Sources: Indiana Limestone Co., Bloomington; CP
A new study from a quarry operator whose signature product clads The Pentagon and Empire State Building examines distinctions between dimensioned limestone and cast stone fabricated from vibratory dry tamped or wet-cast methods.
Read MoreSources: HawkeyePedershaab Concrete Technologies, Inc., Mediapolis, Iowa; CP staff
Through acquisition of fellow Iowa operator New Hampton Metal Fabrication Corp., HawkeyePedershaab will expand its precast concrete equipment market presence, especially in formwork for wet-cast manholes, box culverts and pipe. The New Hampton brand will be maintained, while former principals Jamie and Nick Wegner lead HawkeyePedershaab’s wet-cast division.
Read MoreASTM International C15 Committee on Manufactured Masonry Units’ new standard, C1782/C1782M, Specification for Utility Segmental Concrete Paving Slabs, determines the minimum flexural strength, dimensional tolerances, and freeze-thaw durability requirements for 12- to 48-in. square products.
Read MoreSources: CalStar Products, Caledonia, Wis.; CP staff
CalStar Products has begun delivering building and landscape units from a 100,000-sq.-ft., Columbus, Miss., operation—an ambitious satellite to a Racine, Wis., flagship plant opened in 2010. With dry- and wet-cast lines for brick, trim and paver products using proprietary binders and high fly ash content, the facility sits on 23 acres in the Golden Triangle Industrial Park.
Read MoreTo meet demand for precast concrete with smooth surface, uniform matrix and high performance characteristics, Active Minerals Intl. has developed Acti-Gel 208, a mineral based additive suited to self-consolidating and zero slump mixes. As a low-dose rheology modifier and anti-settling agent, it provides aggregate suspension, stabilizes mixtures, and improves workability, flowability, and pumpability throughout fabrication of wet cast and dry cast products.
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