Humboldt Blog

Concrete, Non-destructive Testing (NDT)

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...

Asphalt, Concrete

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,...

Asphalt, Technical

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...

Laboratory, COVID-19

This guest post was written by Jack Germaine. He is a Research Professor of Civil and Environmental Engineering at Tufts University. Universities were quick to adapt to the norms of social distancing. Various modes of remote delivery were implemented to allow students to continue educational progress. Laboratory subjects are...

Concrete

Knowing the quality of the concrete being used in construction is a requirement at building sites worldwide. Concrete slump testing is a quick and easy procedure that can be performed in real-time and on-site that is used to determine the workability as well as the consistency of fresh concrete. Concrete with slump values that...

Soil, Nuclear Density Gauge

Soil density is an important factor to most construction projects and provides critical support for buildings, roads, pavements and other structures. Soil is frequently disturbed during the development process resulting in the introduction of air or water into the ground. Any water particles or air voids must be removed from...

The WofA, or Women of Asphalt, is a national organization aimed at supporting women who work in the asphalt industry through education, mentorship and advocacy. Women of Asphalt was formed in 2017 with five founding members and has grown to over 1,000 members in 2020. There is no cost to join and you can do so at:...

Asphalt, Balanced Mix Design

This guest post is written by Fan Yin, PhD. He is an Assistant Research Professor at the National Center for Asphalt Technology at Auburn University. We are sharing it here, with his permission, but the original article may be found here. The Hamburg Wheel Tracking Test (HWTT) per AASHTO T 324 is widely used by asphalt...

Asphalt, Ductility Testing

What is Ductility Testing? Materials that are capable of deforming plastically before fracturing are defined as ductile. Ductile testing, therefore, involves measuring the amount of stress that can be applied to a material without fracture. Why is Ductile Testing Important? Ductile testing will tell you the tensile strength of...

Soil, Hydrometer Analysis

What is a Hydrometer? Hydrometers are used to measure the relative density of a liquid. They are primarily made of glass and have two parts: the hydrometer with a mercury weighted bulb at the bottom and a cylinder with graduation marks. The science behind the hydrometer is simple – the lower the density of the liquid, the more...

Added to Shopping Cart

Cart Subtotal (1 ):

View Cart Checkout

The following items were already in your cart and have had their quantity increased. If you did not intend for this, we recommend that you edit your shopping cart.

Discover Additional Items