
PROTIMETER
Moisture testers for soils,
sands, powders, aggregates,
concrete and masonry

Features and Benefits
Speedy® Moisture Tester
Speedy moisture testers from Ashworth
Instrumentation are used throughout the
world by a diverse range of industries
to measure the moisture content
of materials including soils,
aggregates, concrete, sand and
powders. Principal users include
geotechnical engineers on civil
engineering projects, building
surveyors and restorers.
Other substantial user groups
include mining, steel production,
foundries and ceramics.
Operating Principle
The Speedy tester is a
portable system comprising
a vessel with an integral
pressure gauge, a weighing
scale and a carry case. A
small sample of the material
is prepared, weighed and
placed into the vessel. A
reagent is then added and
the vessel is sealed and
shaken to mix the reagent
with the sample. Free
moisture within the sample
reacts with the reagent to produce a gas and
pressure rise within the vessel that is proportional to
the amount of moisture. The moisture content value
is then read directly form the calibrated pressure
gauge.
Speedy® User Benefits
When compared with other moisture measurement
systems, the Speedy tester is often the most
practical solution, especially when working in the
field.
• Accurate and simple to use
• Robust and reliable
• Portable and requires no external power source
• Versatile - many materials can be measured
over a wide moisture content range
Speedy® 2000 Series Test
Procedure
The Speedy 2000 series
of moisture testers
combines time proven
dependability of the
pressure test procedure
with the convenience of
an electronic balance.
Moisture measurements are obtained by following a
simple test procedure:
• Prepare and weigh the material sample using
the electronic balance
• Place the sample in the Speedy vessel
• Add the reagent to the recess in the Speedy cap
and seal the vessel
• Shake the Speedy to mix the reagent with the
sample
• Read the moisture content directly from the
integral gauge
Speedy® Series Components
All the component
parts of the Speedy
2000 series have
been selected for their
quality, functionality
and durability for use
in demanding field or
site locations.
• Speedy vessel manufactured from cast
aluminium and fitted with a calibrated pressure
gauge
• Electronic balance with large scale pad
• Comprehensive user instructions
• Waterproof and shockproof carry case with high
density foam insert
A pressure gauge with a moisture measurement
range of 0 - 20% is fitted as standard to both
the Large and Small vessels, but gauges
with both wider and narrower moisture
ranges are available.
Standard Size Speedy
2

Applications
Roads and Highways
Knowledge of the moisture content of soil is
crucial throughout geotechnical engineering
practice. Engineers use the Speedy for field control
of compacted earth embankments and other
structures and to measure the water content of soil
to ensure it is within specified ranges.
Confidence in the test results is crucial, but the
test equipment also has to be robust and simple
to use. The Speedy tester meets both of these
requirements. It is recommended by the American
Highway Authority and is approved by the American
Society of State Highway Transportation Officials
(ASSHTO) and by the American Society for Testing
and Materials (ASTM).
Aggregates, Sand and Concrete
The moisture content of freshly mixed concrete
affects the workability, blending, segregation,
strength and drying rate of the finished
product. The
Speedy tester is
an ideal on-site
quality control
tool that enables
the site manager
to ensure best
practice is
being followed.
Moisture levels
of aggregates and sand can be checked prior
to use to ensure that the correct amount of
water is added when mixing with cement. The
moisture content of ready-mix concrete can
be checked on site arrival to ensure it is within
specification.
Building Restoration and
Refurbishment
Building surveyors
involved with diagnosing
the cause of dampness in
buildings use the Speedy
tester to determine the
moisture level in walls
and floors. The Speedy
complements moisture
meters and hygrometers
that are also used for diagnosis.
If the structure under investigation is contaminated
with conductive hygroscopic salts, moisture
meter readings may not truly reflect the moisture
condition. Ambiguity that may be associated
with interpreting moisture meter readings in
contaminated material are reduced by also
measuring the actual moisture content of wall or
floor samples with the Speedy tester and by using
a hygrometer to measure the material’s equilibrium
relative humidity (ERH).
The Building Research Establishment Digest 245
details how a Speedy tester is used in the context
of rising dampness diagnosis and treatment.
Solid Floors
If moisturerelated floor
failures are
to be avoided,
concrete
floor slabs,
cementitious
screeds and
anhydrite
screeds have to be in a dry condition before
decorative floor finishes, including wood, vinyl and
carpet are laid.
Many countries have adopted floor testing
standards that use ERH measurement techniques
whilst others use the DIN18365 standard
which specifies moisture content measurement
techniques. The Speedy tester is used to measure
the moisture content of a sample of material
removed from the floor before the decorative finish
is laid.
3

Speedy 2000 Specifications
Series L2000 S2000
Scope of supply (Note tat the
calcium carbide reagent that is
used with the Speedy testers
must be ordered separately)
Nominal gross weight 6kg 5.5kg
Nominal gross dimensions 51 x 38 x 20 cm 51 x 38 x 20 cm
Moisture measurement range
expressed as a percentage of
the wet weight of the sample
Sample weight
LargeSpeedyvesselttedwith
calibrated pressure gauge,
electronic balance, heavy duty
carrycasewithttedfoam
inserts, cleaning brush and cloth,
two steel sample-pulverising
balls, measuring scoop,
instructions
0 - 20 % (standard)
0 - 10 % (option)
0 - 50 % (option)
For 0 - 20 %mc range : 20g
For 0 - 10 %mc range : 40g
For 0 - 50 %mc range : 8g
StandardSpeedyvesseltted
with calibrated pressure gauge,
electronic balance, heavy duty
carrycasewithttedfoam
inserts, cleaning brush and cloth,
measuring scoop, instructions
0 - 20 % (standard)
0 - 5 % (option)
0 - 10 % (option)
For 0 - 20 %mc range : 6g
For 0 - 5 %mc range : 10g
For 0 - 10 %mc range : 12g
Maximum sample size 20mm 10mm
Advanced Sensors
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AAS-BR-218A - 09/2014