Materials ENR’s materials section covers advancements in construction and building materials, such as concrete, asphalt, steel and wood.//www.pjbjkak.com/rss/500 en-us San Francisco Weighs Reduced Scope as Millennium Tower Fix Resumes postn@enr.com (Nadine M. Post)

Using a modified method, Shimmick’s Legacy Foundations restarted work on the troubled perimeter pile upgrade of the ailing Millennium Tower in San Francisco.

//www.pjbjkak.com/articles/53424 Thu, 13 Jan 2022 14:45:00 -0500//www.pjbjkak.com/articles/53424-san-francisco-weighs-reduced-scope-as-millennium-tower-fix-resumes Millennium Tower San Francisco The contractor proved the efficacy of its revised method for installing an outer pile casing (left) and a pile (right) after the original method accelerated the rate of settlement of the 645-ft-tall Millennium Tower. Photo courtesy of Ronald O. Hamburger
New Tool Helps Industry Pros Find Lower Impact Materials

“Building Material Selection and Use: An Environmental Guide” (BMEG) includes a database of 50 building materials and their properties.

//www.pjbjkak.com/articles/53315 Thu, 06 Jan 2022 15:00:00 -0500//www.pjbjkak.com/articles/53315-northwestern-university-construction-material-environment
New York Governor Signs Low-Embodied-Carbon Concrete Bill

Parts of the bill that drew industry opposition were nixed before it was passed.

//www.pjbjkak.com/articles/53355 Tue, 04 Jan 2022 15:00:00 -0500//www.pjbjkak.com/articles/53355-new-york-governor-signs-low-embodied-carbon-concrete-bill
Biden Finalizes EU Steel Imports Deal With Direction to Rework Exclusions

President Joe Biden has issued a proclamation on adjusting imports of steel into the U.S.

//www.pjbjkak.com/articles/53345 Tue, 28 Dec 2021 15:00:00 -0500//www.pjbjkak.com/articles/53345-biden-finalizes-eu-steel-imports-deal-with-direction-to-rework-exclusions
Amazon HQ2 Puts Concrete on an Embodied Carbon Diet postn@enr.com (Nadine M. Post)

Amazon’s 2.1-million-sq-ft Metropolitan Park office development near the nation’s capital could become a model for other large-scale sustainable projects. The building team is tracking a 15% reduction in embodied carbon in the project's 200,000 cu yd of concrete and the two 22-story buildings are on course to qualify as net-zero operational carbon.

//www.pjbjkak.com/articles/53329 Wed, 22 Dec 2021 13:00:00 -0500//www.pjbjkak.com/articles/53329-amazon-hq2-puts-concrete-on-an-embodied-carbon-diet Amazon HQ2 HQ2, in the National Landing Business Improvement District, is near the nation’s capital. Photo by Sisson Studios courtesy of Clark Construction
2021 4Q Cost Report: Tariffs Doubled on Canadian Lumber Products yodersj@enr.com (Jeff Yoders)

The U.S. Commerce Dept. on Nov. 24 followed through with expected anti-dumping and countervailing duties on Canadian softwood lumber, placing tariffs of 17.99% on their imports—more than twice the 8.99% rate imposed during the Trump administration.

//www.pjbjkak.com/articles/53326 Wed, 22 Dec 2021 12:00:00 -0500//www.pjbjkak.com/articles/53326-2021-4q-cost-report-tariffs-doubled-on-canadian-lumber-products lumber Even as mills ramp up production to meet wood demand, contractors are still having a difficult time sourcing the material. Image: Marc Clery/Delaware State News Via AP
California Plant Would Convert Wood Waste Into Hydrogen Fuel

Developer plans to establish a $100-million plant outside Bakersfield for its first-of-its-kind project, working with Fluor Corp. and gasification systems maker SunGas Renewables Inc. //www.pjbjkak.com/articles/53219 Wed, 15 Dec 2021 06:00:00 -0500//www.pjbjkak.com/articles/53219-california-plant-would-convert-wood-waste-into-hydrogen-fuel Smarter Windows Will Enable Arena to Let in the Light < p > Sacr n竞技场正在建设ed Heart University’s campus in Fairfield, Conn., set to house its hockey and figure skating programs will have a design feature not typically associated with indoor ice rinks: windows.

//www.pjbjkak.com/articles/53203 Thu, 09 Dec 2021 15:15:00 -0500//www.pjbjkak.com/articles/53203-smarter-windows-will-enable-arena-to-let-in-the-light View-Smart-Window-Image_ENRready.jpg The dynamic glass windows adjust their tint automatically to light and weather conditions using artificial intelligence and a predictive algorithm.Image courtesy of View
US Doubles Tariffs on Canadian Softwood Lumber and Contractors Expect Higher Prices yodersj@enr.com (Jeff Yoders)

Pleas from Canada and from U.S. contractors fail to dissuade the Biden administration.

//www.pjbjkak.com/articles/53119 Tue, 30 Nov 2021 21:50:00 -0500//www.pjbjkak.com/articles/53119-us-doubles-tariffs-on-canadian-softwood-lumber-contractors-expect-higher-prices
AISC Sets Sights on Slashing Delivery Time for Steel Structures postn@enr.com (Nadine M. Post)

SpeedCore leads the way in the American Institute of Steel Construction's Need for Speed campaign, which also includes SpeedFloor, SpeedConnection and speedier simple bridges.

//www.pjbjkak.com/articles/52986 Fri, 12 Nov 2021 17:14:00 -0500//www.pjbjkak.com/articles/52986-aisc-sets-sights-on-slashing-construction-time-for-steel-structures
US, European Union Reach Deal to Replace Trump-Era Steel Tariffs

A new tariff-rate quota arrangement will only impose duties on steel and aluminum imports from the EU beyond amounts based on demand.

//www.pjbjkak.com/articles/52862 Mon, 01 Nov 2021 16:13:00 -0400//www.pjbjkak.com/articles/52862-us-european-union-reach-deal-to-replace-trump-era-steel-tariffs
Researchers Hope Plastic Additive Adds Life to Asphalt

Researchers in Missouri are deploying an additive derived from plastic straws, bags and bottles into a test road in hopes of increasing asphalt pavement life and environmental benefits. 

//www.pjbjkak.com/articles/52808 Thu, 28 Oct 2021 09:15:00 -0400//www.pjbjkak.com/articles/52808-researchers-hope-plastic-additive-adds-life-to-asphalt plastic and asphalt Photo courtesy of University of Missouri
Major Colorado Solar Project Will Power EVRAZ Steel Mill

Lightsource BP's 750,000-panel, 300-MW Bighorn Solar project will be fully online in November as a clean fuel source for the expanded plant.

//www.pjbjkak.com/articles/52765 Fri, 22 Oct 2021 14:53:00 -0400//www.pjbjkak.com/articles/52765-major-colorado-solar-project-will-power-evraz-steel-mill
New California Law Will Set Cement Sector Strategy to Cut GHG Emissions

The California Air Resource Board will have 18 months to develop a strategy for the state's cement sector to reach net-zero greenhouse emissions by 2045.


//www.pjbjkak.com/articles/52613 Sun, 10 Oct 2021 17:00:00 -0400//www.pjbjkak.com/articles/52613-new-california-law-will-set-cement-sector-strategy-to-cut-ghg-emissions
Nucor Launches Line of Greener Steel Products postn@enr.com (Nadine M. Post)

The steelmaker's line of products for construction are more sustainable because they will be made with renewable energy.  

//www.pjbjkak.com/articles/52598 Wed, 06 Oct 2021 16:07:00 -0400//www.pjbjkak.com/articles/52598-nucor-launches-line-of-greener-steel-products
Reflective Coatings Deployed to Cool the Built Environment

In an effort to combat heat gain in urban areas and mitigate the effects of climate change, researchers in Arizona are evaluating reflective coatings for roadways.

//www.pjbjkak.com/articles/52547 Thu, 30 Sep 2021 12:27:03 -0400//www.pjbjkak.com/articles/52547-reflective-coatings-deployed-to-cool-the-built-environment neighborhood streets The City of Phoenix Street Transportation Dept. applied a light-colored, reflective coating to roads in eight neighborhoods across the city to study its cooling effects.Photo courtesy of the City of Phoenix
2021年第三季度成本报告:没有尽头的pply Chain Chaos and Materials Challenges yodersj@enr.com (Jeff Yoders)

A record 62 cargo ships wait to dock at the ports of Los Angeles and Long Beach as of Sept. 27, stuck floating off the California coast amid a supply chain crunch impacting contractor bottom lines for more than a year.

//www.pjbjkak.com/articles/52544 Thu, 30 Sep 2021 11:47:00 -0400//www.pjbjkak.com/articles/52544-2021-3q-cost-report-no-end-in-sight-to-year-of-supply-chain-chaos-and-construction-logistics-material-challenges 3QCR_MATERIALS_web_900x550.jpg
Emissions Related to Concrete May Halve by 2050 Even With More Use, Says Study

An analysis has projected the potential for reduced greenhouse gas emissions from cleaner concrete production even with increased use of the material. 

//www.pjbjkak.com/articles/52445 Mon, 20 Sep 2021 16:30:00 -0400https://www.新利luckenr.com/articles/52445-emissions-related-to-concrete-may-halve-by-2050-even-with-more-use-says-study
Construction Industry Considers Its Role in Avoiding PFAS As federal legislation again makes its way to the Senate, architects, designers and engineers discuss what they can do to prevent using harmful chemicals in building materials. //www.pjbjkak.com/articles/52233 Wed, 11 Aug 2021 17:50:00 -0400//www.pjbjkak.com/articles/52233-construction-industry-considers-its-role-in-avoiding-pfas Corps of Engineers, LaFargeHolcim Launch $3.4M Materials Reuse Study choa@enr.com (Aileen Cho)

Effort will explore recycling soils and fines back into cement binders for new concrete.

//www.pjbjkak.com/articles/52217 Thu, 05 Aug 2021 17:01:00 -0400//www.pjbjkak.com/articles/52217-corps-of-engineers-lafargeholcim-launch-34m-materials-reuse-study
Council on Tall Buildings Kicks Off Study of Steel-and-Timber Towers postn@enr.com (Nadine M. Post) CTBUH expects to provide guidelines on building tall using both structural steel and mass timber. //www.pjbjkak.com/articles/52102 Thu, 15 Jul 2021 15:59:00 -0400//www.pjbjkak.com/articles/52102-council-on-tall-buildings-kicks-off-study-of-steel-and-timber-towers 2021 2Q Cost Report: Supply Issues Persist Even as Lumber, Other Prices Stabilize yodersj@enr.com (Jeff Yoders) While price increases in softwood lumber have pushed new home costs higher due to homebuilders’ extensive use of the material, estimators for all other building types have felt the pinch as well. //www.pjbjkak.com/articles/52031 Thu, 01 Jul 2021 09:51:00 -0400//www.pjbjkak.com/articles/52031-2021-2q-cost-report-supply-issues-persist-even-as-lumber-other-prices-stabilize lumber yard Even as mills ramp up production to meet wood demand, contractors are still having a difficult time sourcing the material for concrete framing, roofing and several other non-residential construction uses.Photo courtesy of Getty Images House Made of 3D-Printed Concrete Goes Up in Arizona rubenstonej@enr.com (Jeff Rubenstone) Using a gantry-mounted printer and a specialized concrete admixture, the project is the first to use the PERI 3D printing system in the U.S. //www.pjbjkak.com/articles/51972 Wed, 23 Jun 2021 10:04:00 -0400//www.pjbjkak.com/articles/51972-house-made-of-3d-printed-concrete-goes-up-in-arizona home built using gantry-mounted 3D printer The Tempe home’s walls were built on site using PERI’s gantry-mounted 3D printer. Photo courtesy of PERI 3D-printed walls of the home The 3D-printed walls of the home are capable of holding static and dynamic loads. Photo courtesy of PERI Katerra Files for Bankruptcy, Seeks to Reorganize US Operations rubenstonej@enr.com (Jeff Rubenstone)

The company cites project losses among the causes of its financial trouble. 

//www.pjbjkak.com/articles/51869 Mon, 07 Jun 2021 19:35:00 -0400//www.pjbjkak.com/articles/51869-katerra-files-for-bankruptcy-seeks-to-reorganize-us-operations CatalystKaterraMassTimber.jpg Katerra was an advocate of building technologies such as mass timber construction, seen here on its Catalyst project in Spokane Wash., which was completed in 2020. Photo Courtesy of Katerra
Steel Diaphragm Innovation Initiative Improves Seismic Design Tools postn@enr.com (Nadine M. Post)

Unprecedented collaborative research on the seismic performance of steel floor and roof diaphragms has improved design methods and relevant standards used throughout the U.S. for steel structures.

//www.pjbjkak.com/articles/51867 Mon, 07 Jun 2021 16:14:00 -0400//www.pjbjkak.com/articles/51867-steel-diaphragm-innovation-initiative-improves-seismic-design-tools-standards
As Katerra Reportedly Shuts Down, Scramble Ensues Among Team Members, Clients rubenstonej@enr.com (Jeff Rubenstone)

The vertically integrated construction startup that sought to bring the myriad aspects of design, manufacturing and construction under one roof, is set to stop operations, according to media reports.

//www.pjbjkak.com/articles/51850 Wed, 02 Jun 2021 20:25:00 -0400//www.pjbjkak.com/articles/51850-as-katerra-reportedly-shuts-down-scramble-ensues-among-team-members-clients KaterraCatalyst.jpg The Catalyst Building in Spokane, Wash., was one green building project that Katerra and its subsidiary company Michael Green Architecture worked on. Many Katerra-related projects still underway are now in limbo. Photo Courtesy of Katerra
ArcelorMittal Has World's First 'Green' Steel Voucher Program yodersj@enr.com (Jeff Yoders)

ArcelorMittal, the world’s largest steelmaker, recently introduced a program to offer certificates to customers that certify they have reduced their carbon footprint through the steelmaker’s own greenhouse-gas emission reductions.

//www.pjbjkak.com/articles/51551 Wed, 07 Apr 2021 13:25:00 -0400//www.pjbjkak.com/articles/51551-arcelormittal-has-worlds-first-green-steel-voucher-program Carbalyst Project Once completed, the Carbalyst project at ArcelorMittal's Ghent, Belgium, mill will capture 15% of available waste gases made during the process of steel creation and convert those into 80 million liters of ethanol annually. It's expected to be online by the end of 2020. Photo of ArcelorMittal Ghent courtesy of ArcelorMittal
Philadelphia Airport Job Uses Lightweight Glass Aggregate choa@enr.com (Aileen Cho)

Airfield pavement project is believed to be the largest aggregate application of its kind in North America.

//www.pjbjkak.com/articles/51546 Wed, 07 Apr 2021 11:08:00 -0400//www.pjbjkak.com/articles/51546-philadelphia-airport-job-uses-lightweight-glass-aggregate
What's Behind The Materials Price Spikes? yodersj@enr.com (Jeff Yoders)

Industry groups are lobbying for an end to tariffs, but without shipping certainty, it may not be enough.

//www.pjbjkak.com/articles/51477 Wed, 24 Mar 2021 10:18:00 -0400//www.pjbjkak.com/articles/51477-whats-behind-the-materials-price-spikes
At ENR BuildTech Conference, Fresh Lessons From a Long Year rubenstonej@enr.com (Jeff Rubenstone) < p >严厉的教训和充满希望的发展top line ideas at the BuildTech virtual conference, ENR’s annual look at the state of construction technology and management.

//www.pjbjkak.com/articles/51412 Mon, 15 Mar 2021 18:35:00 -0400//www.pjbjkak.com/articles/51412-at-enr-buildtech-conference-fresh-lessons-from-a-long-year ENR0315Buildtech0.png 3D-printed concrete was one of the emerging technologies explored in depth at ENR BuildTech 2021. Image Courtesy of ICON ENR0315BuildTech1.png A keynote from Katie Haydon Perry of Haydon Building Corp. explored her company's cultural transformation over the last few years, even through the difficulties of the COVID-19 era.