Blog-Gilson Company, Inc

All Posts

Sieving & Screening

Sampling & Dividing

Aggregates

Asphalt

Concrete

Soils

General Lab

Latest Blog

Coarse Aggregate Gradation: Test Sieves or Screen Trays?

April 04, 2021

<div><a href="/blog/coarse-aggregate-gradation"><img loading="lazy" src="/Content/Images/uploaded/blog/2021/April/coarse-aggregate-gradation.jpg" alt="Coarse Aggregate Gradation: Test Sieves or Screen Trays?" style="display: block; margin-left: auto; margin-right: auto; width: 100%; max-width: 700px;" /> </a></div><p>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.</p>

Tags: ASTM C136 , AASHTO T 27 , Coarse Aggregate , Aggregate Gradation , Particle Sizing , Sieve Analysis , Screen Shakers , Test Sieves , Testing Insights , Resource Guide

Characteristics of Aggregates: Shape, Size & Specific Gravity

September 19, 2019

<div style="text-align: center;"><a href="/blog/aggregate-properties-shape-size-specific-gravity"><img loading="lazy" src="/Content/Images/uploaded/blog/2019/september/aggregates-properties.jpg" alt="Aggregate Properties You Need to Know, Part 2: Shape, Size & Specific Gravity" width="100%" max-width:="" 715px="" /> </a></div><p>Concluding our two-part series on aggregate characteristics. Find out how shape, size, and specific gravity play a part in determining the effectiveness of aggregates in construction projects.</p>

Tags: Aggregate Testing , Particle Sizing , Particle Angularity , Aggregate Gradation , Coarse Aggregate , Fine Aggregates , Aggregate Properties , Resource Guide

Streamlining Aggregate Gradation Tests: Tips and Tricks

May 16, 2019

<div><a href="/blog/streamlining-aggregate-gradation-tests-tips-and-tricks"><img loading="lazy" src="/Content/Images/uploaded/blog/aggregates/streamline-aggregate-tests.jpg" alt="Streamlining Aggregate Gradation Tests: Tips & Tricks" style="display: block; margin-left: auto; margin-right: auto; width: 100%; max-width: 715px;" /> </a></div><p>Sieving for particle size distribution is the primary test requested for construction aggregate samples. Whether field samples are being tested to evaluate a new aggregate source or just coming in as part of day-to-day quality control of production, particle size distribution is a primary consideration. If processing and sieving is not handled efficiently, it creates a backlog.</p>

Tags: Aggregate Testing , Aggregate Gradation , Testing Insights , Wet Sieving , Sample Prep , Sample Splitting , Sample Dividing , Fine Aggregates , Coarse Aggregate , Sieving