Document Archives

Project #238 – Shrinkage and Creep Properties of Concrete Made With Expanded Shale Aggregates

• ID:

  866

• ESCSI:

  4302.022

• Author:

  Chubbuck, Edwin R.

• Publication Name:

  "Final Report"

• Type of Publication:

• Publisher:

  Kansas State College

• Dated:

  1956

• Issue/Volume:

  July

• Other ID:

• Page(s):

  1

• Reference List:

  Y

• Abstract:

  An agreement between the Applied Mechanics Department of Kansas State College and the Expanded Shale Institute was made in 1954 whereby the Applied Mechanics Department would investigate the shrinkage and creep properties of concrete made with expanded shale aggregates. One of the chief reasons for this study was that shrinkage and creep are very important considerations with respect to prestressed concrete. Excessive strains result in serious loss of prestress. It is well recognized that lightweight concretes do exhibit large shrinkage and creep. In this project the main objective was to determine some figures for these strains for use in prestress design. Even for conventional concrete (non-prestressed) use, a knowledge of expected shrinkage and creep is very helpful in the design of structures.