下船
发表于 2025-3-23 12:57:58
Alireza Behrooz,Alisa Devlicsal effects of tamping on railway track geometry. The tamping was conducted during the regular autumn tamping campaign in 2022 on track section 118 of the Swedish Iron ore line “Malmbanan”. The experimental setup provided frequent measurements of track geometry closely before and after the tamping a
单独
发表于 2025-3-23 17:04:21
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藐视
发表于 2025-3-23 19:43:35
Kevin Wiesner,Michael Dürr,Markus Duchonxtend the service life of bridge decks by providing improved adhesion and reduced permeability. In the 1980s, polymer concrete overlays made with polyester styrene, epoxy, and methacrylate binders became accepted deck protection systems for bridges and parking structures. The rapid cure allowed DOTs
Narrative
发表于 2025-3-24 01:26:01
Ahmed M. Elmisery,Dmitri Botvichbit lower elastic moduli and higher viscous and plastic deformations in comparison to unmodified systems. The macroscopic properties are governed by microstructural changes in the binder matrix, which consists of both cementitious and polymer components. Herein, different pure polymer specimens and
纪念
发表于 2025-3-24 04:06:53
Geir M. Køienone of the most widely used fillers in PC. Silica sand is the primary raw material and its replacement by some progressive secondary raw materials could be appropriate if PC shows the same or better physical and mechanical properties. In this paper, the possibility of using secondary raw materials s
Flat-Feet
发表于 2025-3-24 08:24:14
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Minatory
发表于 2025-3-24 14:26:14
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heartburn
发表于 2025-3-24 16:02:40
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议程
发表于 2025-3-24 22:58:39
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排出
发表于 2025-3-25 00:31:35
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