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Related Concept Videos

Masonry in Cold and Hot Weather Conditions01:21

Masonry in Cold and Hot Weather Conditions

314
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...
314
Design Example: Managing Concrete Workability01:14

Design Example: Managing Concrete Workability

275
This example deals with managing the workability of concrete for a raft foundation project under hot weather conditions. Workability is crucial for ensuring the concrete is easy to place, compact, and finish. In this scenario, a slump test — a common method to measure the workability of fresh concrete — initially indicated low workability. This was attributed to the rapid water loss from the concrete mix, exacerbated by the high temperatures causing the course aggregates to heat up.
275
Abrasion Resistance of Concrete01:23

Abrasion Resistance of Concrete

476
Abrasion resistance is an essential characteristic of concrete that determines its durability and longevity under various wear conditions. Concrete surfaces are vulnerable to different types of abrasion. For instance, surfaces may wear down due to the constant movement of vehicles or be eroded by solids carried in water, as seen in concrete canal linings. Specific tests are conducted to measure the abrasion resistance of concrete.
One such test is the revolving disc test, where three plates...
476
Hot Weather Concreting01:20

Hot Weather Concreting

281
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,...
281
Moisture Content and Bulking of Aggregate01:10

Moisture Content and Bulking of Aggregate

404
The moisture content of aggregates is a crucial factor in construction, particularly in concrete mixing, as it influences the total water required in the mix. Moisture content represents the water coated on the exterior surface of the aggregate existing in a saturated and surface-dry condition. The total water content of a moist aggregate is the sum of its moisture content and water absorption.
When aggregates are exposed to rain or sit in stockpiles, they absorb moisture, which must be...
404

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Resonant Acoustic Spectroscopy for Measuring Complex Modulus of Bitumen.

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Rheological, physicochemical, and microstructural properties of asphalt binder modified by fumed silica nanoparticles.

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Updated: Jan 9, 2026

Determination of the Friction Coefficients of Icy Pavements Under Different Amounts of Snowfall
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Alternative to MSCR Test: A Novel Rheological Method for Evaluating Asphalt Mastic Performance at High Temperatures.

Stefan Trifunović1, Johannes Büchner1, Michael P Wistuba1

  • 1Braunschweig Pavement Engineering Center (ISBS), Technische Universität Braunschweig, 38106 Braunschweig, Germany.

Materials (Basel, Switzerland)
|December 11, 2025
PubMed
Summary

A new Single Shear Creep Test (SSCT) offers a better way to evaluate high-temperature asphalt mastic performance. This rheological method provides more reliable results than the Multiple Stress Creep Recovery Test (MSCRT) for asphalt mixtures.

Keywords:
Dynamic Shear RheometerMultiple Stress Creep and RecoverySingle Shear Creep testasphalt masticfillerrheology

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Area of Science:

  • Materials Science
  • Civil Engineering
  • Rheology

Background:

  • Asphalt mastic's high-temperature performance is crucial for preventing permanent deformation in asphalt mixtures.
  • Current evaluation methods, like the Multiple Stress Creep Recovery Test (MSCRT), are not ideal for asphalt mastic.
  • A standardized test for high-temperature asphalt mastic evaluation is lacking.

Purpose of the Study:

  • To introduce and validate the Single Shear Creep Test (SSCT) as a superior rheological method for assessing asphalt mastic at high temperatures.
  • To compare the effectiveness of SSCT against the established MSCRT for asphalt mastic characterization.
  • To identify key factors influencing asphalt mastic behavior at elevated temperatures.

Main Methods:

  • Developed and applied the Single Shear Creep Test (SSCT) using a Dynamic Shear Rheometer (DSR).
  • Conducted comparative testing on 45 asphalt mastic variants using both SSCT and MSCRT.
  • Varied asphalt binder types, mineral fillers, and filler-to-asphalt binder ratios (f/b) in the experimental design.

Main Results:

  • The SSCT demonstrated superior consistency and rheological meaningfulness in differentiating asphalt mastic performance compared to MSCRT.
  • Asphalt binder type and the filler-to-bitumen (f/b) ratio were identified as significant factors affecting high-temperature mastic behavior.
  • The influence of filler type was generally limited, with hydrated lime being a notable exception.

Conclusions:

  • The Single Shear Creep Test (SSCT) is a more robust and reliable method for evaluating the high-temperature performance of asphalt mastic.
  • Understanding the impact of binder type and f/b ratio is essential for optimizing asphalt mastic formulations.
  • Further research may refine the application of SSCT for asphalt mixture design and performance prediction.