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GP-4000 Two-Track Applications

This two-track GP-4000 is equipped with the world’s most accurate IDBI system. GOMACO’s patented IDBI dowel bar inserter provides ease and accuracy in dowel bar placement transversely across the slab. This machine is also equipped with a sidemounted air-powered bar inserter and will accommodate most types of bars. This project involved over 40 miles (64.4 km) of Interstate 25, north of Denver, Colorado. The two-track GP-4000 slipformed the concrete at 40.5 ft. (12.3 m) wide and 13 in. (330 mm) thick. The machine was equipped with GOMACO’s patented IDBI system for the placement of bars.

Read more about this project in GOMACO World 32.2.

A high-production feature on GOMACO slipform pavers is one-pass slipforming with integral curb on one or both sides of the slab. The two-track GP-4000 is slipforming this slab 31 feet (9.5 m) wide and five inches (127 mm) thick, with integral curb on both sides of the slab.
The intersection between the two major runways at the Sioux Falls Airport in Sioux Falls, South Dakota, was removed and replaced in just two weekends. Paving production with the GOMACO GP-4000 averaged 400 cubic yards (305.8 m3) per hour. A second batch plant had to be utilized to keep up with the paver’s production while slipforming 37.5 feet (11.4 m) wide. GOMACO’s two-track GP-4000 is paving passes 24 feet (7.3 m) wide and 15 inches (381 mm) thick on a new interstate in Arizona. The new roadway, at its widest point, will be 84 feet (25.6 m) with four lanes of traffic in each direction. The GP-4000 is equipped with the 5400 series mold and three different bar insertion systems, including a front-mounted center bar inserter, two rear-mounted side bar inserters, and the IDBI that inserts the dowel bars for the transverse joint. Along with the three bar insertion systems, the GP-4000 paver is also equipped with an Auto-Float® attachment and burlap drag. There are two paver-mounted GSI® (GOMACO Smoothness Indicator) units to measure the smoothness right behind the paver.
This two-track GP-4000 is slipforming a 24 in. (610 mm) thick slab at the Atlanta Hartsfield Airport in Atlanta, Georgia. The GP-4000 is also equipped with the exclusive operating system and 3D control system providing a stringless operation. This GP-4000 equipped with the IDBI is slipforming a highway in Longmont, Colorado. A 45 ft. (13.72 m) wide street is being slipformed by this GP-4000. Integral curb is also a part of this project.
The IDBI made its professional debut on this GP-4000 two-track paver in Las Vegas, Nevada. The IDBI operates within the front to back length of the GP-4000.  
For More Information
GP-4000 Slipform Paver Download The Whitetopping Brochure (PDF Format)
GP-4000 Photos:
Four-Track & Two-Track
Download The GOMACO Full Line
Brochure (PDF Format)
GP-4000 Slipform Paver Specifications Download the Step By Step - Hydraulic Side Bar Inserter (SBI) Brochure (PDF Format)
Download The GP-4000 Brochure
(PDF Format)
GP-4000 Information In:
Deutsch - Español - Francais - Italiano
GOMACO World Stories

GP-4000 with G+® Controls Goes to Work on the Denver International Airport - Villalobos Concrete

FSD: Closed for the Weekend - T&R Contracting Inc.

Two-Track IDBI Earns Ride on an Arizona Project - McNeil Brothers

THIS is a Paving Project– The I-15 CORE - Provo River Constructors

Around The World 39.2 - Baulderstone Hornibrook Pty Ltd

Short-Term Inconvenience Provides Long-Term Fix At New York's John F. Kennedy (JFK) International Airport - Tutor Perini Corporation

Country of Georgia Chooses Concrete For Silk Road Project - Ashtrom International Ltd.

Introducing A New Slipforming System To The Czech Republic - Skanska DS a.s.

Around The World 36.3 - Ashtrom International Limited

Bar Insertion Accuracy And Paving Production On A California Highway - Security Paving Company

Around The World 35.2 - CEMEX

Paving 100 Miles (161 km) Of Concrete Toll Road In Texas - Lone Star Infrastructure

Around The World 33.2 - Guangdong Changda

California Canal - Baldi Brothers

Working Out On The North Forty - Lawson Construction Company

Route 30 And The IDBI - Coffman Specialties, Inc.

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