Humboldt H-2911 — H-2919 Compressometers / Extensometers - Manual (Page 2)

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Introduction
Compressometer
The Compressometer is used for evaluating deformation and strain char-
acteristics of concrete cylinders while undergoing compression testing. The
Compressometer includes two cast aluminum-alloy yokes, mounting and central
points, stainless steel control rods. Models are available with a dial gauge— with
a range of 0.2" (5.08mm) and minimum graduations of .0001 (.0025mm), as well
as with a digital indicator
or a LSCT transducer. Digital indicators and LSCT models can be used with data
acquisition systems through the use of our MiniLoggers, see below. Meets ASTM
C469. Shipping wt. 22 lb (10kg).
Compressometer-Extensometer
Combined compressometer and extensometer for 6" dia. x 12"L (152 x 305mm)
concrete cylinders is a convenient unbounded device. Apparatus contains a third yoke
located halfway between the two compressometer yokes and attached to the specimen
at two diametrically opposite points. Middle yoke is hinged to permit rotation of the
two segments of the yoke in the horizontal plane. Indicator gives deformation readings.
Second indicator is furnished for compressometer section. Unit measures changes in
length and diameter. All H-2900 Series Compressometers may be ordered with dial
gauges, digital indicators or strain transducers, see chart below. Digital Indicators
and strain transducers can be used to construct a data acquisition system using our
HM-2325A.3F and HM-2330D.3F MiniLoggers. Meet ASTM C469.
Compressometer/
Extensometer
Dial
Gauge
Digital
Indicator
LSCT
for use with
6” x 12” (152 x 305mm) cylinders
H-2912 H-2912D H-2912L
for use with
4” x 8” (101 x 203mm) cylinders
H-2917 H-2917D H-2917L
for use with
3” x 6” (76 x 152mm) cylinders
H-2919 H-2919D H-2919L
Compressometer
Dial
Gauge
Digital
Indicator
LSCT
Compressometer for use with
6” x 12” (152 x 305mm) cylinders
H-2911 H-2911D H-2911L
Compressometer for use with
4” x 8” (101 x 203mm) cylinders
H-2916 H-2916D H-2916L
Compressometer for use with
3” x 6” (76 x 152mm) cylinders
H-2918 H-2918D H-2918L