Roads & Infrastructure May 2020

Page 34

ALL IN ONE

COMPACTION SINGLE DRUM VIBRATORY ROLLERS ARE AN ESSENTIAL PIECE OF EQUIPMENT FOR ROAD CONSTRUCTION. TUTT BRYANT ARE NOW OFFERING THE BOMAG BW 213 BCV5 ROLLER, CAPABLE OF VARYING VIBRATION LEVELS FOR AN ARRAY OF PROJECTS.

A

s single drum rollers prepare the soil for the application of asphalt, they play a crucial part in road construction projects. However, depending on the location for construction, the method to compact material changes due to vibration requirements. Towns and populated areas therefore often present increased risks for vibratory compaction compared to rural locations due to surrounding infrastructure. The fifth generation of BOMAG single drum rollers feature different weight classes, and vibration levels to suit a wide range of compaction requirements. As the primary distributor of BOMAG equipment in Australia, Tutt Bryant are releasing the BOMAG BW 213 BCV-5, which it believes will change the way equipment hirers choose rollers for projects. BOMAG National Business Development Manager, John Glossat says one significant feature of the new BOMAG BW 213 BCV-5 is its ability to adjust the amplitude manually or automatically depending on the job. This enables operators to achieve flexibility by using the machine in a variety of different compaction environments. “The vibration can be increased when working with typically tough soil to compact, or it can be reduced when working in residential areas where increased vibration may pose a risk to the surrounding utilities or buildings,” Mr. Glossat says. The BW 213 BVC-5 is a single drum roller suitable for compaction of a wide range of earthwork materials and helps operators to transit maximum energy on each application to ensure productivity. Mr. Glossat says in the equipment hire business the availability of the right piece of equipment at the right time is crucial. 34

ROADS MAY 2020

To ensure Tutt Bryant has a high standard of customer service, it prides itself in the availability of this equipment for its customers. “For the single drum rollers in the hire market in Australia, the models we have found to be most in demand are in the 13, 16 and 19-tonne weight class. These can be working on anything from roadbase construction to general bulk earthworks,” he says. There are three new BOMAG single drum vibratory rollers and when comparing the specifications between the three, Mr. Glossat says it’s clear the BW 213 BCV-5 is punching above its weight class. “It is able to do the same job as the 16-tonne weight class and also comparatively the 19-tonne class depending on the material type,” he says. “The ability for the BW 213 BVC-5 to adjust its amplitude makes it well suited to an even larger range of projects and then its high centrifugal force acts as another proponent to increase compaction quality.” The manual feature of the roller means the operator can switch to an oscillation mode with the touch of a button. On automatic mode it can compact to a target E-VIB value ensuring uniform compaction across the whole project. All BOMAG BVC models come equipped with the TERRAMETER measurement system that continuously calculates the dynamic soil stiffness as a vibration modulus E-VIB [MN/m2]. This measuring technology allows single drum rollers to become rolling pressure plates, calculating the surface area coverage in real time. The E-VIB values are computed based on the compression paths of contact forces

versus the drum displacement curves. The E-VIB values grow with an increase in roller passes. This is presented as a line diagram on the machine’s integrated display through


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