수집하는 개인정보 항목
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수집항목
회사명, 담당자명, 성명, 전화번호, 이메일, 제목, 문의내용, 쿠키
개인정보 수집방법
제품문의, Q&A
Product Introduction
Principle & Core Technology
| UNDER DRAIN Principle & Core Technology | |||
| Mineral Permeable Concrete | Dual Porosity Structure | Check Valve | Dry Installation Method |
|---|---|---|---|
| Advanced technology of mineral permeable concrete with excellent durability and permeability sustainability | Utilizes the principle of delaying drainage speed through a dual porosity structure to minimize the impact on the soil foundation | Inflow water naturally drains into the soil foundation, while backflowing groundwater is blocked | Can be installed quickly in both existing and newly constructed manholes, even in situations where water is inflowing or backflow occurs |
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| Ensures structural stability | Prevents sinkholes in the soil foundation | Effectiveness in preventing groundwater backflow | Ensures easy and convenient installation |
| UNDER DRAIN Principle & Core Technology | |||
| Mineral Permeable Concrete | Dual Porosity Structure | ||
|---|---|---|---|
| Advanced technology of mineral permeable concrete with excellent durability and permeability sustainability | Utilizes the principle of delaying drainage speed through a dual porosity structure to minimize the impact on the soil foundation | ||
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| Ensures structural stability | Prevents sinkholes in the soil foundation | ||
| Check Valve | Dry Installation Method | ||
| Inflow water naturally drains into the soil foundation, while backflowing groundwater is blocked | Can be installed quickly in both existing and newly constructed manholes, even in situations where water is inflowing or backflow occurs | ||
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| Effectiveness in preventing groundwater backflow | Ensures easy and convenient installation | ||
Effect
| UNDER DRAIN Effectiveness | |||
| Before Installation | After Installation | ||
|---|---|---|---|
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Existing manholes are sealed structures without proper drainage channels for surface water runoff Due to the absence of drainage mechanisms, approximately 90% of the manholes are constantly flooded |
After drilling the bottom surface of the manhole, install UNDER DRAIN Drainage and prevention of groundwater backflow through UNDER DRAIN |
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Due to the sealed structure of underground manholes, constant flooding occurs due to water infiltration from the surface Surface water and groundwater continuously infiltrate through the upper openings and pipelines of the manhole Groundwater infiltrates through the cable conduits |
Reduction of internal pumping, cleaning, and diagnostic costs within the manhole through UNDER DRAIN Prevention of aging and reduction in failure rates of underground cables and infrastructure Reduced diagnostic time for emergency inspections during heavy rain and other events like concentrated rainfall Reduced risk of safety accidents and decrease in complaints |
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Performance
Installation and maintenance are easy.
It can be easily installed on both existing and newly constructed manholes without structural changes. Additionally, the replacement and maintenance of check valves and sludge filtration filters are simple and convenient.
| Leakage & Filtering Test | ||
| Test Items | Performance Standards | Maximum Test Result |
|---|---|---|
| Leakage Prevention Test | No Leakage Detected | No Leakage Detected |
| Sludge Filtering Test | - | Excellent Filtration Performance |
It prevents the backflow of groundwater.
It blocks the water flowing into the manhole due to rising groundwater levels through a check valve designed to prevent backflow.
| Stability Test | ||
| Test Items | Performance Standards | Maximum Test Result |
|---|---|---|
| Backflow Prevention Test | No Backflow Detected | No Backflow Detected |
| Backflow Prevention Comparative Test | No Backflow Detected | No Backflow Detected |
It has excellent drainage sustainability and stability.
The continuous porosity is organically formed, resulting in excellent permeability performance. Furthermore, even after contamination from sludge, the sustainability of the permeability performance remains excellent.
| Mock Test | ||
| Test Items | Performance Standards | Maximum Test Result |
|---|---|---|
| Permeability Coefficient | - | 1.8mm/s |
| Drainage Performance Mock Test | - | 8.9ml/s |
| Permeability Performance Endurance Test | - | Grade 1 |
| Soil Loss Mock Test | - | 5 Times Safer Compared to Non-Permeable Concrete |
Safe from harmful substances.
Free from harmful substances such as Pb, Cd, Hg, and Cr6+, ensuring safety.
| Backflow Prevention Test | ||
| Test Items | Performance Standards | Maximum Test Result |
|---|---|---|
| Heavy Metal Detection Test | Pb: Below 90 | Not Detected |
| Cd Below 50 | Not Detected | |
| Hg Below 25 | Not Detected | |
| Cr6+: Below 25 | Not Detected | |
It has excellent strength and durability.
The manufacturing technology of mineral permeable concrete, known for its excellent strength and durability, is applied to ensure structural safety.
| Durability Test (Applied as per NET Disaster Prevention Technology No. 2018-9) |
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| Test Items (Unit) | Performance Standards | Maximum Test Result |
|---|---|---|
| Compressive Strength (MPa) |
28-day Strength: Above 34.5 MPa (Safety Manhole Standard) |
14-day Strength: 36.9 MPa 28-day Strength: 38.1 MPa |
| Freeze-thaw Resistance | Compressive Strength: Above 80% | 93% |
| Compressive Fatigue Test | - | No abnormalities detected |
| Salt Water Spray Test | No occurrence of algae or moss | No occurrence of algae or moss |
| Visual and Structural Inspection | - | No abnormalities detected |
| Component Tensile Test | ABS : 280~490N/cm² | 399N/cm² |
| SUS: Above 700 N/mm² | 808N/cm² | |