The only measuring instrument that can measure the entire amount of concrete placement.
The continuous RI concrete moisture meter "COARA" can be installed in the piping section of a concrete pump truck to continuously measure the unit water volume of fresh concrete in real-time. 【Features】 ■ In concrete structures such as public civil engineering works and 200-year houses, where long-term durability is required, ensuring the quality (unit water volume) of the total poured quantity is extremely useful. ■ Measurement data can be transmitted via communication lines, allowing simultaneous verification at both the site office and the ready-mix concrete plant. This enables immediate action to be taken if any abnormal values are detected, ensuring the quality of the concrete. ■ The measured unit water volume data is stored as electronic data, which can be utilized as traceability documentation for the maintenance management of concrete structures in the future.
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【Specifications】 ■ Measurement Method - Density Meter: Gamma-ray transmission type - Moisture Meter: Fast neutron transmission type ■ Measurement Items - Density Meter: Unit volume mass 1500–2500 (kg/m³) - Moisture Meter: Unit water content 100–250 (kg/m³) ■ Measurement Piping: 4-inch piping (100A), 5-inch piping (125A), 6-inch piping (150A) ■ Radiation Source - Stainless steel capsule sealed - Density Meter: Cobalt-60 2.59MBq - Moisture Meter: Californium-252 1.11MBq ■ Display/Recording: Measurement computer (included with rental items) ■ Communication: Bluetooth Class 1 ■ Power Supply: Internal battery (continuous use for over 12 hours) ■ Main Unit Weight - Density Meter: 22kg - Moisture Meter: 20kg ■ Main Unit Dimensions - Density Meter: 520W × 230D × 430H (mm) - Moisture Meter: 520W × 270D × 430H (mm) ■ Other: Built-in vibration sensor *For more details, please download the PDF or contact us.
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【Purpose】 ■ Concrete quality control ■ Measurement of unit water volume 【Examples of Achievements】 ■ Public works (Ministry of Land, Infrastructure, Transport and Tourism; NEXCO commissioned projects) and others
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Company information
Since our establishment, we have developed many measurement technologies that utilize various types of radiation emitted by radioisotopes, particularly gamma rays and neutron rays, in the construction field, specifically the RI method. The characteristics of the RI method are "non-destructive," "rapid," and "high precision." Currently, based on the development of unique measuring instruments that leverage these characteristics and the proposal of investigation methods, we focus on consulting that comprehensively addresses issues related to ground and soil construction by combining soil and geological surveys. Additionally, we also engage in the sale and rental of these RI instruments. Please feel free to contact us if you have any requests.
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