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Relative Density of Free-Draining Soils: Compaction Tests on Sand & Gravel

September 11, 2025

<img loading="eager" style="display: block; margin-left: auto; margin-right: auto; width: 100%; max-width: 715px; height: 100%; max-height: 515px;" alt="Relative Density of Free-Draining Soils" src="/Content/Images/uploaded/blog/2025/Sep/September-2025-Blog-hero.jpg" width="715" height="515" /><p>Field density tests determine the degree of soil compaction, which is used to estimate strength and stability. Read our blog to learn about soil characteristics and how relative density of soil is calculated.</p>

Tags: Soil Testing , Soil Density , Quality Control , Compaction , Relative Density

Test Sieve Accuracy: Verification, Calibration, & Performance

February 07, 2024

<div><a href="/blog/test-sieve-accuracy"><img loading="lazy" src="/Content/Images/uploaded/blog/2024/feb/test-sieve-acccuracy.jpg" alt="Test Sieve Accuracy" style="display: block; margin-left: auto; margin-right: auto; width: 100%; max-width: 715px;" /> </a></div><p>Verification, calibration, and performance tests all contribute to the accuracy of test sieves. Understanding sieve accuracy will ensure you get the information you need out of your test sieves or screen trays.</p>

Tags: Resource Guide , Maintenance , Quality Control , Quality Assurance , Sieve Analysis , Sieving , Particle Sizing , Particle Size Distribution , Sieve Calibration , Test Sieve Verification , Test Sieve Certification

Sieving and Screening Accessories for Better Testing

August 03, 2023

<div><a href="/blog/better-testing-with-the-right-sieving-screening-accessories"><img loading="lazy" src="/Content/Images/uploaded/blog/2023/august/august-hero-2023.jpg" alt="Sieving and Screening Accessories Article" style="display: block; margin-left: auto; margin-right: auto; width: 100%; max-width: 715px;" /> </a></div><p>Particle sizing with test sieves is a hands-on process with many small, repetitive tasks that must be carried out properly. Selecting the right accessories for each job and using them correctly makes the work faster and easier, but it also significantly affects testing efficiency, accuracy, and repeatability. This article closely examines the tools that optimize test sieving procedures and ensure your sieves meet the requirements of standard test methods.</p>

Tags: Equipment Selection Guide , Maintenance , Quality Control , Quality Assurance , Sieve Analysis , Sieving

Archive

Gilson Testing Screen Trays: Easy Maintenance for Optimum Accuracy & Maximum Life

December 08, 2021

<div><a href="https://www.globalgilson.com/blog/screen-tray-maintenance"><img loading="lazy" src="/Content/Images/uploaded/blog/2021/December/december-2021-hero.jpg" alt="Easy Maintenance Tips for Your Gilson Testing Screen Trays" style="display: block; margin-left: auto; margin-right: auto; width: 100%; max-width: 715px;" /> </a></div><p>Screen Trays are the heart of all Gilson Testing Screen Shakers. In this blog post, we discuss how to get the most accurate results and extended life from your testing screen trays.</p>

Tags: Maintenance , Quality Control , Quality Assurance , Lab Equipment , Particle Sizing , Screen Shakers

Sand Equivalent Test Method Explained: The Purpose and The Process

March 03, 2021

<div><a href="/blog/sand-equivalent-method"><img loading="lazy" src="/Content/Images/uploaded/blog/2021/March/sand-equivalent.jpg" alt="Sand Equivalent Method: Explained and The Procedure Article" style="display: block; margin-left: auto; margin-right: auto; width: 100%; max-width: 715px;" /> </a></div><p>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.</p>

Tags: ASTM D2419 , AASHTO T 176 , Testing Insights , Equipment Selection Guide , Field Testing , Quality Control , Sand Equivalent Test

Reference Materials for Test Sieves: Performance Testing for Quality

February 21, 2019

<div><a href="/blog/reference-materials-for-test-sieves-performance-testing-for-quality"><img loading="lazy" src="/Content/Images/uploaded/news/February2019/testsievesperformancetesting.jpg" alt="Reference Materials for Test Sieves: Performance Testing for Quality" style="display: block; margin-left: auto; margin-right: auto; width: 100%; max-width: 715px;" /> </a></div><p>Reference materials for test sieves are used to evaluate and help ensure continued quality performance of sieves in compliance with ASTM or ISO standards. Sieve Verification Services provide further assurance of compliance through laboratory optical or microscopic examination.</p>

Tags: Standard Reference Materials , Test Sieves , Sieving , Quality Control , Quality Assurance , Sieve Calibration , General Lab , Resource Guide

5 Steps to Setting up a Flawless Quality Control Program

March 10, 2015

<div><a href="/blog/test-sieves-setting-up-a-quality-control-program"><img loading="lazy" src="/Content/Images/uploaded/blog/2015/march/sieves.jpg" alt="Gilson Sieves" style="display: block; margin-left: auto; margin-right: auto; width: 100%; max-width: 600px;" /> </a></div><p>Unsure of when to replace your sieves? The best place to start is with an ongoing, in-house quality control program. Learn how to implement this type of program in five easy steps.</p>

Tags: Quality Control , Sieving , Sieve Analysis , Test Sieves , Particle Sizing , Resource Guide , Quality Assurance , General Lab