The document discusses various instrumentation solutions critical for infrastructure development, specifically focusing on asphalt testing and quality control in construction projects. It highlights the functionality and features of tools like the falling weight deflectometer (FWD), dynamic shear rheometer, and universal testing machine, emphasizing their roles in ensuring construction standards and life expectancy. The document further underscores the importance of using high-quality instruments for effective evaluation during pre and post-construction activities.

1. Infrastructure And Importance
Of Instrumentation
1 CECR April 2018
INSTRUMENTATION
and determines the optimum rehabilitation alternatives. The FWD is
available as a trailer or a truck mounted version (USA only) meeting
all FWD standards worldwide.
Visco-2000 Viscometer
The Aimil Visco 2000 Viscometer is
specially designed to perform ASTM 04402
BIS 73 high temperature testing of
asphalt binders. The viscometer features
an electrically heated thermal chamber
with an auto - tuned PIO controller for
precise regulation of asphalt temperatures
up to 300°C supplied complete with a C25
titanium bob stainless-steel cup. Single
point measurements can be performed via
the instrument front panel and displayed
on the built-in keyboard or optional printer,
eliminating the need for a PC. However,
if more sophisticated tests and analysis is
needed, the viscometer can be interfaced with a PC and can be used
in conjunction with Aimil Visco software.
Dynamic Shear Rheometer
The Malvern Kinexus DSR Series is the next generation rotational
rheometer platform for Asphalt testing that’s been developed
from extensive market knowledge and feedback, integrating
innovative instrument
design with a revolutionary
software interface, to deliver
an intelligent solution that
will exceed your rheological
expectations. A modular
rheometer with true ‘plug and
play’ functionality is available
for all measuring systems
and environmental control
units. The Kinexus DSR Series
I
nfrastructure is critical for development of any nation. An
appropriate level of quality can be determined during all phases of
the construction project by using Quality Equipment, especially in
construction and commissioning stages. It is therefore suggested no
compromises should be done with use of Quality Instruments as these
ensure construction of desired standards and life.
Quality check of Road construction includes properly evaluating
the pre and post construction activities, which is a very sensitive and
intensive activity. Rightly choosing the effective substitute methods
to conventional methodologies can improve the quality control check
for soil compaction in a highly cost effective, less human intervention
and errorless way.
Light Weight Deflectometer (LWD)
The Dynatest Light Weight Deflectometer (LWD), also known
as the light falling weight Deflectometer (LFWD), light drop weight
test and dynamic plate load test, is a portable device that measures
the soil in-situ LWD dynamic modulus (Stiffness and in-situ elastic
modulus). Typically, this modulus is used to evaluate the subsoil degree
of compaction. Thus, it is suitable for compaction quality control of
soil-surfaced roads, embankments and replacement fill.
Falling Weight Deflectometer (FWD)
The Dynatest Falling Weight Deflectometer (FWD) applies a
dynamic load that simulates the loading of a moving wheel. The
pavement response is analysed with
Dynatest’s ELMOD (Evaluation of
Layer Moduli and Overlay Design)
software to determine the elastic
moduli, stresses and strains of each
modelled layer. ELMOD reports the
weakest layer of failure, residual life

2. 2 CECR April 2018
INSTRUMENTATION
enables pioneering Standard Operating Procedure (SOP) based testing
with a built-in comprehensive library of standard test protocols for
the Asphalt industry.
Universal Testing Machine
The Cooper UTM machine is a
development of the NAT, which was
developed by Keith Cooper and Professor
Steven Brown at the University of
Nottingham. The use of a high precision
servo-valve in conjunction with a low-
friction actuator and sophisticated data
acquisition and control, results in a
performance that is equal to many servo-
hydraulic systems.
Accurate, digitally generated
waveforms are applied by the actuator
producing repeatable stress variations in test specimens that are
simulative of those in a road pavement due to moving traffic. The
actuator is double-acting allowing both compressive and tensile forces
to be applied. Different attachments are available for the measurement
of Resilient Modulus (ASTM D7369), Dynamic Creep, ITD for Asphalt,
unbound soil testing etc.
Compression Testing Machine
Automatic Compression Testing
Machine are fully automated version of
the manual/semi-automatic compression
testing machine. The machine is available
in 50kN to 5000kN capacity ranges.
CTM has provision for automatically
turning the pump on off, controlling
the set pace rate switching the
machine off under predetermined
conditions. The control releases the
pressure at the end of every run
beginning of every test. The pace rate is maintained by means of
full three term PIO feedback control using high torque stepper
motors driver sets. Data acquisition, storage, management
analysis are all fully automated.
Pave Frame
The “True Speed” load frame provides a long term, very low
maintenance, value for money operation. The frame works on an
internal feedback system and eliminates the fixed gear system. The
limitation of speed drops in the older load frames with increase in
load is now removed, giving higher accuracy. True Speed Pave Frame
is used for applications such as CBR, UCS, Marshall both standard and
modified, indirect Tensile, Triaxial and other routine tests.
Bump Indicator
Bump Integrator also known as Roughometer or Automatic Road
Unevenness Recorder gives quantitative integrated evaluation of
surface irregularities on a digital counter or LCD screen. It comprises
of a single wheeled trailer, with a pneumatic tyre mounted on a
chassis, on which an integrating device is fitted. The machine has a
panel board fitted with two or four sets sets of digital counters for
accounting the unevenness index value. The operating speed of the
machine is 32±0.5 km/hr.
Asphalt Content Tester (IRC Accredited)
This machine is used to determine the asphalt content of hot mix
asphalt (HMA), paving mixtures and pavement samples by removing
the asphalt in an ignition furnace by means of sample heating not by
means of solvents.
For further information, contact:
Marketing Communications Division
Aimil Ltd
E: delhi@aimil.com, T: 011-30810200
W: www.aimil.com