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Gilson Insights

Have questions about your materials testing equipment?  We have the answers to these questions and much more right here! Check back monthly for long-form blog posts, how-to guides and infographics. We’ll address industry insights, the operation and maintenance of specific equipment, and our product line recommendations, all designed to better serve you.

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Sulfur Capping Concrete Test Cylinders: Equipment & Techniques

The two most popular types of end treatment for cylindrical concrete specimens are sulfur mortar capping and neoprene compression pads. Both have their advantages. Neoprene pads are convenient and reusable many times over. Sulfur mortar is economical when testing large numbers of cylinders, and is often the preferred end treatment for cylinders because of its long history of use. Reliable strength results and consistent display of fracture patterns are predictable and well understood. In this article, we go over the equipment and techniques used for sulfur mortar capping.

Aggregate Shape and Texture, Tests and Testing Equipment

Construction aggregates are traditionally mined or extracted from natural sand and gravel deposits or geological rock formations, then further crushed and sorted into size fractions for blending. In this blog article, we discuss the tests and equipment to determine the characterization of aggregate shape properties for roads and structures.

Alkali-Silica Reaction (ASR) in Concrete Explained

Although Alkali-Silica Reactivity (ASR) has created problems in concrete mixtures for centuries, the mechanism was not understood and documented until the mid-1930s. ASR is now recognized as a significant cause of concrete deterioration anywhere in the world where siliceous aggregates are found. In this blog article, we discuss what ASR is, the effect it has on concrete, prevention, and the equipment to use for testing.

Portable Field Scales: A Guide to Features and Selection

Some test methods must be performed on the spot to ensure that the best products are being produced or placed following specified procedures. Portable weighing devices are especially important to operate accurately and conveniently in remote locations. In this blog post, we’ll discuss what to look for when choosing one.

Corrosion of Steel Reinforcement in Concrete: Detecting, Mapping, and Monitoring

The corrosion of reinforcing steel is a significant and preventable problem that shortens the useful lifespan of concrete structures. The mechanisms for its development and how it eventually damages the concrete structures it was designed to protect have been well-known for over 100 years. Similar to progressive disease, early detection and monitoring are the most effective strategies to minimize problems. Fortunately, innovative nondestructive instruments are making it easier and more efficient to find, follow, and repair corrosion before extensive damage occurs.

5 Concrete Strength Testing Methods – Non-Destructive

Testing the properties of hardened concrete is central to evaluating a structure, whether it is decades old or still under construction. In-place testing of concrete is a significant part of assessing an existing structure's safety and physical condition for routine maintenance before modifications. This blog post will discuss in-place and nondestructive methods and equipment to measure concrete strength.

Ground Penetrating Radar for Concrete Evaluation: What's the latest?

Ground Penetrating Radar (GPR) is a powerful tool for the nondestructive testing and evaluation of reinforced concrete. Next-generation refinements featured on these versatile new models from Gilson simplify the location and mapping of reinforcing steel bars, tendons, and other embedments while assessing homogeneity, measuring thickness, and detecting cracks, voids, and other discontinuities. GPR units connect wirelessly to Apple iPad® tablets for potent computing power, live 3D and Augmented Reality (AR) rendering, high-resolution display, and fast, easy upgrades. Encrypted Wi-Fi connection stores data in the cloud for instant sharing and collaboration.

The Automation Revolution: Concrete Compression Machines

Automatic concrete compression machines are here to stay and they promise to revolutionize concrete testing. Programmable loading and load rates, break detection, and data handling ensure full compliance to selectable test specifications, more accurate results, and all but eliminate human error. Less operator input means more tests completed in less time.

Concrete Resistivity: A Guide for Nondestructive Testing

This blog post provides insight into test methods and testing equipment for use in concrete resistivity testing. We discuss the use of the Proceq Resipod Concrete Resistivity Meter for surface resistivity and how to perform bulk resistivity.

Concrete Moisture Testing: What Equipment Works for Your Application?

The amount, type, location, and movement of moisture in a concrete slab need to be clearly understood to avoid problems when placing a flooring system over it. In this blog, we take a look at the various methods and equipment to use for testing concrete for moisture.