bomag compaction measurement and documentation systems. · analogy between the plate load test and...
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BOMAG compaction measurement and documentation systems.The transparent construction site up close.
„In an age of virtual communication, a customer can rightly expect that, as the global market leader, we will make available all significant data and parameters of the work carried out on call and at his disposal 24/7.“
Robert Laux, Vice President Engineering.
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Electronics unit(ESX)
Acceleration sensors
Travel sensor
Documentation system
BOMAG EVIB measuring technology makes it possible to control compaction even during the compaction process. Surface covering and precise.
Quality requirements on earthworks and road construction are continually increasing. The aim is to meet quality standards and to optimise the use of compaction machinery. With this in mind, documen-tation of compaction processes and the compaction quality achieved are becoming more and more important.
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BOMAG EVIB measuring technology: Reaching targets. Every time.
BOMAG compaction measurement and docu-
mentation systems are used for continuous and
surface covering compaction control. BOMAG
measuring technology is based on the EVIB value.
This is a value that calculates the soil stiffness in
MN/m2 during the compaction process. The EVIB
value is a physical measured value that corre-
lates directly with the plate-loading test used in
earthworks and road construction.
It expresses the correlation between the ground
contact force and the indentation of the rol-
ler drum. By changing the EVIB value, the roller
operator is permanently informed of compaction
progress.
The result:
The efficiency of compaction work is improved,
as unnecessary passes can be prevented, weak
spots discovered in good time, and time and effort
carrying out inspections can also be reduced. The
contractor will save time and money.
Overview of the system for surface covering dynamic compaction control.
B O M A G c o m p a c t i o n m e a s u r e m e n t a n d d o c u m e n t a t i o n s y s t e m s
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How exactly is the EVIB value created? BOMAG compaction measuring systems use the
interaction of the acceleration of the vibrating drum
and the dynamic stiffness of the soil. In general, the
soil stiffness will increase as compaction increases.
If the soil becomes stiffer, the drum acceleration will
also increase.
The measuring sensors record this acceleration
and from this determine the effective contact force
between the soil and drum and, at the same time,
the oscillating path of the entire drum. If the contact
force is then laid on top of the oscillating path of the
drum, this results in a loading and unloading curve
for every revolution of the eccentric weight in the
drum. The surface included in this curve correlates
with the compaction energy imparted. The EVIB value
arises from the analysis of the load curve, as this
correlates with the stiffness of the soil.
Unmatched precisionOnly BOMAG uses two measuring sensors on the
drum to optimise measuring accuracy. The measur-
ing density is also unparalleled: The EVIB value is
continuously measured with a measuring density
value of up to 10 cm. This ensures that every weak
spot is detected.
Determining the EVIB value.
Recording vertical and horizontal acceleration.
A clear statement: EVIB correlates with plate load tests.
Analogy between the plate load test and BOMAG compaction measu-ring technology.
Ground reaction force FB Ground reaction force FB Ground reaction force FB
FB: Ground reaction forcem: Vibrating drum massa: Acceleration
FZ: Centrifugal forceFstat. Static axle loadLoad pressure relief
Vibration path [mm],s Vibration path [mm],s Vibration path [mm],s
Increasing compaction
Passes
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Different indicator systemsThere are various instruments to choose from
when it comes to indicating the EVIB value. The
BOMAG EVIB meter BEM represents the starter
device. In addition to the two acceleration sensors,
the unit includes a distance gauge, an electronic
unit and a circular instrument, the EVIB analogue
display, located with the driving instrumentation.
The advantages:n Determination of the EVIB valuen Indication of trend towards a compaction
increasen Detection of weak spots and inconsistencies.
And modules are available to upgrade to other
measuring system versions.
The BOMAG Terrameter BTM is even more con-
venient to use. Instead of an EVIB analogue display,
it has a BOMAG Operation Panel (BOP), a conveni-
ent control unit.
Other advantages:n The driver sees a message on the display when
the target value has been reached or if further
compaction is no longer possible.n The results are displayed digitally and in the
form of bar charts.n The printer can be used to print out line dia-
grams and bar charts to document coverage of
small and medium-sized sites.
BOMAG EVIB meter BEM with analogue display.
BOMAG terrameter BTM with the BOMAG Operation Panel BOP and printer.
The compaction status can be printed out and documented as a bar chart or line diagram using the EVIB value. The terrameter indicates the maximum compaction possible.
The EVIB value indicates the soil stiffness and evenness of compaction.
B O M A G c o m p a c t i o n m e a s u r e m e n t a n d d o c u m e n t a t i o n s y s t e m s
Gravelly sand Clay Concrete
Te c h n o l o g y
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The BOMAG COMPACTION MANAGEMENT BCM 05
is used for large scale projects and at all sites
where surface covering dynamic compaction
control is required or recommended. BCM 05 is
a tablet PC suited to use on construction sites;
it determines, displays and saves the EVIB values
of the entire construction site using the BCM 05
mobile software. This means no more hassle with
printing. Compaction can be tracked in real-time,
lane by lane, and location by location on the large
display. The PC displays the entire surface to be
compacted. The measured EVIB values are dis-
played as line diagrams and colour intervals. The
colour intervals can be chosen as required, so that
both compaction progress and weak spots can be
clearly identified during work. With a USB-stick
the data can be transferred to a stationary PC for
analysis and documentation with the software
product BCM 05 office.
The BCM 05 scope of delivery includes:n Tablet PC with touchscreenn USB memory stickn Robust, lockable tablet PC holdern BCM 05 software
*German regulations ZTVE-StB 2009, ZTV SoB-StB 04, TPBF-StB Part E2, DB Ril 836 Austrian regulations: RVS 8S.02.6
The complete solution: BCM 05 and BCM 05 positioning.
The optional BOMAG Compaction Management BCM 05 offers the most convenient solution for docu-menting results. Informative and detailed measuring records can be created easily for specific sites; this ensures comprehensive documentation complying with the rules and regulations* of Surface Covering dynamic Compaction Control (SCCC).
The BCM 05 tablet PC: suitable for construction sites, user friendly and delivers information.
Using BOMAG measuring technology, the operator really has everything under control while work is in progress.
In contrast to the terrameter, which prints out individual documents on site, the BCM 05 offers the convenience of an analysis of the entire construction site from one stationary PC.
B F 6 0 0 F i n i s h e r
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AdvantagesThe BCM 05 documentation system is the basis
of cost-effective compaction; it reduces the need
for inspection and minimises the risk to the
contractor:n The roller operator is kept continuously informed
of uncompactable or difficult to compact areas;
n Representation of the results in relation to the
specified target
n Representation of variations in quality with
interval observation
n Enhances comprehensive measured data
management and clear construction site organi-
sation
n Informative and detailed measuring records and
comprehensive documentation complying with
the rules and regulations of surface covering
dynamic compaction control
The recording of these measured values is unique
in its detail.
The colour display provides:n High density of measured values: up to 1 meas-
ured value per 10 cm length of rolled trackn Real time display of the compaction and load
capacity status in the form of diagrams and
numbers
n Comparison of the current measurement curve
with the measured values of the previous passn Visual and graphic warning when the measured
values deterioraten Registration and display of local recompaction
zones or bounce moden Documentation of the date and time
Once the data has been transferred to a stationary
PC per USB stick, the BCM 05 software also offers:n Project managementn Statistical analysesn Archivingn Convenient print managern Calibration program
The measurement records and calibration program
contain and enable all of the data and diagrams
required for the documentation of the SCCC
according to regulations, incl. a regression dia-
gram.
BCM 05 office software for project management, statistical analyses and archiving.
Overview of measurement record. Top view of measurement record. 2D representation of measurement record.
B O M A G c o m p a c t i o n m e a s u r e m e n t a n d d o c u m e n t a t i o n s y s t e m s
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BCM 05 positioning ensures that documentation
is safe from operating errors and manipulation.
Compaction is completely documented, just like on
a map.
The following systems are required in order to
use satellite-assisted surface covering dynamic
compaction control:
BCM 05 positioning – linking of EVIB measured values with position data.
BCM 05 positioning links the EVIB measured values with the position data of a differential GPS system. Documentation becomes even more user friendly: No fields need to be defined in advance and the roller driver does not need to assign his current position to the defined track. After all, the roller knows itself exactly where it is.
Precise position determination to the centimetre with a reference station.
Precise position determination to within 20 cm using a satellite-assisted reference service.
For immediate use anywhere: BOMAG StarFire GPS receiver.
n BCM 05 display with BCM 05 mobile and office
softwaren BCM 05 positioning softwaren GPS system with holder and wiring loom
BOMAG software is capable of interfacing with
conventional DGPS systems with and without a
reference station. However, the positioning accu-
racy depends on the chosen GPS system. The raw
data supplied by the GPS system can be trans-
formed with the aid of BCM 05 into construction
site coordinates.
For additional orientation, points and/or axes can
be easily read into the portrayed structure of the
construction site.
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BOMAG uses the compact and simple to install
Starfire iTC system as the DGPS solution; this
works with a satellite-assisted reference service
to achieve positional accuracy to at least 20 cm.
This system does not require a reference station,
as BCM 05 positioning can also be combined with
Use of the Starfire iTC system for surface covering compaction control ...
... and use of GPS receivers with separate antennae and reference stations.
View of surface covering GPS-assisted compaction control during compaction.
GPS-assisted documentation of the subgrade level compaction of an industrial estate.
GPS-assisted documentation of passes and assessment of the evenness of compaction on an embankment.
any other conventional DGPS systems; an existing
infrastructure on site can be used without difficulty.
The Starfire iTC system is extremely compact and
can be installed quickly and easily. There is no
need for specialist staff to commission the system.
B O M A G c o m p a c t i o n m e a s u r e m e n t a n d d o c u m e n t a t i o n s y s t e m s
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In conjunction with GPS applications, the technol-
ogy helps the contractor to monitor and control
asphalt compaction work. During compaction, the
calculated EVIB values which are used as a refer-
ence value for compaction progress are continu-
BOMAG measuring technology – also used in asphalt compaction.
The EVIB measuring technology is also used for asphalt compaction. The basis is the self-regulating ASPHALT MANAGER rollers with integrated EVIB measuring technology and temperature sensors. When the rolling temperature is greater than 100 °C, the stiffness value determined by the roller can usually be used directly as a reference for compaction quality.
Calibration with a nuclear guage to determine the correlation between EVIB and density.
Correlation between EVIB and density using the example of an asphalt base layer.
BCM for surface covering compaction control with GPS (optional).
ously documented together with the number of
passes, the asphalt temperature, amplitude and
frequency, and all the associated construction site
coordinates.
GPS-assisted, surface covering presentation of the compaction quality of an asphalt layer.
EVIB and density as a function of the passes: BW 174 AD Asphalt Manager,Automatic; Asphalt layer 0/32 CS B65, A3 Nürnberg
EVIB
Surface temperatureMiddle temperature
Troxler density
Passes4 cm SMA 0/11 S
8 cm Binder 0/22
> 10 cm ATS 0/32
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BCM net – the transparent construction site up close: Seamless transparency for higher cost-effectiveness.
Networking several rollers on site provides an
opportunity to create an overall picture of com-
paction over the entire site. With BCM net, not
only the data from one machine, but data from all
machines involved in the compaction work can be
recorded and displayed on one screen.
For this, the rollers are equipped with GPS receiv-
ers and connected up via a wireless network. They
permanently transmit their positions, the compac-
tion results and other necessary parameters, such
as the asphalt temperature or speed to the server.
The data is updated every 5 seconds and the
server distributes the new „picture“ to all network
users. This enables every roller operator to follow
their own compaction progress and that of the
other machines.
Overview of the advan-tages:n Early detection of weak
spots in the subsoil to
minimisation risksn Reduction in unneces-
sary passes once speci-
fied values have been
reached.n Reduction in time and
effort on inspectionsn Smooth documentation
of compaction quality
on asphalt construction
and earthworks
BCM net – the online network enables direct data exchange between the rollers.
n Support in terms of comprehensive measured
data management – giving clear, cost-effective
organisation of the construction siten Easy and quick to install DGPS solutions that
work independently of reference stationsn Recording and documentation of data from all
machines involved in the compaction process
via BCM net – for more efficiency on construc-
tion site
BOMAG compaction measurement and documen-
tation systems provide the basis of cost-effective
compaction. They provide high, uniform compac-
tion quality, save the contractor time, effort and
money, and increase protection against subse-
quent claims for remedials.
Data exchange:The same informationfor all participants.
Constructionmanagementand qualitycontrol
B O M A G c o m p a c t i o n m e a s u r e m e n t a n d d o c u m e n t a t i o n s y s t e m s
03/1
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www.bomag.com
Head Office / Hauptsitz:
BOMAG
Hellerwald
56154 Boppard
GERMANY
Tel. +49 6742 100-0
Fax +49 6742 3090
info@bomag.com
BOMAG Maschinen-
handelsgesellschaft m.b.H.
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1230 Wien
AUSTRIA
Tel. +43 1 69040-0
Fax +43 1 69040-20
austria@bomag.com
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Mississauga, Ontario L5C 4P9
CANADA
Tel. +1 905 361 9961
Fax +1 905 361 9962
canada@bomag.com
BOMAG (CHINA)
Compaction Machinery Co. Ltd.
No. 2808 West Huancheng Road
Shanghai Comprehensive
Industrial Zone (Fengxian)
Shanghai 201401
CHINA
Tel. +86 21 33655566
Fax +86 21 33655508
china@bomag.com
BOMA Equipment
Hong Kong LTD
Room 1003, 10/F Cham Centre
700, Castle Peak Road
Kowloon
HONG KONG
Tel. +852 2721 6363
Fax +852 2721 3212
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FRANCE
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Fax +33 1 69962660
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gb@bomag.com
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Via Roma 50
48011 Alfonsine
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Tel. +39 0544 864235
Fax +39 0544-864367
italy@bomag.com
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Ul. Szyszkowa 52
02-285 Warszawa
POLAND
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poland@bomag.com
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Khimki, Klayazma block, h. 1-g
RUSSIA
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russia@bomag.com
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