sportsnut44
Civil/Environmental
- Nov 20, 2008
- 20
I am abandoning about a half mile of existing 4" diameter steel waterline, and the pipe needs to be filled with some sort of non-shrink grout or similar. Since the pipe is only 4" in diameter, I have a few questions:
• What type of material should be specified for the flowable fill, i.e. cellular concrete, polymer-modified grout,...?? Or will a standard cement slurry mixture work that is typically used for larger pipe abandoning?
• How many feet of pipe can be filled at a time with a single point of entry and vent at the other end? Should it be limited to say 500 ft at a time, less, more,...?
• What is the approximately cost of this?
• Line has shallow cover with significant surface loading. Is this a concern for certain products used to fill the pipe?
Thank you and I look forward to hearing back as soon as possible.
• What type of material should be specified for the flowable fill, i.e. cellular concrete, polymer-modified grout,...?? Or will a standard cement slurry mixture work that is typically used for larger pipe abandoning?
• How many feet of pipe can be filled at a time with a single point of entry and vent at the other end? Should it be limited to say 500 ft at a time, less, more,...?
• What is the approximately cost of this?
• Line has shallow cover with significant surface loading. Is this a concern for certain products used to fill the pipe?
Thank you and I look forward to hearing back as soon as possible.