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Asphalt Testing Articles

Skid Resistance Tester Calibration & Maintenance Guide
Skid Resistance Tester Calibration & Maintenance Guide

Unreliable surface friction data can destroy an engineering firm's credibility overnight. On asphalt highways or wet floor tiles, securing verifiable friction readings prevents severe liability claims. Yet research shows two pendulum devices meeting ASTM E303 standard limits can still disagree by over 60% without proper skid resistance tester calibration.

Skid Tester vs Digital Tribometer: Best Friction Setup
Skid Tester vs Digital Tribometer: Best Friction Setup

Inadequate surface friction causes severe vehicle crashes and expensive slip-and-fall litigation. Because peer-reviewed research confirms that pendulum skid testers vs digital tribometers do not behave interchangeably across wet floors and pavements, choosing the right instrument determines your regulatory compliance standing. 

In this guide, we evaluate a skid tester vs digital tribometer alongside published empirical evidence to help your team select the ideal setup.

Skid Resistance and Friction Tester: Methods & Standard
Skid Resistance and Friction Tester: Methods & Standard

Wet pavements and slippery floors create immediate legal liabilities. For highway engineers and property managers, verifying surface grip is a critical daily priority to prevent accidents and lawsuits. 

You need the exact compliance methods and testing hardware to secure legally defensible data. Read on to align your testing program with global regulations and select the right instruments for your operations.

What is a Gyratory Compactor? Tech & Standards Guide
What is a Gyratory Compactor? Tech & Standards Guide

Pavement survival relies entirely on hitting exact compaction targets. Legacy impact tests fail to mirror real-world highway conditions, but gyratory compaction replicates field roller forces perfectly.

We built this guide to help your laboratory secure predictive volumetric data, prevent costly pavement failures, and guarantee compliance with strict international standards. Let us review the critical mechanics.

Asphalt Mix Design Guide: Marshall vs Superpave Methods
Asphalt Mix Design Guide: Marshall vs Superpave Methods

Boost your business standing by delivering asphalt results that remain in top-tier shape no matter how the weather behaves. Most industry leaders are excited to choose between the long-trusted Marshall hammer and the high-performance Superpave spin to find that perfect balance of strength and value. 

We have put together this clear-cut look at both paths to help you produce a road that is sheer perfection for decades to come. Check out our breakdown below to pick the winning gear for your next high-performing project.

Expert Guide to Asphalt Testing Methods and Equipment
Expert Guide to Asphalt Testing Methods and Equipment

Are you tired of dealing with premature road failures and expensive rework? Ensuring pavement longevity starts with precise laboratory testing. 

In this guide, we show you the essential methods, global standards, and asphalt testing equipment you need to build roads that remain solid for decades.

Dynamic Shear Rheometer (DSR) Test: The Complete Guide
Dynamic Shear Rheometer (DSR) Test: The Complete Guide

How can you ensure your asphalt binder will perform flawlessly under the stresses of traffic and extreme temperatures? The answer lies in mastering a remarkable piece of equipment: the Dynamic Shear Rheometer (DSR).

This instrument is the definitive tool for characterizing a binder’s properties, allowing engineers to design durable, long-lasting pavements with confidence. Understanding this test is the single most important step for any lab committed to delivering superior quality and compliance.

Why and How to Calibrate Retroreflectometer Units
Why and How to Calibrate Retroreflectometer Units

We are convinced that ensuring highway markings remain brilliantly visible at night is our top priority. Clear visibility isn't just a nice-to-have feature; it is a vital safety requirement during heavy downpours or thick morning haze. As the experts responsible for infrastructure, you recognize that maintaining that vital "glow" is the most effective method to prevent accidents before they occur.

Front Mounted Retroreflectometers vs Handheld Comparison
Front Mounted Retroreflectometers vs Handheld Comparison

If those road lines don't bounce light back to the driver, safety just vanishes. 

For the teams out there, hitting those ASTM E1710 or EN 1436 marks is a total requirement that can't be skipped. The big hurdle is picking a path that keeps your cash where it belongs while getting those numbers exactly right. 

At Qualitest, we see the choice between handheld vs front-mounted retroreflectometers as a way to get the absolute most for your investment, and we’ve got the tough, dependable tools to help you pick the winner.

Choosing Single-Angle vs Multi-Angle Retroreflectometers
Choosing Single-Angle vs Multi-Angle Retroreflectometers

How can you be certain your pavement stripes are actually throwing back enough light?

We think that having the hard data in your hand is the only real way to stop worrying about whether those lines are safe enough. To make the smartest choice for your crew, you’ve got to settle the single-angle vs multi-angle retroreflectometers debate once and for all.

We’re going to lay out the straight facts, including the latest research on angular range and adaptability, so you can find the hardware that keeps your business looking like the top-tier pros you are.