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Meticulous sand & gravel stockpiles spell high performance concrete for California

Sources: Polaris Materials Corp., Vancouver, B.C.

Polaris Minerals has inaugurated its Port of Long Beach terminal, south of Los Angeles, unloading 77,000 tons of aggregate using a computerized conveying and stacking system designed to maintain fine and coarse grades’ integrity when stockpiled in large quantities. The materials were dispatched from the Orca Quarry, a Vancouver Island deposit Polaris is developing with an eye to construction prospects in the Los Angeles Basin, San Francisco Bay area and other port-served Pacific Coast markets.

Read more: Meticulous sand & gravel stockpiles spell high performance concrete for California

Utility, energy projects spike construction start figures for first half of 2015

Source: Dodge Data & Analytics, New York

Total construction starts on an unadjusted basis reached $336 billion during the first six months of this year, up 23 percent from the same period in 2014, Dodge Data & Analytics reports. Excluding electric utility and gas plant category activity, figures for the first half of 2015 would be up a more moderate 11 percent from the same period a year ago.

Read more: Utility, energy projects spike construction start figures for first half of 2015

Lawmakers move to strengthen EPA position on fly ash designation

Sources: Portland Cement Association, Skokie, Ill.; CP staff

The U.S. House of Representatives has passed “Improving Coal Combustion Residuals Regulation Act of 2015,” (H.R. 1734) in a bipartisan 258-166 vote. Sponsored by Rep. David McKinley, (R-WV), it codifies the Environmental Protection Agency’s recent decision to regulate fly ash and other coal combustion residuals (CCR) under Resource Conservation and Recovery Act (RCRA) ‘solid’ versus ‘hazardous’ waste provisions.

Read more: Lawmakers move to strengthen EPA position on fly ash designation

Essroc triples slag cement capacity, assimilating strategic Holcim (US) mill

Sources: CP staff; Essroc Italcementi Group, Nazareth, Pa.

Essroc Cement has integrated a 500,000 metric ton/year capacity, Camden, N.J., slag cement grinding operation into its Northeast and Mid-Atlantic powder network. It closed on the former St. Lawrence Cement and Holcim (US) Inc. mill, located along the Delaware River directly across from Philadelphia, in a deal with the newly formed LafargeHolcim Ltd.

Read more: Essroc triples slag cement capacity, assimilating strategic Holcim (US) mill

Construction life cycle assessment pioneer retools Pavement software

Sources: Athena Sustainable Materials Institute, Ottawa; CP staff

The developer of a life cycle assessment (LCA) tool informing ready mixed and manufactured-concrete interests’ product category rules (PCR) and environmental product declarations (EPD) has released Pavement LCA Version 2.1, succeeding the Impact Estimator for Highways software. Athena Institute envisioned the charter program for major freeway and arterial roadway assessment, but notes the tool can now gauge the environmental footprint of any roadway cross-section along its length and over its service life.

Read more: Construction life cycle assessment pioneer retools Pavement software