Admixtures
ASTM Blended-Scm Standard Spans Ternary Concrete Mixes
ASTM C1697-10 Standard Specification for Blended Supplementary Cementitious Materials covers product containing two or three ASTM-compliant SCM and used...
J&S Concrete delivers first slab carrying new fiber spec
A 200-yd. order ready-mixed producer J&S Concrete dispatched to a warehouse site marks the North American debut of Raditeck AC 60 fiber. Ft. Mill, S.C.,...
CIM students escape classroom for summer internship at Alcatraz Island
California State University, Chico, Concrete Industry Management Program students volunteered for a 10-week summer Field School to evaluate, preserve...
EPA removes online fly ash reference, averts rule-making embarrassment
The Environmental Protection Agency has withdrawn from the epa.gov web site a section for its Coal Combustion Products Parternship (C2P2), citing re-evaluation...
MIT emerges as catalyst for low-carbon cement
Rich limestone deposits helped the Lehigh Valley become a focal point of portland cement 100 years ago; scientific prestige, venture capital and climate...
Iceland engineers confirm volcanic ash’s binding, AAR-quelling properties
The International Centre of Research and Applied Technology for Alkali Aggregate Reactions has confirmed AAR-mitigating potential in ash from April’s Eyjafjallajökull volcano eruption, crediting the material’s particle fineness and approximately 60 percent silicon dioxide content...
EPA proposes sweeping rule for nonconstruction-grade coal ash
Environmental Protection Agency officials are set to open a 90-day public comment period for proposed rules that address disposal and management of coal-fired...
Granular Pigments join Solomon ColorFlo Line
Springfield, Ill.-based Solomon Colors, Inc. has added spray-dried, free-flowing Granular Pigments to its ColorFlo products for concrete block and pavers....
A.L. Patterson Acquires Nycon
Fairless Hills, Pa., precast concrete accessories manufacturer and distributor A.L. Patterson Inc. has closed on New Nycon Inc., rebranding the business...
Northeast Solite molds pre-insulated, lightweight SolarStud Block
Lightweight-aggregate producer Northeast Solite is licensing production of a concrete masonry unit whose exterior and interior designs offer energy efficiency and labor-saving attributes...
EPA proposes sweeping rule for nonconstruction-grade coal ash
EPA officials are set to open a 90-day public comment period for proposed rules that address disposal and management of coal-fired power plants’ ash and residue, while exempting higher-grade, lower-carbon fly ash suited to concrete mix designs, cement mill feed, and wallboard production...
Pervious pervades
Waldorf, Md.-based Chaney Enterprises emphasizes that its Drain-Crete pervious concrete marks the company's latest iteration of a time-tested product...
Minnesota Road Paved with 1,800 Yd. of Pervious Mix
Mendota Heights, Minn.-based Cemstone Products Co. supplied pervious concrete for a new three-quarter-mile residential roadway in Shoreview, Minn., near...
Biopolymer Yields Pervious Concrete Admixture
Billed as the first agent of its kind for pervious concrete, V-Mar VSC500 is a liquid admixture with patented biopolymer, formulated to enhance paste...
Coal Top Gun Eyes Carbon-Capturing Rock, SCM Process
Coal market leader Peabody Energy has taken a $15 million equity interest in Calera Corp., whose research into carbon dioxide capture from power stations,...
Holcim debuts calQ online materials assessment calculator
Waltham, Mass.-based Holcim (US) Inc. launched last month its calQ application, an online materials-assessment tool designed to facilitate LEED Rating...
New acrylic fiber imparts crack control, alkali resistance, improved toughness
Raditeck AC 60, a concrete-grade acrylic fiber dosed at 0.66–1.0 lbs./yd., made a North American debut at the National Precast Concrete Association’s 2010 Precast Show in Phoenix...
CalStar Products dedicates first fly ash-based unit masonry line
Green building-driven CalStar Products Inc. capped an accelerated production ramp-up for its Fly Ash Brick and Fly Ash Pavers earlier this year in Caledonia,...
Sen. Feingold Salutes Green Jobs
Praising Wisconsin's leadership in green job creation, Sen. Russell Feingold told CalStar Products' Caledonia ribbon-cutting ceremony attendees, The development...
Fiorato heads Slag Cement Association
Portland Cement Association and CTLGroup veteran Anthony Fiorato was appointed SCA executive director, effective Feb. 1. His depth of knowledge about...
