What Is a Proctor Compaction Test? Understanding Soil Density with Humboldt Equipment
- May 8th, 2025
- Category: Soil & Aggregate Moisture Testing
In the world of geotechnical engineering and construction, the stability and longevity of a structure often begin below the ground, with the soil. One essential process in assessing soil suitability is the Proctor Compaction Test, a laboratory method that determines the optimal moisture content at which soil achieves its... Read more >
Particle Size Analysis Using ASTM Mesh Test Sieves: A Comprehensive Guide
- January 6th, 2025
- Category: Soil & Aggregate Moisture Testing
Particle size analysis is crucial for determining the characteristics of construction materials and various granular substances. In the U.S., the ASTM mesh test sieve is one of the most widely used tools for this analysis. These sieves are integral to assessing material properties such as grading and uniformity, which are... Read more >
Understanding Cement with Vicat Testing
- June 25th, 2024
- Category: Equipment Guides
Understanding Cement with Vicat Testing The quality and performance of cement are crucial in construction projects. Vicat testing is a vital tool for assessing these properties, ensuring the cement meets the required standards. This blog post dives into the world of Vicat testing, explaining the different tests conducted and... Read more >
Development of the Asphalt Mixture Automated Testing System with Zero Intervention
- January 31st, 2024
- Category: Announcements, Guest Posts
This guest post was written by Andrew Cooper. The Asphalt Mixture Automated Testing System with Zero Intervention, developed by Dr. Fujie Zhou at Texas A&M University and soon to be manufactured by Humboldt, marks a significant advancement in asphalt mixture testing in the U.S. This innovative system is designed to automate... Read more >
Four Common Errors To Avoid When Performing a Pull-off Test
- November 18th, 2022
- Category: Equipment Guides
Four Common Errors To Avoid When Performing a Pull-off Test Pull-off testing using Hydrajaws equipment is easy, straightforward and accurate when done correctly. In this article we have identified four common mistakes, which may affect test results, as well as some methods to use to avoid these mistakes. 1. Incorrect use of the... Read more >
Curing Rooms for Concrete Specimen Testing
- September 28th, 2022
- Category: Equipment Guides
When it comes to testing concrete cylinders and cubes, the proper storage and curing of specimens is just as important as the testing process. Not paying attention to properly curing and storing specimens can lead to erroneous compression test results. Dry conditions, lack of humidity, low and high temperatures can all... Read more >
D6913 and D7928 Replace D422 Particle Size Analysis
- January 6th, 2022
- Category: Announcements, Guest Posts
This guest post was written by Jack Germaine . He is a Research Professor of Civil and Environmental Engineering at Tufts University. Determination of the particle size distribution (PSD) is one of the most requested soil characterization tests. The results are used for classification and estimation of engineering... Read more >
Protect Your Assets and Minimize Risk with Regular Concrete Inspection
- November 2nd, 2021
- Category: Equipment Guides
Climate Change is Corrupting Infrastructure As atmospheric CO2 levels continue to increase with global warming, the safety of concrete structures is in jeopardy. Climate change has become a major concern, and a contributing factor of reinforcement corrosion in buildings, bridges, and other concrete infrastructure around the... Read more >
The Infrastructure Bill and Effects on the Construction Materials Industry
- August 24th, 2021
- Category: Announcements
The new infrastructure bill passed the Senate on August 10 after months of tough negotiations. This spending package carries a $1 trillion price tag over five years. $550 billion is geared for transportation, broadband and utilities, while $110 billion is earmarked for roads, bridges and other major infrastructure projects,... Read more >
A Demonstration of the Asphalt Pavement Scanner
- April 8th, 2021
- Category: Guest Posts
This guest post was written by Chuck Oden, PhD of ESS. This white paper was originally published by ESS and we are sharing it here, with his permission. Introduction The Humboldt Asphalt Pavement Scanner (APS) is a revolutionary new system that provides detailed and comprehensive quality information for new asphalt mats without... Read more >