chapter 4 working with silica fume concrete n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Chapter 4. Working with Silica-Fume Concrete PowerPoint Presentation
Download Presentation
Chapter 4. Working with Silica-Fume Concrete

Loading in 2 Seconds...

play fullscreen
1 / 54

Chapter 4. Working with Silica-Fume Concrete - PowerPoint PPT Presentation


  • 336 Views
  • Uploaded on

Chapter 4. Working with Silica-Fume Concrete. Conducting a Test Placement Transporting, Placing, and Consolidating Finishing Flatwork Finishing Bridge Decks Preventing Plastic-Shrinkage Cracking Curing. Conducting a Test Placement. Chapter Outline.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Chapter 4. Working with Silica-Fume Concrete' - chiku


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
chapter 4 working with silica fume concrete
Chapter 4. Working with Silica-Fume Concrete
  • Conducting a Test Placement
  • Transporting, Placing, and Consolidating
  • Finishing Flatwork
  • Finishing Bridge Decks
  • Preventing Plastic-Shrinkage Cracking
  • Curing
slide3

Remember:Silica-fume concrete is more cohesive and less prone to segregationTo improve workability, increase slump by about 2 in. (50 mm)

one pass finishing
One-Pass Finishing
  • Screed
  • Float
  • Texture
  • Cure

Protect,

Protect,

Protect!

what is plastic shrinkage cracking
What is Plastic Shrinkage Cracking?

Cracking that occurs in the surface of fresh concrete soon after it is placed and while it is still plastic.

-- ACI 116R

slide48

“If silica-fume concrete mixtures are given 7 days of continuous moist curing, then there is no association between silica fume content and cracking.” -- Whiting and Detwiler NCHRP Report 410

slide49

“It is recommended that a minimum of 7 days continuous moist curing be specified.” -- Whiting and Detwiler NCHRP Report 410

end of chapter 4
End of Chapter 4

Main

Outline