Characteristic of Airport Pavement Concrete with Low Flexural Tensile Modulus

Airport pavement concrete with high flexural tensile strength usually has a relatively high flexural tensile modulus. The influence of the pavement load stress and temperature stress induced by improved flexural tensile modulus is discussed according to existing specification. It is pointed out that under the unchangeable load, the load stress and temperature stress will increase greatly with the increase of the flexural tensile modulus, which results in the fracture of pavement slab. Therefore, the modulus should be controlled with the increase of the strength. Then based on the comparative experiments on flexural tensile strength and flexural tensile modulus of three kinds of airport pavement concrete (plain concrete, steel fiber reinforced concrete, steel fiber latex reinforced concrete), the method to reduce the flexural tensile modulus is studied. The result indicates that the modulus, the load stress and the temperature stress will be depressed by more than 20 percent respectively by adopting the steel fiber latex concrete, so as to decrease the stress of the pavement slab.

Language

  • English

Media Info

  • Media Type: Web
  • Pagination: pp 838-843
  • Monograph Title: International Conference on Transportation Engineering 2009

Subject/Index Terms

Filing Info

  • Accession Number: 01525219
  • Record Type: Publication
  • ISBN: 9780784410394
  • Files: TRIS, ASCE
  • Created Date: Nov 12 2013 1:36PM