Guidelines for Early-Opening-to-Traffic Portland Cement Concrete for Pavement Rehabilitation (2005) / Chapter Skim
Currently Skimming:
Pages 19-21
The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.
From page 19... ...
In comparison with 20- to 24-hour EOT concrete, 6- to 8-hour EOT concrete will have higher cement contents and lower w/c ratios. Type III cement, accelerators, and water reducers are more ofen used in 6- to 8-hour EOT concrete than in 20- to 24-hour EOT concrete.
|
From page 20... ...
Type E water-reducing and -accelerating admixtures were not effective in achieving early strength even when using a high cement content and a low w/c ratio. Scaling test results varied with respect to accelerator use, where in some cases calcium chloride improved the scaling resistance and in others made it worse.
|
From page 21... ...
These latter mixtures had the highest level of paste inhomogeneity, the highest volume of permeable voids, and a high degree of microcracking. Various water-reducing admixtures are available for use in EOT concrete, and it is impossible to categorize their interaction with other concrete constituents.
|
Key Terms
This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
More
information on Chapter Skim is available.