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"Presentation of Case Studies on Rockfall Countermeasure Construction Methods" - The rockfall countermeasure method "Stronger Method" utilizes existing rockfall protection fences, achieving both a sho...
- Renovation and repair methods
The rockfall countermeasure method "Stronger Method" will be featured in the April issue of "Construction Management Technology"!
We are pleased to announce that our company’s independently developed rockfall mitigation method, "Stronger Method," will be featured in the April issue of "Construction Management Technology." The "Stronger Method" allows for reinforcement and heightening of existing rockfall protection fences without the need for processing or dismantling them. No special equipment or skills are required, and it can be completed in just a few days. This method enhances rockfall capture performance while achieving "short construction periods and low costs." For more details, please check the "Related Links" in the middle of the page.
We protect precious lives, facilities, and property from unexpected flooding and inundation!
- Coating film waterproofing material/permeable waterproofing material
Beach nourishment project on the coast facing the Sea of Japan.
- Harbor Construction
- IoT
Introducing the advantages of battery-operated water level gauges! Easy relocation enhances the image for clients! Also serves as material for technical proposals and creative ideas!
- River construction
Three-color indicator light: Convenient usage techniques in conjunction with battery-operated water level gauge.
We would like to introduce convenient ways to utilize the newly released product, the "Three-Color Indicator Light," which was developed based on feedback from everyone. The "Three-Color Indicator Light" can be combined with a "Battery-Powered Water Level Gauge" to sound alarms based on segmented water level observations. Usage Examples: Monitor water level observations in three stages and take appropriate actions according to the level. Detect the risk of rapid water level rise during rainfall and take early preventive actions to ensure safety. - Set the baseline water level of 2m as Level 1: The green indicator light rotates, indicating standby. - Set the baseline water level of 4m as Level 2: The yellow indicator light rotates, indicating caution. - Set the baseline water level of 5m as Level 3: The red indicator light rotates, indicating evacuation. Additionally, the "Disaster Prevention Light" can display messages for workers and community members on a daily basis. Raising awareness of safety measures at the site is crucial through consistent practices such as daily KY (Kiken Yochi, or hazard prediction) and pointing out dangerous areas and points of caution. Let’s continuously display what to be cautious about during this season and strive to improve safety awareness across the entire site. Please feel free to utilize this for safety measures at the site, as well as for technical proposals and creative ideas. *For more details, please refer to the PDF document or feel free to contact us.
It's okay even if a large truck is loaded! *The only cable protector registered with NETIS, which promotes new technologies by the Ministry of Land, Infrastructure, Transport and Tourism.
- Safety and consumables
- Safety Supplies
- Temporary Construction Materials
Display water level observations in three stages! Detect the risk of rapid water level rise and take early preventive action!
- River construction
Three-color indicator light: Convenient usage techniques in conjunction with battery-operated water level gauge.
We would like to introduce convenient ways to utilize the newly released product, the "Three-Color Indicator Light," which was developed based on feedback from everyone. The "Three-Color Indicator Light" can be combined with a "Battery-Powered Water Level Gauge" to sound alarms based on segmented water level observations. Usage Examples: Monitor water level observations in three stages and take appropriate actions according to the level. Detect the risk of rapid water level rise during rainfall and take early preventive actions to ensure safety. - Set the baseline water level of 2m as Level 1: The green indicator light rotates, indicating standby. - Set the baseline water level of 4m as Level 2: The yellow indicator light rotates, indicating caution. - Set the baseline water level of 5m as Level 3: The red indicator light rotates, indicating evacuation. Additionally, the "Disaster Prevention Light" can display messages for workers and community members on a daily basis. Raising awareness of safety measures at the site is crucial through consistent practices such as daily KY (Kiken Yochi, or hazard prediction) and pointing out dangerous areas and points of caution. Let’s continuously display what to be cautious about during this season and strive to improve safety awareness across the entire site. Please feel free to utilize this for safety measures at the site, as well as for technical proposals and creative ideas. *For more details, please refer to the PDF document or feel free to contact us.
That sign marker will synchronize lighting via radio communication. With the adoption of solar power and EDLC, the running cost is "zero."
- Road signs and road accessories
Support for infrastructure maintenance management with high-precision, wireless, and long-lasting sensors!
- Other Software
Display construction site hazards in three levels! Great for safety measures and disaster prevention!
- Disaster prevention supplies
- Weather Survey
- IoT
Three-color indicator light: Convenient usage techniques in conjunction with battery-operated water level gauge.
We would like to introduce convenient ways to utilize the newly released product, the "Three-Color Indicator Light," which was developed based on feedback from everyone. The "Three-Color Indicator Light" can be combined with a "Battery-Powered Water Level Gauge" to sound alarms based on segmented water level observations. Usage Examples: Monitor water level observations in three stages and take appropriate actions according to the level. Detect the risk of rapid water level rise during rainfall and take early preventive actions to ensure safety. - Set the baseline water level of 2m as Level 1: The green indicator light rotates, indicating standby. - Set the baseline water level of 4m as Level 2: The yellow indicator light rotates, indicating caution. - Set the baseline water level of 5m as Level 3: The red indicator light rotates, indicating evacuation. Additionally, the "Disaster Prevention Light" can display messages for workers and community members on a daily basis. Raising awareness of safety measures at the site is crucial through consistent practices such as daily KY (Kiken Yochi, or hazard prediction) and pointing out dangerous areas and points of caution. Let’s continuously display what to be cautious about during this season and strive to improve safety awareness across the entire site. Please feel free to utilize this for safety measures at the site, as well as for technical proposals and creative ideas. *For more details, please refer to the PDF document or feel free to contact us.
Lightweight type" long-length fore piling method using "high-strength steel materials
- Tunnel Materials
Drinking water and industrial water are available! It sprays mist to minimize dust generation.
- Air conditioning equipment
- Mist Generator
- Other earthworks, foundation works, and exterior floors
In conjunction with weather forecasts, manage water levels in three stages to prepare for rapid increases due to heavy rainfall!
- River construction
This is a grating that reduces the risk of caster (wheel) entrapment and slipping on rainy days.
- Grating
The astonishing capabilities of the small marking robot.
- Other Software
Not heavy anymore! Not dangerous anymore! Significantly reduces the burden during the attachment and detachment of rods in bowling operations! Rod handling device RHS Eagle Grip Series.
- Earth retaining wall/foundation reinforcement
Utilize pinpoint forecasts on-site to avoid the danger of strong winds!
- Crane and others
【Examples of ZEROSAI Implementation】 Chiba Prefecture Medical Center Construction Project Utilized pinpoint forecasts on-site to avoid the risk of sudden heavy rain! Achieved weather DX using ICT!
We will introduce a case study of the natural disaster prevention system ZEROSAI (NETIS registration number QS-150021-VE). It can be utilized not only for safety measures but also for creative ideas and technical proposals. Challenges on-site: Key focus points for evaluation [Operational Environment] - Install the [N Sensor] near the site office to manage rainfall and wind speed. - Use the real-time wind speed values observed by the [N Sensor] to determine whether to stop crane operations. - Issue a work stoppage directive when the real-time rainfall observed by the [N Sensor] exceeds the threshold value. [Purpose of Introduction] - Due to the proximity to the sea and the lack of obstructions, the wind speed often exceeds the work stoppage threshold of 10 m/s two to three times a day. It is essential to understand wind conditions, as crane operations must absolutely stop when wind speeds reach 10 m/s or more. - Rainfall during concrete pouring or painting work prevents operations, making it crucial to predict, observe, and timely grasp the rainfall situation. ■ Proposal (Example) For more details, please download the PDF.
Abundant know-how and achievements! Reliable and proven technology for water absorption prevention materials.
- others
- stone
Magical Repeller Water Absorption Prevention Effect Case Photos
Introducing photos of the water repellency effect when water droplets are dropped using a pipette on a sample coated with "Magical Repeller" on a concrete surface! "Magical Repeller" is a high-performance penetrating water repellent agent based on silane and siloxane, developed to extend the lifespan of concrete structures. By applying it to the concrete surface, the water repellent components penetrate into the concrete and form a water repellent layer on the surface. This significantly suppresses the penetration of moisture and salts, which are causes of deterioration in RC structures, thereby improving durability.
Not heavy anymore! Not dangerous anymore! Significantly reduces the burden during rod attachment and detachment in bowling operations! Rod handling device RHS Eagle Grip Series.
- Earth retaining wall/foundation reinforcement
Not heavy anymore! Not dangerous anymore! Significantly reduces the burden during rod attachment and detachment in bowling operations! Rod handling device RHS Eagle Grip Series.
- Earth retaining wall/foundation reinforcement
Construction industry can quickly access linear precipitation band information for disaster prevention via smartphones or PCs.
- Weather Survey
Information on linear precipitation bands for the construction industry can be quickly accessed through disaster prevention boards.
Significant heavy rainfall due to linear precipitation zones occurs almost every year, resulting in numerous severe disasters. The Japan Meteorological Agency has been disseminating "Information on Significant Heavy Rain" as new information since June 17, 2021. In conjunction with this, the "Disaster Prevention System ZEROSAI" (NETIS registration number QS-150021-VE) displays information related to linear precipitation zones on the top page of the "Disaster Prevention Board" when the Japan Meteorological Agency issues "Information on Significant Heavy Rain," allowing users to check detailed content. Additionally, the following related information can also be confirmed: ■ Landslide Warning Information ■ Special Warnings and Advisories ■ Designated River Flood Forecasts ■ Record Short-Term Heavy Rain Information Please utilize the "Disaster Prevention Board" as one of the safety measures for construction sites, regardless of civil engineering or building construction, during the rainy season in May and June, as well as during the autumn typhoon season.
A spray method frame that can be constructed anywhere in the country, designed for cost reduction! It maintains the strength of conventional spray method frames and simple spray method frames while im...
- Earth retaining support
- Earthworks
- Pile and foundation work
[Update] The R-Teeframe construction method technical documentation has been updated.
We have updated the technical documentation for the cost-reduction spray method framework, RT Frame Method, which is being promoted at Kf. The new file name is: RT_gijutsu-shiryo_24Dec.pdf It can be downloaded from the catalog download page on Ipros. We hope you find it useful.
Automatic notification of weather information at construction sites on LINE WORKS, instantly informing about sudden changes in weather conditions at the site.
- Weather Survey
- Groupware
Meteorological Helpful Information "Danger Warning" Added - New Disaster Prevention Meteorological Information in Five Levels - Supervised by Sysmet Co., Ltd. Meteorologist
On November 11, 2025, a proposal to revise the "Disaster Prevention Meteorological Information" concerning floods, heavy rain, landslides, and storm surges was approved by the Cabinet. The implementation is scheduled for the rainy season in 2026. This article will explain what disaster prevention meteorological information is, the issues with the current system, and how the new disaster prevention meteorological information will change. Table of Contents 1. What is disaster prevention meteorological information? 2. Issues with the current disaster prevention meteorological information 3. How will the new disaster prevention meteorological information change? 1. What is disaster prevention meteorological information? Disaster prevention meteorological information refers to information related to disaster risks announced by the Japan Meteorological Agency. It is issued when the risk of disasters such as heavy rain, floods, strong winds, lightning, storm surges, and landslides increases, serving as a basis for decisions on evacuation and work suspension. Specifically, it includes alerts and warnings such as "Special Heavy Rain Warning," "Landslide Warning," and "Storm Surge Advisory," which are denoted by the suffixes "warning" or "advisory." It also encompasses various other information, such as "Meteorological Information on Significant Heavy Rain" that alerts to the risk of linearly organized precipitation bands, "Heat Stroke Warning Alerts" during summer, and "Typhoon Information." 2. Issues with the current disaster prevention meteorological information For details, please visit our website.
We support various repair design services for "small-scale bridges" - integrated method for expansion devices and deck waterproofing (AOS method) registered in NETIS.
- Bridge Materials
- Waterproofing Agent
- Joint material
Centralized management of on-site sea condition forecasts, weather observation information, and camera footage! Achieving weather digital transformation using ICT!
- Other civil engineering works
- Coastal construction
- Harbor Construction
[Compass PLUS Implementation Case] Hokuriku Regional Development Bureau - Coastal Beach Nourishment Project: Centralized management of sea condition forecasts, weather observation information, and camera footage on-site! Achieving weather digital transformation (DX) using ICT!
We will introduce a case study of the 【Compass PLUS】 (NETIS registration number QSK-210001-VE). It can be utilized not only for safety measures but also for creative ideas and technical proposals. Field Challenges: Key Points of Evaluation 【Operating Environment】 Install 【N Sensors】 and 【Web Cameras】 on-site to check the sea condition forecasts and weather observation information along with the camera footage within 【Compass PLUS】. Additionally, install a 【Disaster Prevention Light】 above the office to share information with workers on-site. 【Purpose of Implementation】 〇 Understanding weather and sea conditions is essential for construction near the coast. 〇 It allows viewing sea condition forecast information, weather observation information, and camera footage on the same site. 〇 The 【Disaster Prevention Light】 raises awareness of weather disaster prevention among on-site workers. 〇 When adverse weather prevents access to the site, use the 【Web Camera】 to remotely check the site conditions. ■ Proposal (Example) For more details, please download the PDF.
For those in the construction industry: Comparing the natural disaster prevention system ZEROSAI with weather information from other companies.
- Weather Survey
[Free Offer] Comparison Table of ZEROSAI and Other Weather Information for the Construction Industry
To obtain weather information at construction sites, there are various options available, ranging from free weather forecasts and free smartphone apps to paid weather information distribution services. In this regard, we have prepared a comparison table of our company's 【Natural Disaster Prevention System ZEROSAI】 NETIS registration number QS-150021-VE and other companies' paid services, which we hope will be helpful for those considering the introduction of weather data distribution services. Other companies have their own advantages in their services, so we would appreciate it if you could refer to what features are available and what aspects can be compared during your consideration. *For more details, please download the PDF or contact us.
The 'Kiemasen' is a marker pen that leaves a line outdoors for approximately 5 years. Registered technology with the Ministry of Land, Infrastructure, Transport and Tourism (Registration Number CB-220...
- Work tools
By applying the non-ionic polymer soil granulation agent and erosion control agent Polisoil, it demonstrates effectiveness in preventing rainwater erosion, seed loss, and sand drift!
- River construction
- Agricultural civil engineering works
- Civil Engineering Method
◆◆ Update ◆◆◆ The Polisoil Method, Achievement Collection Vol. 2 has been uploaded. ◆◆◆
★★────────────────────── Announcement October 25 Edition 【Update】We have uploaded the achievement collection Vol.2 of the Polysoil Method. ───────────────────────────────★★ We have uploaded the achievement collection Vol.2 of the 'Polysoil Method,' which demonstrates effectiveness in preventing rainwater erosion, seed loss, and sand drift. ■Polysoil Method Catalog Latest file name: porisoil_jisseki_vo2_220922sc.pdf You can download the PDF file from the special K-F site and catalog page on Ipros, so please make use of it.
Automatic notification of weather information at construction sites on Direct; instant alerts for sudden changes in weather conditions at the site.
- Groupware
- Weather Survey
Meteorological Helpful Information "Danger Warning" Added - New Disaster Prevention Meteorological Information in Five Levels - Supervised by Sysmet Co., Ltd. Meteorologist
On November 11, 2025, a proposal to revise the "Disaster Prevention Meteorological Information" concerning floods, heavy rain, landslides, and storm surges was approved by the Cabinet. The implementation is scheduled for the rainy season in 2026. This article will explain what disaster prevention meteorological information is, the issues with the current system, and how the new disaster prevention meteorological information will change. Table of Contents 1. What is disaster prevention meteorological information? 2. Issues with the current disaster prevention meteorological information 3. How will the new disaster prevention meteorological information change? 1. What is disaster prevention meteorological information? Disaster prevention meteorological information refers to information related to disaster risks announced by the Japan Meteorological Agency. It is issued when the risk of disasters such as heavy rain, floods, strong winds, lightning, storm surges, and landslides increases, serving as a basis for decisions on evacuation and work suspension. Specifically, it includes alerts and warnings such as "Special Heavy Rain Warning," "Landslide Warning," and "Storm Surge Advisory," which are denoted by the suffixes "warning" or "advisory." It also encompasses various other information, such as "Meteorological Information on Significant Heavy Rain" that alerts to the risk of linearly organized precipitation bands, "Heat Stroke Warning Alerts" during summer, and "Typhoon Information." 2. Issues with the current disaster prevention meteorological information For details, please visit our website.
Oil and detergent are naturally decomposed! It is an environmentally friendly multi-cleaner and oil dispersing detergent.
- Safety and consumables
The NEW Set Form NF method is a construction technique that offers excellent safety during installation, as well as preventing volume shrinkage of the foam after filling, making it a "safe," "reliable...
- Reinforcement and repair materials
- Tunnel Materials
- Civil Engineering Method
Maximum descent distance of 65m! A vehicle-type gondola that makes close visual inspections at the top of the pier easier. For efficient bridge inspection and repair.
- Tunnel Materials
Investigation, diagnosis, maintenance, and management emergency response spray for penetrating hardening agents such as concrete, brick, and rust, latent hardening epoxy resin.
- Structural Survey
It can be utilized at construction sites with a lot of crane work!
- Weather Survey
- Crane and others
[New Feature] It is now possible to forecast wind conditions by altitude. Strong wind measures for civil engineering and construction.
Thank you for always using the 【Disaster Prevention System ZEROSAI】 NETIS registration number QS-150021-VE. We have released a new feature, "Altitude-based Wind Forecast," which has been highly requested by our customers! A new section for "Altitude-based Wind Forecast" has been added to the site settings, allowing you to set the "Altitude." 【How to Set Up】 After logging into the disaster prevention panel, please proceed from the top left to "Settings" > "Site Settings" > "Change Settings" for the desired location. 【Setting Items】 In "Altitude-based Wind Forecast," the following settings are possible. *For more details, please visit our website or feel free to contact us.
By attaching it to the conventional air blast tank, it contributes to improving the efficiency of blasting operations through dust suppression and enhanced visibility.
- Mural
200% growth rate compared to conventional methods! High-strength waterproof sheets for river embankments *with construction case photos included.
- Airport facilities
- River construction
A disaster prevention panel that can centrally manage weather information at construction sites has released an email notification feature for "Special Heat Stroke Alert" and "Heat Stroke Alert."
- Weather Survey
[For Civil Engineering and Construction Supervisors] Regarding the Heat Index (WBGT) and Physical Work Intensity
Thank you for always reading. This time, we will deliver an article related to heatstroke. In the previous article, we explained the heat index (WBGT) as an indicator to measure the risk of heatstroke. WBGT is an index that quantifies the risk of heatstroke based on "temperature," "humidity," and "radiant heat." However, the factors contributing to heatstroke are not limited to the outside air. The work being performed at that time and the clothing being worn also significantly affect the risk of heatstroke. Therefore, to prevent heatstroke, it is necessary to consider two factors: "correction based on clothing combinations" and "WBGT standard values according to physical work intensity." In this article, we will introduce these two aspects. *For more details, please visit our company's website.*
Visualizing coastal gusts: Constantly illuminated three-color indicator lights for quick assessment of work feasibility.
- Anemometer
- Weather Survey
- Coastal construction
[ZEROSAI Implementation Case] Regional Development Bureau National Route No. 〇 Road Improvement Project
We will introduce examples of the implementation of the Natural Disaster Prevention System ZEROSAI (Registration Number QS-150021-VE) in civil engineering and construction work in the construction industry. It can be utilized not only for safety measures but also for creative ideas and technical proposals. [Before Implementation] Due to the proximity of the sea and the lack of obstructions, there were many sudden gusts of wind, making it difficult to determine whether it was safe to continue work. <Issues> - Checking weather apps for work decisions took time, and there was a time lag in informing the entire site. - Delays in deciding to halt work due to strong winds led to cases where work continued while risks were present. We introduced our Natural Disaster Prevention System ZEROSAI along with the optional three-color signal light. For more details, please visit our website or download the PDF.
The scope of bridge inspection work has significantly increased! The "gondola vehicle" can ascend and descend up to a maximum of 50 meters.
- Tunnel Materials
Remote monitoring of on-site rainfall and camera footage via the cloud! Centralized management of typhoon and linear precipitation zone information! Achieving weather digital transformation using ICT!
- Bridge Construction
【Examples of ZEROSAI Implementation】 Regional Development Bureau - Road Improvement Project in XX Area - Disaster Recovery Work - Remote monitoring of rainfall and camera footage on-site via the cloud! Centralized management of typhoon and linear precipitation zone information! Achieving weather digital transformation using ICT!
We will introduce a case study of the natural disaster prevention system ZEROSAI (NETIS registration number QS-150021-VE). It can be utilized not only for safety measures but also for creative ideas and technical proposals. Challenges on-site: Key points for evaluation 【Operating Environment】 Install the 【N sensor】 and 【Web camera】 at the top of the slope on-site. This allows for monitoring the entire site from above. Additionally, since there is no power supply on-site, operations will be conducted using a solar power system. 【Purpose of Implementation】 - The slope is 10 meters high, and due to the unstable ground after the earthquake, monitoring rainfall is essential. - A tool for centralized management of linear precipitation band information and weather forecasts is necessary. - If it rains, going to the site itself is dangerous, so remote monitoring is required. ■ Proposal (Example) For more details, please download the PDF.
Super large box culvert with post-tensioned PC steel materials arranged in the top slab.
- Secondary steel products
- Foundation construction
- Other civil engineering works
A large block retaining wall that creates a 5-degree slope simply by installing the product.
- Retaining wall
【NETIS Registration】"Smart Glass Cloud" allows you to select devices suitable for each site and usage scenario!
- Smart Glasses
Advanced automatic lubrication system born in Germany. High reliability adopted by OEMs in Europe and the United States. Automate lubrication to increase machine uptime! Flexible response to changes i...
- maintenance
- others
ZEROSAI [New Feature] Automatic notification of sudden heavy rain risk! Short-term precipitation email notification released.
- Weather Survey
[New Feature] Automatic notification of the risk of sudden heavy rain! Short-term precipitation email alerts.
Thank you for always using the Natural Disaster Prevention System ZEROSAI (Zero-Sai) NETIS registration number QS-150021-VE. In recent years, there have been frequent sudden and localized heavy rains due to phenomena such as linear precipitation zones, and there is a growing demand for quicker safety measures. Therefore, ZEROSAI has released a new feature for short-term rainfall email notifications. With the Natural Disaster Prevention System ZEROSAI, you can view the predicted rainfall intensity at registered locations, and with this new feature, emails can now be automatically sent when the predicted rainfall intensity exceeds the threshold. *What is rainfall intensity? *For more details, please visit our website or feel free to contact us.
Manage noise and vibration in the cloud along with on-site weather information.
- Vibration and Sound Level Meter
- Weather Survey
[ZEROSAI Implementation Case] Cloud-managed Noise and Vibration Meter NETIS Registration Number QS-150021-VE [Natural Disaster Prevention System ZEROSAI] Options
The "Cloud Management Type Noise and Vibration Meter" is an option for the "Natural Disaster Prevention System ZEROSAI" with NETIS registration number QS-150021-VE. This time, we will introduce a case study of ZEROSAI implementation in civil engineering and construction work. [Before Implementation] Data was saved on an SD card and periodically transferred to a PC. <Challenges> ■ The person in charge had to manually retrieve the SD card, which could only be done at specific times, making it cumbersome. ■ There were instances where the retrieval of the SD card was forgotten or it was damaged, leading to data loss. ■ Although it was set to visually display alarms when exceeding the standard values, the supervisor was not aware of it. *For more details, please refer to the PDF document or feel free to contact us.
Strong support for specialized tasks! Customization is possible to match the usage scene.
- Weather Survey
- Coastal construction
- Harbor Construction
Extremely high holding capacity for the rebar position in the simple spray application method framework!
- Civil Engineering Method
- Slope protection material
- Earth retaining wall/foundation reinforcement
★★Notice★★★ KEF is exhibiting at the Construction Technology Exhibition 2025 in Kinki★★★
Kef is exhibiting at the Wakayama Prefecture product booth at the Construction Technology Exhibition 2025 Kinki, held at Intex Osaka for two days starting from October 30, 2025. The exhibition will be open until 16:45 tomorrow, October 31, 2025 (Friday). If you have time and are nearby, we would be grateful if you could visit our Kef booth. The booth number is 162. I have uploaded images of the venue to the blog. I would appreciate it if you could check them out from the link below.