In today’s market, it is imperative to be knowledgeable and have an edge over the competition. ACI members have it…they are engaged, informed, and stay up to date by taking advantage of benefits that ACI membership provides them.
Read more about membership
Become an ACI Member
Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
American Concrete Institute
38800 Country Club Dr.
Farmington Hills, MI
Chat with Us Online Now
Feedback via Email
Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Flowable Backfill for Pipeline Bedding at the Denver International Airport
Author(s): D. A. Clem, K. D. Hansen, and J. B. Kowalsky
Publication: Special Publication
Appears on pages(s): 87-96
Keywords: backfilling; bedding; mix proportioning; pipes (tubes); quality control; slurries; soil cement; tests; Construction
Abstract:The new Denver International Airport (DIA) has used the world's greatest volume of flowable backfill, estimated at 450,000 yd 3. For one of the initial projects, more than 70,000 yd 3 of flowable backfill were utilized as a bedding material for a concrete pipe drainage system located beneath the taxiways at DIA. The project is unique due to the large volume of flowable backfill required for a single contract, use of on-site sand, and the efficiency of the mixing and placing operation. Paper presents a case study of the project, including mix designs, cost, mixing operation, placing, quality control, and properties of the in-place material.
Click here to become an online Journal subscriber