MIT researchers model stronger cement on theory behind Corning Gorilla Glass
Published: Monday, 09 June 2014 16:19
Written by Concrete News
Sources: Concrete Sustainability Hub at Massachusetts Institute of Technology, Cambridge; Corning Inc., New York; CP staff
Borrowing from a ‘rigidity theory’ that has led Corning Inc. engineers to the high performance Gorilla Glass—its toughness in thin sections equal to smartphone and laptop computer screens—the Concrete Sustainability Hub is studying potential portland cement reformulation aimed at higher fracture resistance than current ASTM C 150 product.
Read more: MIT researchers model stronger cement on theory behind Corning Gorilla Glass
Operating Engineers take narrow election at Virginia precast plant
Published: Tuesday, 10 June 2014 12:05
Written by CP Staff
Sources: National Labor Relations Board; CP staff
The NRLB has certified International Union of Operating Engineers Local 77 in Suitland, Md., as collective-bargaining representative for equipment operators and mechanics at the Structural Concrete Products LLC plant in Manassas, Va. The Board adopted a regional director’s January 2014 decision on the prior month’s representation vote—four in favor, three opposed—among proposed bargaining unit employees. Woodbridge, Va.-based Structural Concrete had challenged the election, citing a Local 77 agent’s presence in a parked vehicle from which employees en route to casting ballots could be observed.