交通研究2019: Reduce portland cement content by optimizing gradation

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Materials are the critical component of durable transportation infrastructure, and as such got strong coverage at the 99th annual Transportation Research Board meeting earlier this year in Washington, D.C. There, some 12,000 delegates audited presentations in over 800 sessions, which addressed many aspects of transportation design, construction and policy, and encompassed infrastructure built with cast-in-place concrete.

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交通研究2019: Nanotechnology boosts performance of cementitious grouts

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Precast concrete products were on the agenda of the 99th annual Transportation Research Board meeting in January in Washington, D.C. Over 12,000 delegates heard presentations in 800-plus sessions addressing multimodal transportation policy and construction practice, including materials and design involving precast/prestressed products.Concrete Productswas there and we present this report on new research in precast structures and methods. We will look at TRB 2019 research in cast-in-place concrete later this year. The 100th meeting of TRB will take place January 12-16, 2020. For more information, visitwww.trb.org.

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