DESIGN PROVISIONS FOR SHRINKAGE AND CREEP OF CONCRETE

This paper presents a simple procedure for calculating the shrinkage and creep of concrete using the information available at design; namely the 28 day specified concrete strength, the concrete strength at end of curing or loading, element size and the relative humidity. The method includes strength development with age, relationship between modulus of elasticity and strength, and equations for predicting shrinkage and creep. The only arbitrary information are the factors appropriate to the cementitious material, which can be improved from measured strength age data. At the most basic level the method requires only the information available to the design engineer. The prediction values can be improved by simply measuring concrete strength development with time and modulus of elasticity. Aggregate stiffness can be taken into account by back calculating a concrete pseudo strength from the modulud of elasticity.

• Corporate Authors:

  American Concrete Institute (ACI)

  38800 Country Club Drive
  Farmington Hills, MI  United States  48331
• Authors:
  • Gardner, N J
• Conference:
  • Adam Neville Symposium: Creep and Shrinkage - Structural Design Effects
  • Location: Atlanta, Georgia
  • Date: 1997-11-0 to 1997-11-0
• Publication Date: 2000

Language

• English

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: p. 101-133

Subject/Index Terms

• TRT Terms: Concrete; Creep; Design; Modulus of elasticity; Shrinkage; Strength of materials
• Subject Areas: Design; Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 00800938
• Record Type: Publication
• Files: TRIS
• Created Date: Oct 22 2000 12:00AM