be a company that contributes to society through the creation of new value, in line with our philosophy.