Two-layer concrete highway and runway paving with a Wirtgen SP154i Slipform Paver
Photo Credit To Wirtgen Group

Two-layer concrete highway and runway paving with a Wirtgen SP154i Slipform Paver

Two-layer concrete highway and runway paving with a Wirtgen SP154i Slipform Paver

Wirtgen has recently released the SP 154i, updating its family of large slipform pavers. The new paver is primarily used for two-layer concrete paving on highways and airport runways. The SP 154i is replacing Wirtgen’s successful SP 1500 model.

The SP 154i can be used as bottom layer or top layer paver, depending on the machine configuration.
The SP 154i can be used as bottom layer or top layer paver, depending on the machine configuration.

Flexibly Configurable Concrete Paving Train

With its powerful 436 hp Cummins engine (that meets the EU Stage V/US EPA Tier 4f exhaust emission standards), the SP 154i offers ample power reserves that enable it to pave concrete surfaces up to 16 m wide and 450 mm thick.

When paving concrete in two layers, three separate machines work together to form a paving train: a bottom layer concrete paver, a top layer concrete paver, and a TCM (texture curing machine). In this process, the SP 154i can be used as either a bottom layer or top layer concrete paver.

Thanks to Wirtgen’s comprehensive range of machines in various performance classes, it’s possible to create concrete paving trains tailored to specific job requirements.

Two-layer concrete paving is particularly cost-effective and precise when carried out using a Wirtgen paving train.
Two-layer concrete paving is particularly cost-effective and precise when carried out using a Wirtgen paving train.

SP 154i: Top Layer and Bottom Layer Concrete Paver

As a bottom layer paver, the slipform paver is equipped with an automatic dowel bar inserter, up to three automatic side tie-bar inserters, and a concrete conveyor to the top layer paver. The heavy-duty paving mould paves the concrete true to line and level while the paver moves forward. Electric vibrators compact the concrete. Then dowels and tie bars are precisely inserted into the bottom layer concrete. The result is a homogeneous, cost-effective concrete surface that forms the ideal base for the high-quality top layer concrete.

When using the SP 154i as a top layer paver, the top layer concrete is conveyed over and across the bottom layer paver via a belt conveyor and placed on the fresh bottom layer concrete in front of the top layer paver. The top layer concrete is paved “wet on wet” and compacted with T-vibrators specially designed for top layer concrete.

The slipform paver comes standard-equipped with an oscillating beam and super smoother to produce a level surface, while the hydraulically adjustable one-piece or two-piece side plates on both sides minimize concrete loss. Specially designed trailing forms and extended side plates additionally ensure that the slipform paver can produce perfect concrete corners.

Two-layer concrete highway and runway paving with a Wirtgen SP 154i Slipform Paver
Two-layer concrete highway and runway paving with a Wirtgen SP 154i Slipform Paver

Easy Transport and Short Setup Times

The SP 154i stands out for its outstanding manoeuvrability and traction, regardless of the surface conditions, thanks to its four steerable and slewing crawler units. Making the units independent of each other makes transport easy and results in minimal assembly/disassembly effort. The SP 154i features a high degree of automation, which makes concrete paving extremely cost-effective.

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Post source : Wirtgen Group

About The Author

Anthony has worked in the construction industry for many years and looks forward to bringing you news and stories on the highways industry from all over the world.

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  1. Pingback: Two-layer concrete highway and runway paving with a Wirtgen SP154i Slipform Paver – Emobility Info

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