Tag: concrete: Page 5

Roadbuilding

NRMCA to hold Improving Concrete Quality course Jan. 17

The National Ready Mixed Concrete Association (NRMCA) is offering a new course, Improving Concrete Quality, on January 17 in Eagan, Minnesota. A book by the same name that was written by one of the instructors, as well as other NRMCA resources, will provide the basic content for the course, which will delve into quantifying tangible and intangible […]

January 9, 2018

Roadbuilding

Repaving of Golden State Freeway leads to lane closures

Work continues on a $171 million repaving project for Interstate 5/Golden State Freeway. The California Department of Transportation reports the work is scheduled to be completed in Summer 2019. Drivers have been facing temporary lane closures and temporary changes in traffic patterns for the work. But Caltrans says it is limiting most of those inconveniences […]

January 2, 2018

Roadbuilding

Concrete burned in Calif. fires being recycled as road base

A steady stream of dump trucks has been delivering loads of burned concrete to the Stony Point Rock Quarry west of Cotati, California, The Press Democrat reports. The concrete, which comes from the foundations and driveways of homes that were destroyed by the fires in Sonoma County, will be crushed and recycled to build new […]

December 19, 2017

Roadbuilding

Concrete Pavement Restoration: How to give CPR to roads

Concrete pavement restoration (CPR) is much like its shared acronym, in that it restores life to worn-out pavement. But CPR isn’t just one simple preservation process. It comprises a handful of techniques that must be applied to match certain conditions and during certain stages of pavement distress. Jerod Gross, project manager for Snyder and Associates […]

November 28, 2017

Roadbuilding

Sustainability measures key to long-lasting concrete pavements

Life-cycle analysis (LCA) is emerging as a leading method of determining the environmental impact at both a macro and micro level in transportation projects in context of sustainability. The concrete pavement industry in particular is pushing for the increased use of this approach. LCAs, which are broadly used in Europe and are included in “green” […]

November 28, 2017

Roadbuilding

Improvements planned for I-40 in N.C.

Repaving 16 miles of Interstate 40 is scheduled to occur this winter near Interstate 40’s intersection with I-95 in Johnston County, North Carolina. Penhall Co. of Los Angeles won the $10.2 million contract for the work, which also includes replacing the decks on 10 overpass bridges with more durable concrete, and sandblasting and painting four […]

November 7, 2017

Roadbuilding

MIT students create stronger concrete using plastic bottles

Undergraduate students at the Massachusetts Institute of Technology (MIT) discovered a way to use plastic water and soda bottles with fly ash to make concrete stronger and more flexible. According to a school press release, the researchers say that exposing plastic flakes to small doses of gamma radiation, pulverizing the flakes into a fine powder, […]

November 6, 2017

Roadbuilding

NRMCA hires Luke McHugh as senior director Northeast Region paving

The National Ready Mixed Concrete Association (NRMCA) announced the hiring of Luke McHugh as senior director, local paving, for the Northeast Region. In his new role, he will work with NRMCA partners and members to help deliver successful local concrete paving projects and implement strategies that increase the use of various forms of ready-mixed concrete […]

October 27, 2017

Roadbuilding

Understanding concrete on the atomic level may lead to a stronger product

MIT (Massachusetts Institute of Technology) researchers have discovered the beginnings of a new approach to producing concrete, which could lead to new ways to make concrete stronger and more sustainable with local materials as additives that will offset concrete’s greenhouse gas emissions, according to a release from the institute. Oral Buyukozturk, a professor of civil […]

October 6, 2017

Safety

3M offers online toolkit on upcoming silica regulations

With new federal rules on reducing crystalline silica dust on construction sites just one day away, 3M has launched a web page to help safety managers prepare their jobsites. The page offers tips on how to get ready for the regulations, including an infographic displaying the types of respiratory protection needed for each level of […]

September 22, 2017

Safety

If you’ve got a 5-gallon bucket, you’ve got dust control on Hilti DSH saws

Hilti’s new DSH-P water pump is designed to provide dust control for handheld saws on worksites devoid of a pressurized water source. The new product comes just days before federal crystalline silica dust-reduction rules are scheduled to take effect in the construction industry. The pump comes with a 10-foot hose to place in a water […]

September 21, 2017

Roadbuilding

Construction of unique Y-shaped bridge pier foundations tested by IDOT

Iowa Department of Transportation (IDOT) officials say the construction of Y-shaped pier foundations for the Interstate 74 span over the Mississippi River is a bit unique, which is why people gathered to watch construction workers pour 136,000 pounds of concrete into a “mock pier” built to test the procedures and materials that will be used […]

September 11, 2017