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- W59639455 abstract "Roller Compacted Concrete (RCC) is a no-slump concrete mixture that is transported, placed, and compacted with the same construction equipment as asphalt pavement. RCCs were used to construct three sections of pavement in Weld County Road 28 (WCR 28), eastbound of State Highway (EB 66), and westbound of State Highway (WB 66). Three sets of field inspections were conducted: 1) during construction; 2) nine months after construction; and 3) two years after construction. Strength and durability behaviors of the RCCs were tested right after construction, and some of the material properties of the RCCs were further tested nine months after construction. Field inspections showed that the diamond ground surface texture of EB 66 and WB 66 is better and smoother than the surface of WCR 28 where large cracks and chipping occurred along both longitudinal and transverse directions. The relatively poor quality of RCC samples at WCR 28C location may be due to the different quality of concrete mix, the degree of compaction used during construction, and the absence of saw cut joints. The concrete specimens were tested for rapid chloride permeability, drying shrinkage, freeze-thaw resistance, compressive strength, splitting tensile strength, and flexural strength. The test results obtained after the construction indicated that the chloride permeabilities are in the low to very low ranges, the drying shrinkages are in the normal range, and freeze-thaw resistance is fine. The compressive strength, splitting tensile strength, and flexural strength are also in the normal range similar to that of conventional concrete. The test results obtained nine months after the construction indicated that deteriorations occurred in the RCC concretes. After only nine months of service, the RCCs already showed noticeable changes in all of the selected properties tested. More tests and field inspections should be conducted in the future after a longer monitoring period to verify and validate the initial findings observed in the material properties and surface conditions of the RCC pavements." @default.
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- W59639455 date "2012-10-01" @default.
- W59639455 modified "2023-09-23" @default.
- W59639455 title "Application of Roller Compacted Concrete in Colorado's Roadways" @default.
- W59639455 hasPublicationYear "2012" @default.
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