Benkelman beam deflection tester for static rebound deflection of pavements, used to evaluate overall pavement bearing capacity.
Overview
This instrument is used to measure the elastic deflection value of pavement under static loading or loading at a very low speed, which can well reflect the overall strength of the pavement.
Applications
• Bridge load testing and acceptance inspection
• Long-term structural health monitoring of highway and railway bridges
• Bridge safety assessment after natural disasters or overloading
• Research and educational laboratories
Features
• Robust construction suitable for both laboratory and field use
• Compliant with relevant Chinese and international testing standards
• Complete with calibration certificate and operation manual
Technical Specifications
Item | Specification |
Specifications | 3600mm, 5400mm, 7200mm |
Lever ratio | 2:1 |
Length from fulcrum to front measuring point | 2400mm |
Stiffness | With the center of the shaft hole as the fulcrum, load 200g at 1200mm from the fulcrum, its deflection shall not be greater than 0.05mm; dial gauge accuracy 0.01mm, range 10mm |
Material | cast aluminum |
Each set | 2 units / 4 pieces |
Standards
GB/T 13978, JTG/T J21, ASTM E4
Standard Delivery
• Main instrument unit
• Power cable
• Operation manual
• Spare parts kit
FAQ
Q1: What standards does the Pavement Deflection Tester (Benkelman Beam) comply with?
A1: The Pavement Deflection Tester (Benkelman Beam) is designed and manufactured in accordance with relevant Chinese national (GB) and transport industry (JTG) standards, as well as applicable ASTM and AASHTO international standards. A calibration certificate traceable to national standards is provided with each unit.
Q2: How often should the Pavement Deflection Tester (Benkelman Beam) be calibrated?
A2: We recommend annual calibration by authorized technicians or by iRoad after-sales service center. For high-frequency laboratory use, semi-annual calibration is advised. The instrument is supplied with a factory calibration certificate.
Q3: What is the lead time and do you provide training?
A3: Standard units are usually shipped within 7-15 working days. Custom configurations may require 20-30 days. iRoad provides on-site installation, commissioning and operator training for major equipment; remote video guidance is available for standard laboratory instruments.
Overview
This instrument is used to measure the elastic deflection value of pavement under static loading or loading at a very low speed, which can well reflect the overall strength of the pavement.
Applications
• Bridge load testing and acceptance inspection
• Long-term structural health monitoring of highway and railway bridges
• Bridge safety assessment after natural disasters or overloading
• Research and educational laboratories
Features
• Robust construction suitable for both laboratory and field use
• Compliant with relevant Chinese and international testing standards
• Complete with calibration certificate and operation manual
Technical Specifications
Item | Specification |
Specifications | 3600mm, 5400mm, 7200mm |
Lever ratio | 2:1 |
Length from fulcrum to front measuring point | 2400mm |
Stiffness | With the center of the shaft hole as the fulcrum, load 200g at 1200mm from the fulcrum, its deflection shall not be greater than 0.05mm; dial gauge accuracy 0.01mm, range 10mm |
Material | cast aluminum |
Each set | 2 units / 4 pieces |
Standards
GB/T 13978, JTG/T J21, ASTM E4
Standard Delivery
• Main instrument unit
• Power cable
• Operation manual
• Spare parts kit
FAQ
Q1: What standards does the Pavement Deflection Tester (Benkelman Beam) comply with?
A1: The Pavement Deflection Tester (Benkelman Beam) is designed and manufactured in accordance with relevant Chinese national (GB) and transport industry (JTG) standards, as well as applicable ASTM and AASHTO international standards. A calibration certificate traceable to national standards is provided with each unit.
Q2: How often should the Pavement Deflection Tester (Benkelman Beam) be calibrated?
A2: We recommend annual calibration by authorized technicians or by iRoad after-sales service center. For high-frequency laboratory use, semi-annual calibration is advised. The instrument is supplied with a factory calibration certificate.
Q3: What is the lead time and do you provide training?
A3: Standard units are usually shipped within 7-15 working days. Custom configurations may require 20-30 days. iRoad provides on-site installation, commissioning and operator training for major equipment; remote video guidance is available for standard laboratory instruments.
