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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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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.

Triaxial Shear Testing of Soils, Understanding Methods and Equipment

This month's blog discusses the triaxial shear test of soil. It focuses on three different test methods, all with variable requirements based on soil types and properties of individual specimens.

Sample Dividing Coarse Materials: Volume, Particle Size, and Fractions
Sample Dividing Coarse Materials: Volume, Particle Size, and Fractions

In this blog post, we focus on the specialty large volume splitters. These sample dividers you may not see every day. They have unique features that could solve a problem for you when sample dividing coarse aggregates.

Concrete and Asphalt Core Drilling: When, Why, and How

This blog post will focus on the core drilling method and the core sampling equipment. We discuss why and how core samples are taken from asphalt and concrete. Lastly, we touch on some of the different lab tests performed.

What is a Sieve? Make Sure You Choose the Right One

Quick, name the most widely used and cost-effective scientific instrument in your laboratory. Some possibilities come to mind, but our argument is for the ordinary test sieve. In this month’s blog post we discuss the purpose of sieves and how to select the right sieve to fit your particle sizing needs.

Concrete Cylinder Testing - From the Field to the Lab

In this month's blog post we will focus on standard-cure cylinders made for compressive strength acceptance testing. Including the importance of cylinder testing, a quick guide on the procedure, and the equipment needed in the field and lab.

Specific Gravity of Soil - Understanding ASTM & AASHTO Methods

In this month's blog post we discuss the equipment and procedures that are used to perform the ASTM and AASHTO test method for Specific Gravity of Soil Solids.

Coarse Aggregate Gradation: Test Sieves or Screen Trays?

Does the particle size analysis of coarse aggregates always require a testing screen with large screen trays? In a situation where larger testing equipment is not available, there may still be ways to get the job done. Using conventional round test sieves for large particle sizes is less efficient, but still acceptable if done properly. We discuss test requirements, sieve capacities, and tips to help with equipment selection.

Sand Equivalent Test Method Explained: The Purpose and The Process

Fines and dust in asphalt and concrete aggregates have always been a problem. Whether naturally occurring or resulting from degradation during handling and transport, undesirable or unknown amounts of fines can impact the performance and cost of composite materials. This blog post discusses the importance, process, and procedure.

Rebar in Concrete: Nondestructive Characterization of Reinforcing Steel

Advances in technology continue to refine concrete cover meters and rebar locators, which have been around for decades and used to locate and identify concrete reinforcing steel accurately. They are integral to nondestructive evaluations of reinforced concrete structures and pavements to prevent damage to the reinforcing steel within the structure when drilling or cutting reinforced concrete. This blog post explores the features and capabilities of some of these popular instruments.