The Job
This South Carolina pipe abandonment work by CJGeo was part of Columbia's Lower Kinley Creek project. After installation of a new sewer line, the contractor had to fill 8,350 linear feet of 30" sewer main. Without waste, this is 1,185 cubic yards of flowable fill or other suitable material.
Generating and placing the CJFill-UL cellular grout.
The Challenge
Given the long runs of pipe and high volume, the customer wanted to manage cost & minimize the number of access points. Logistically, traditional flowable fill would have been very difficult given the need to get nearly 150 loads of ready mix flowable fill to fill the pipe.
The Solution
Tight quarters grouting.
CJGeo proposed 25lb/cuft CJFill-Ultra Lightweight cellular grout to the general contractor. The relatively few placement points required, along with the cost, were both very attractive alternatives to flowable fill.
CJGeo mobilized a single dry batch cellular grout plant. Over a period of four days onsite, CJGeo generated and pumped nearly 1200 cubic yards of cellular grout. Confirmation of fill for each run was uniform grout venting from the opposite end of placement.
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