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FLY ASH, LIMESTONE/CEMENT BLENDS BOOST COMPRESSIVE STRENGTHS

Research in Mississippi shows that portland cement/limestone blends (PLC) result in notable compressive strength improvements in mixtures with high Class C fly ash replacement versus conventional Type I portland cement, say Jay Shannon and Dr. Isaac L. Howard, P.E., Mississippi State University, and V. Tim Cost, P.E., F.ACI, and Wayne M. Wilson, P.E., Holcim (US) Inc., in their 2015 TRB paper, Benefits of Portland-Limestone Cement for Concrete with Rounded Gravel Aggregates and Higher Fly Ash Replacement Rates.

 

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INTERGROUND LIMESTONE/CEMENT BLENDS WILL WORK IN LOUISIANA

Interground limestone/cement blends are appropriate for all uses in the Pelican State, say Tyson D. Rupnow, Ph.D, P.E., and Patrick J. Icenogle, P.E., Louisiana Transportation Research Center, Baton Rouge, in their paper, Louisiana’s Laboratory Experience with Type IL Portland Cement.

Read more: INTERGROUND LIMESTONE/CEMENT BLENDS WILL WORK IN LOUISIANA

Glow in the Dark Concrete?

New Purdue University research says ‘yes’

 

Glow-in-the-dark concrete took the stage with new research in self-consolidating concrete, portland cement/limestone blends, and recycled concrete aggregates in ready mixed concrete, and it’s all illuminating the future of cast-in-place.

 

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RCC proves ‘A-OK’ for Rebuilding Rural Roads

By Tom Kuennen

Roller-compacted concrete (RCC), followed by diamond grinding to smooth the surface, is the smart choice for rebuilding rural roads damaged by energy development truck traffic in Arkansas, according to new research presented at the 93rd annual meeting of the Transportation Research Board earlier this year in Washington, D.C.

Read more: RCC proves ‘A-OK’ for Rebuilding Rural Roads

FRP Hybrids Make Encore Appearance at TRB 2014

PHOTOS: Aghahassani,  Elbadry and MoravvejAfter a strong showing in January 2013, glass and polymer fiber-reinforced polymer hybrid precast girders again dominated the technical presentations on precast technology and accelerated bridge construction at the 93rd annual meeting of the Transportation Research Board earlier this year in Washington, D.C.

Read more: FRP Hybrids Make Encore Appearance at TRB 2014