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$110M lignin line stands to stabilize supply of key water reducer ingredient

Sources: Rayonier Advanced Materials, Jacksonville, Fla.; Borregaard ASA, Sarpsborg, Norway; CP staff

Rayonier and Borregaard have effected a letter of intent to develop a 150,000 metric ton capacity production line for lignin, a cellulose-derived raw material where global supply and demand imbalance invites price spikes of products including concrete admixtures. The 45/55 joint venture will be based at the Fernandina Beach, Fla., cellulose fiber processing plant of minority partner Rayonier.

Read more: $110M lignin line stands to stabilize supply of key water reducer ingredient

North Star adds Superior Concrete Block business

Source: North Star Stone & Masonry, Mendota Heights, Minn.

Already a key source of clay brick, concrete block and retaining wall units, natural stone veneers and landscaping materials in southern Minnesota, North Star has extended its footprint by acquiring the Superior Concrete Block Co. plant in Mankato, Minn., southwest of the Twin Cities. The deal brings North Star additional landscaping unit capacity and Armorflex erosion control products, while Superior Concrete principals maintain their agricultural precast product business.

Read more: North Star adds Superior Concrete Block business

New ASTM standard covers galvanized rebar

Source: ASTM International, West Conshohocken, Pa.

ASTM A1094/A1094M, Specification for Continuous Hot-Dip Galvanized Steel Bars for Concrete Reinforcement, details corrosion protection for zinc- or zinc alloy-coated rebar. “Galvanizing is a proven and effective way to protect reinforcing bar from corrosion, as it provides both barrier and galvanic protection to the steel substrate, [and] increases the chloride threshold,” says GalvInfo Center Director Gary Dallin.

Read more: New ASTM standard covers galvanized rebar