EFFECTS OF THE CLARY SCREED AND TUBE FLOAT ON RIGID PAVEMENT CONSTRUCTION

Effects of the Clary screed and the tube float, used as finishing devices on portland cement concrete pavement placed with a slipform paver, were examined on six construction projects. Alternate sections were finished with and without the Clary screed on three projects, and on three others with either none, two, four, or six tube float passes. Pavement roughness was measured with a California profilograph and surface mortar samples were tested for compressive strength. The screed, used without additional water, resulted in reduction of roughness and was not considered detrimental to the surface mortar. The tube float, normally used with a fog-spray of water, had little effect on roughness, and resulted in a substantial reduction in quality (compressive strength) of the surface mortar. Both devices helped close the pavement surface.

Media Info

  • Pagination: 24 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00093621
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: NYSDOT-ERD-75-RR-32 Final Rpt.
  • Contract Numbers: 25-5
  • Files: NTIS, TRIS, USDOT, STATEDOT
  • Created Date: Feb 4 1976 12:00AM