It is ideal for repairing defects in various concrete structures in freshwater and seawater.
Attack underwater mortar is a mortar material that allows for direct application in freshwater and seawater with minimal material separation, rapid strength development, and excellent performance. It is ideal for repairing damaged areas of various concrete structures in freshwater and seawater (such as the bottom slab of concrete structures that are constantly submerged) and for repairing significant unevenness before grout injection in freshwater and seawater. 【Features】 - Minimal material separation in freshwater and seawater, exhibiting high strength and excellent durability. - Excellent workability in freshwater and seawater, making repairs easy to perform. - Superior adhesion to concrete and mortar. - Registered in the Tokyo Port Authority's "New Materials and New Construction Methods Database" (Registration Number 22010). For more details, please contact us or download the catalog.
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basic information
【Standard Specifications】 [Standard Mixing Amount per Bag] ○ Powder (kg): 20 ○ Water (kg): 3.6 ○ Mixing Amount (ℓ): Approximately 11.1 [Standard Application Thickness] ○ Application Thickness per Time (mm): Base Plate Section 10–50 ○ Application Area per Bag (Mixture) (m²): 10mm Thickness: Approximately 1.1, 50mm Thickness: Approximately 0.2 [Usage per 1m³] ○ Powder (kg): 1,800 (90 bags) ○ Water (kg): 324 [Usable Time] ○ 20℃: 60 minutes 【Physical Properties and Performance】 ○ Flow Value (mm): Air-Cured 120 ○ Unit Volume Mass (kg/m³): Air-Cured 2,129 ○ Flexural Strength (N/mm²) at 28 Days → Water-Cured: 6.1 → Air-Cured: 7.1 ○ Compressive Strength (N/mm²) at 28 Days → Water-Cured: 51.1 → Air-Cured: 54.5 ● For more details, please contact us or download the catalog.
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Applications/Examples of results
【Purpose】 ○ Repairing defects in various concrete structures in freshwater and seawater (Bottom slab sections of concrete structures that are always underwater) ○ Repairing significant unevenness before grout injection in freshwater and seawater (Bottom slab sections of concrete structures that are always underwater) ● 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.
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