Article List

• Things you need to know about falling weight deflectometer

  The Falling Weight Deflectormeter (FWD) came into being in the early 1970s. It is a pulsed dynamic sinuometer. It simulates the instantaneous impact of automobile load on the road surface and obtains the instantaneous deformation of the road surface. Its measurement results are more accurate, and the information is large.

  Industry news August 03, 2020
• Things you need to know about asphalt binder tester

  Asphalt binder tester for most people is absolutely a very new thing, many people do not even know the test of asphalt binder content is what the purpose. One might think that simply putting asphalt on the road would do the trick, but that's not the case. So what is the asphalt binder testing machine?

  Industry news July 31, 2020
• The usage of falling weight deflectometer

  Different bending basin radii were used for different pavement structures. Subgrade or flexible base asphalt pavement, sensor distribution within 2.5m from the load center can be used. For high grade highway with semi-rigid base asphalt pavement, the radius of influence of bending and sinking should be 3 ~ 5m. The sensor shall be arranged within a range of 3 ~ 4m from the load center and automatically measured under computer control. All test data can be displayed on the screen or printed or stored in the computer. Load, sinkage (basin), temperature of road surface, mean value of sinkage, distance between measuring points, standard deviation, coefficient of variation and data representing sinkage value and evaluation result can be output.

  Industry news July 28, 2020
• The test of falling weight defelctometer

  Road and road transport infrastructure is critical to the socio-economic advancement of a country, with the development of urban construction, the standard of road construction is getting higher and higher, therefore, Road quality inspection has became a important step in road construction, As one of the most advanced non-destructive testing equipments for pavement strength in the world, falling weight deflectometer can quickly and accurately detect and evaluate the strength of various structural layers or subgrades on the pavement.

  Industry news July 23, 2020
• The importance of an asphalt binder tester

  The importance of an asphalt binder testerIn the 1980s, the asphalt binder tester industry began to focus on the growing demand for a better understanding of the rheological properties of asphalt binders. Prior to this, basic flow characteristics were mainly measured by viscosity tests. For traditio

  Industry news July 27, 2020
• The importance of a kinematic viscometer

  Kinematic viscometers can play a huge role in measuring the viscosity of various liquids, so how is it different from other types of viscometers? Is there a disadvantage to the kinematic viscometer? How to use a kinematic viscosity meter to avoid errors and accidents?

  Industry news July 20, 2020
• The functions of an asphalt binder tester

  Chocolate pudding, synthetic rubber, toothpaste and asphalt… At first glance, these items seem to be randomly selected. Although it may not be obvious, these products have a common, basic characteristic-their rheology, or flow and deformation, can be measured with one instrument.

  Industry news July 13, 2020
• The application of falling weight deflectometer

  Since the evaluation indicators and standards specified in the current specification are based on the beckman beam test, the data measured by the falling weight deflectometer must be converted into beckman beam data through comparison test before strength evaluation can be carried out. However, the transformation relationship obtained by this simple regression analysis lost a lot of information of the measured data (especially dynamic information), and did not give play to the advantage of the measured sinker data form to evaluate the bearing capacity of the pavement structure.

  Industry news July 10, 2020
• The analysis of falling weight deflectormeter

  With the development of road traffic infrastructure construction, more and more attention has been paid to the quality of road construction. Falling Weight Deflectometer has also become an important tool that is increasingly being valued by civil engineers. The falling weight deflectometer is one of the most advanced non-destructive testing equipment for pavement strength in the world. The working principle is as follows: the falling weight deflectometer measures the dynamic deflection of the road surface and inversely calculates the rebound modulus of the road surface. It has become a hot topic in the highway industry around the world.

  Industry news July 06, 2020
• Should you buy a retroreflectometer?

  Many people know that retroreflectors can make a great contribution to ensuring road safety, but because retro reflector s are not really cheap, many people will hesitate: Should I invest in retroreflectors? Is this a cost-effective business?

  Industry news July 02, 2020