Source: National Precast Concrete Association, Carmel, Ind. The premier manual on North American precast pavement design, specification, fabrication and installation, posted here, will be open for National Precast Concrete Association member comment and editorial suggestions through December 9. NPCA staff and Transportation and Infrastructure Products Committee members will review comments and suggestions for potential inclusion in the Manual for Jointed Precast Concrete…
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Rockway Precast, Marks Metal provide water bottle solution
When Clackamas, Ore.-based Marks Metal Technology received an inquiry about a form that would mold a giant concrete water bottle, Steve Tuttle of the company’s concrete division initially believed it was an impossible project. However, after some reflection he realized it was not only possible but would be more efficient to produce if it was created “as if it were a series of machined joint rings, stacked one on top of the other.”
Read MorePCI reinforces standards development with ANSI accreditation
Precast/Prestressed Concrete Institute has been accredited as an American National Standards Institute standards developer. A first for an organization in manufactured concrete, the accreditation positions PCI’s voluntary consensus documents relating to the design, detailing, fabrication, transportation, and erection of precast and precast/prestressed concrete to be registered as American National Standards.
Read MoreANSI accreditation reinforces PCI standards profile
Source: Precast/Prestressed Concrete Institute, Chicago
PCI has been accredited as an American National Standards Institute standards developer. A first for an organization in manufactured concrete, the accreditation positions PCI’s voluntary consensus documents relating to the design, detailing, fabrication, transportation, and erection of precast and precast/prestressed concrete to be registered as American National Standards.
Read MoreRheology modifier, anti-settling agent suits zero slump to SCC mixes
To 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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