Registered in the Ministry of Land, Infrastructure, Transport and Tourism's NETIS "New Technology Information Provision System"! Achieving strong interfacial adhesion with fiber reinforcement!
The Joinbond method involves applying the fiber-reinforced polymer cement adhesive "Joinbond M5000" after high-pressure water treatment. By using this method for additional concrete applications, it significantly enhances the bonding strength at the joint interface, integrates old and new concrete layers, and improves water tightness. It is ideal for applications such as increasing the height or reinforcing existing structures like dams, flood barriers, and waterways, as well as for seismic reinforcement of various public facilities, and for horizontal and vertical joint surfaces in new and old concrete slabs, beams, and columns. 【Features】 ○ Excellent workability, significantly reducing the time required for joint treatment compared to conventional methods (chipping). ○ Spraying or troweling onto the surface of old concrete and pouring new concrete to integrate the old and new concrete layers, enhancing water tightness. ○ After applying to the old concrete surface, it allows for a time frame of 1 day to a maximum of 14 days (at 20°C) before pouring new concrete. ○ Superior adhesion to rebar. ○ NETIS registration number: KK-130043-A For more details, please contact us or download the catalog.
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basic information
【Characteristics】 ○ Construction method: Application of polymer cement material ○ Usable time of material: Approximately 40 minutes ○ Effective period for jointing: Within 1 to 14 days after application ○ Shear strength ratio (28 days): 108 ○ Flexural adhesive strength ratio (28 days): 77 ○ Adhesion to iron (28 days): 1.5 N/mm² or more 【Performance】 ○ Flexural strength: 8.6 N/mm² ○ Compressive strength: 50.1 N/mm² ○ Adhesion to concrete → 14 days air curing: 1.51 N/mm² → 14 days air curing followed by 14 days immersion in water: 3.54 N/mm² ○ Adhesion to iron: 28 days 1.53 N/mm² ● For more details, please contact us or download the catalog.
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Applications/Examples of results
【Applications】 ○ Additional pouring and raising for existing structures such as dams, flood barriers, and waterways ○ Additional pouring and raising for seismic reinforcement of various public facilities ○ Other horizontal and vertical joint surfaces between new and old concrete in concrete slabs, beams, columns, etc. ● For more details, please contact us or download the catalog.
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Company information
Nihon Jikkou is a core company of a comprehensive engineering group that contributes to society through the production and sale of various related materials, starting with concrete anti-corrosion construction. Japan is now entering an era of high prevalence of social infrastructure such as water supply and sewage systems, with a vast number of concrete facilities being stockpiled. However, as these facilities age and deteriorate, it has become an urgent issue to systematically and effectively implement repair and maintenance measures to sustain them in the future. Nihon Jikkou and its group companies address these challenges by proposing optimal deterioration prevention measures based on environmental factors and facility characteristics, along with excellent construction techniques, thereby meeting all maintenance and management needs for concrete structures.