QUICK REPAIR SYSTEM TRIED

PRECAST SLABS OF CONCRETE WILL BE USED THIS SPRING IN AN EXPERIMENT TO DECREASE HIGHWAY LANE SHUT-DOWN TIME IN THE REPAIR OF MORE THAN 20 PAVEMENT BLOW-UPS ON BUSY INTERSTATE 75 FREEWAY IN THE FLINT-BAY CITY AREA, THE STATE HIGHWAY COMMISSION HAS ANNOUNCED. DEVELOPED BY THE DEPARTMENT OF STATE HIGHWAYS' TESTING AND RESEARCH AND MAINTENANCE DIVISIONS, THE SLAB REPAIR METHOD WILL BE USED FOR THE FIRST TIME ON A MAJOR PROJECT DURING APRIL AND MAY. AS FAR AS CAN BE DETERMINED, MICHIGAN WILL BE THE FIRST STATE TO USE SUCH A REPAIR METHOD. THE FORMER METHOD OF REPAIR INVOLVED CUTTING AWAY THE DAMAGED CONCRETE, POURING NEW CEMENT AND LETTING IT CURE FOR SEVERAL DAYS BEFORE THE TRAFFIC LANE WAS RE-OPENED. THE NEW METHOD INVOLVES CUTTING OUT THE DAMAGED CONCRETE AND LOWERING A PRECAST SLAB OF HIGHWAY INTO THE CUT AND THEN SEALING THE JOINTS. THE ENTIRE PROCESS CAN BE COMPLETED IN TWO HOURS WITH THE TRAFFIC LANE REOPENED IMMEDIATELY. /MRC/

• Supplemental Notes:
  • Vol 68, No 14, P 4
• Publication Date: 1971-5

Media Info

• Serial:
  • Michigan Roads and Construction
  • Publisher: Baker Publishing Company

Subject/Index Terms

• TRT Terms: Concrete structures; Precast concrete; Repairing; Slabs
• Uncontrolled Terms: Repairs
• Subject Areas: Highways; Maintenance and Preservation;

Filing Info

• Accession Number: 00218781
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 25 1971 12:00AM