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Related Concept Videos

Microcracking in Concrete01:20

Microcracking in Concrete

437
Microcracking in concrete refers to the tiny cracks that can form within the material even before any external load is applied. These microcracks typically occur at the interface between the coarse aggregate and the hydrated cement paste, often as a result of differential volume changes prompted by variations in stress-strain behavior, as well as thermal and moisture movement. Initially, these microcracks remain stable and do not grow substantially until the concrete is stressed to about 30...
437
Frost Action on Concrete01:27

Frost Action on Concrete

400
Concrete structures in cold climates, such as those along roadsides, can retain moisture. This moisture makes them susceptible to frost-related damage when temperatures fall below freezing. Adding moisture worsens the damage during temperature fluctuations, leading to repeated freezing and thawing. De-icing salts, spread over these structures to melt ice, add to the freeze-thaw cycle, and draw even more moisture into the concrete.
This freeze-thaw cycle primarily causes surface scaling, where...
400
Cold Weather Concreting01:27

Cold Weather Concreting

361
When freshly poured concrete is exposed to freezing temperatures before it has set, the water within the concrete can freeze. This expansion disrupts the setting process, delays chemical reactions necessary for hardening, and increases the volume of pores within the hardened concrete, which weakens its overall structure. If the concrete manages to reach an appreciable strength before it freezes, the damage can be somewhat mitigated.
To counteract the negative impacts of cold weather, ensuring...
361
Design Example: Joints in Concrete Pavements01:28

Design Example: Joints in Concrete Pavements

486
Concrete pavement joints are essential for maintaining the structural integrity and longevity of pavement by controlling where and how the pavement cracks. These joints can be categorized based on their functions, such as contraction or control joints, construction joints, isolation joints, and expansion joints.
Contraction joints are typically formed by sawing a groove into the concrete shortly after it has hardened. This creates a weakened vertical plane, deliberately encouraging cracking at...
486
Hot Weather Concreting01:20

Hot Weather Concreting

302
Concreting at elevated temperatures accelerates the hydration process, leading to quicker setting but potentially reducing the long-term strength of the concrete structure. Additionally, low air humidity fosters rapid moisture loss from the concrete, resulting in reduced workability, pronounced plastic shrinkage, and a higher likelihood of crazing.
Mitigating the heat increase in concrete can be economically achieved by shading aggregate stockpiles to prevent heating from solar radiation,...
302
Masonry in Cold and Hot Weather Conditions01:21

Masonry in Cold and Hot Weather Conditions

332
In cold weather, masonry construction requires specific precautions to ensure mortar does not freeze before curing, as this can significantly weaken its strength and watertightness. Mortar temperature should be maintained between 60°F and 80°F to support proper hydration and curing. Below 40°F, mortar water must be heated, but should not exceed 120°F as high temperatures can reduce mortar's compressive and bond strength.
Other key practices include keeping masonry units...
332

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Related Experiment Video

Updated: Jan 18, 2026

Determination of the Friction Coefficients of Icy Pavements Under Different Amounts of Snowfall
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CrackNet-Weather: An Effective Pavement Crack Detection Method Under Adverse Weather Conditions.

Wei Wang1, Xiaoru Yu1, Bin Jing1

  • 1College of Computer Science and Technology, Changchun University, No. 6543, Satellite Road, Changchun 130022, China.

Sensors (Basel, Switzerland)
|September 13, 2025
PubMed
Summary

Accurate pavement crack detection in bad weather is now possible with CrackNet-Weather. This new method improves road safety and maintenance by reliably identifying cracks even in rain and snow.

Keywords:
CrackNet-WeatherDynamic Sampling Upsampling BlockHaar Wavelet Downsampling BlockStrip Pooling Bottleneck Blockpavement crack detection

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Area of Science:

  • Computer Vision
  • Artificial Intelligence
  • Road Infrastructure Monitoring

Background:

  • Pavement crack detection is vital for road safety and maintenance.
  • Adverse weather conditions (rain, snow) significantly hinder accurate crack detection due to visibility issues and complex crack patterns.

Purpose of the Study:

  • To develop a robust and efficient pavement crack detection method for adverse weather conditions.
  • To improve the accuracy and practicality of automated road inspection systems.

Main Methods:

  • Proposed CrackNet-Weather, a novel deep learning model.
  • Incorporated Haar Wavelet Downsampling Block (HWDB), Strip Pooling Bottleneck Block (SPBB), and Dynamic Sampling Upsampling Block (DSUB).
  • Validated on a challenging dataset featuring rainy and snowy conditions.

Main Results:

  • CrackNet-Weather significantly outperformed existing baseline models.
  • Achieved notable improvements in mean Average Precision, particularly for challenging crack types (low-contrast, fine, irregular).
  • Demonstrated a practical balance between detection accuracy and computational efficiency.

Conclusions:

  • CrackNet-Weather effectively addresses the challenges of pavement crack detection in adverse weather.
  • The method is suitable for practical road inspection and large-scale deployment.
  • Enhances road safety and pavement maintenance capabilities.