Models for Predicting Reflection Cracking of Hot-Mix Asphalt Overlays

November 17, 2010 rockman Comments Off

TRB’s National Cooperative Highway Research Program (NCHRP) Report 669: Models for Predicting Reflection Cracking of Hot-Mix Asphalt Overlays explores mechanistic-based models for predicting the extent and severity of reflection cracking in hot-mix asphalt overlays. [Source: […]

Design of Roadside Barrier Systems Placed on MSE Retaining Walls

October 26, 2010 rockman Comments Off

TRB’s National Cooperative Highway Research Program (NCHRP) Report 663: Design of Roadside Barrier Systems Placed on MSE Retaining Walls explores a design procedure for roadside barrier systems mounted on the edge of a mechanically stabilized […]

Garmin® chirp™ Brings Geocachers Even More Creativity, Connectivity

October 19, 2010 rockman Comments Off

GPS manufacturer Garmin has announced a small, $23 device that act as a beacon, broadcasting a wireless signal to compatible devices that they are near a Geocache or give them clues along the way. It […]

Creators of the Globe Drill GT3000 Mobile Drill

New Mobile Exploration and Geothermal Drill Rig Reportedly Most Powerful of Its Kind

October 19, 2010 rockman Comments Off

The Globe Drill GT3000 mobile drill rig takes about two semis to haul, but can drill holes as deep as some oil and gas rigs that take 40 or 50 semis to move. It has […]

American Geological Institute’s EARTH MAGAZINE now available in digital format

October 14, 2010 rockman Comments Off

Price is $20/year for 12 issues compared to $36/year for the print edition. No pricing yet for a combined print and digital subscription. [Source: EarthMagazine.org. Image: EarthMagazine.org]

Trimble Announces 4d Control Software for Structural and Geotechnical Monitoring

October 14, 2010 rockman Comments Off

At the INTERGEO 2010 conference in Cologne, Germany, Trimble announced its 4D Control Software for monitoring of movements on a variety of structures and geotechnical features. It even includes the ability to connect to various […]

Geosynthetic reinforced soil (GRS) bridge system, Defiance County, Ohio

Feds eye St. Lawrence NY’s cheap, speedy Geosynthetic Reinforced Soil (GRS) bridges

October 7, 2010 rockman Comments Off

New York’s St. Lawrence County DOT has attracted the attention of the FHWA…in a good way. The agency has built 5 Geosynthetic Reinforced Soil (GRS) bridge abutments since last fall, and the sixth will be […]

Basalt-fiber reinforced polymer or BFRP rebar used on a bridge in Northern Ireland

Basalt Rock-fiber Rebar Gets First Big Test

October 5, 2010 rockman Comments Off

Basalt fiber reinforced polymer (BFRP) rebar has been installed in a bridge deck in Northern Ireland. It has twice the tensile strength of regular steel, and weighs approximately 75% less. According to the ENR article, […]

Directional Drilling - an option for environmental remediation

Directional Drilling for Environmental Remediation

October 4, 2010 rockman 1

Vertical environmental wells for monitoring or remediation of contaminated sites are fairly well known. But over the last 20-years or so, the technology for directional drilling for environmental remediation has existed but has been largely […]

Continuous-flight Auger Piles

September 27, 2010 rockman Comments Off

National Driller Magazine has a nice overview article of Continuous-Flight Auger Piles that was featured in their Foundation Drilling Newsletter. It’s a decent overview for those unfamiliar with CFA Piles. This type of deep foundation […]

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