ASTM D3633-98
(Test Method)Standard Test Method for Electrical Resistivity of Membrane-Pavement Systems
Standard Test Method for Electrical Resistivity of Membrane-Pavement Systems
SCOPE
1.1 This test method covers the measurement of the electrical resistivity of water-barrier membrane-pavement systems when applied to concrete bridge decks.
1.2 Measurements shall be performed on the bituminous pavement surface covering the water-barrier membrane.
1.3 This test method utilizes a measure of electrical resistance between the saturated top surface of the water-barrier membrane and the reinforcing steel embedded in the concrete bridge deck.
1.4 The values measured represent the electrical resistance obtained with the equipment and procedures stated herein and do not necessarily agree or correlate with those using other equipment or procedures.
1.5 The values stated in SI units are to be regarded as the standard.
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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Designation:D3633–98
Standard Test Method for
Electrical Resistivity of Membrane-Pavement Systems
This standard is issued under the fixed designation D3633; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope 4. Significance and Use
1.1 This test method covers the measurement of the electri- 4.1 This test method for measuring the electrical resistivity
cal resistivity of water-barrier membrane-pavement systems of water-barrier membrane-pavement systems may be inter-
when applied to concrete bridge decks. preted to indicate the effectiveness of such systems.
1.2 Measurements shall be performed on the bituminous 4.2 This test method is predicated on the fact that an
pavement surface covering the water-barrier membrane. electrical connection between the surface of the pavement and
1.3 This test method utilizes a measure of electrical resis- the reinforcing steel in the concrete pavement cannot be made
tance between the saturated top surface of the water-barrier through an impermeable water-barrier membrane.
membrane and the reinforcing steel embedded in the concrete 4.3 This test method may be used for acceptance when the
bridge deck. accepting agency specifies the minimum resistance value
1.4 The values measured represent the electrical resistance desired.
obtained with the equipment and procedures stated herein and
5. Apparatus
do not necessarily agree or correlate with those using other
equipment or procedures. 5.1 Ohmmeter, dc, 20 000 V/V rating connected to a
double-pole, double-throw switch box or ac ohmmeter (switch
1.5 The values stated in SI units are to be regarded as the
standard. box not required).
1.6 This standard does not purport to address all of the
NOTE 1—When this test method is used for acceptance, the accepting
safety concerns, if any, associated with its use. It is the
agency should specify the type of ohmmeter to be used.
responsibility of the user of this standard to establish appro-
5.2 InsulatedWire,No.18,Beldentestprobewireorequiva-
priate safety and health practices and determine the applica-
lent. Two spools, minimum 38 m (125 ft).
bility of regulatory limitations prior to use.
5.3 Copper Plate, 305 by 305 by 3.0 mm (12 by 12 by ⁄8
in.), with the means for connecting the ohmmeter lead and a
2. Referenced Documents
wooden handle approximately 1 m (39 in.) in length.
2.1 ASTM Standards:
5.4 Polyurethane Sponge, 305 by 305 by 13 mm (12 by 12
C670 Practice for Preparing Precision and Bias Statements
by ⁄2 in.), to be attached to the copper plate with rubber bands
for Test Methods for Construction Materials
or other suitable means. When assembled this apparatus is
D3743 Terminology Relating to Bridge Deck and Sub-
called the probe.
structure Protection
5.5 Pressure Spray Can, 12-L (3-gal) capacity, with a hose
D4071 Practice for Use of Portland Cement Concrete
and spray nozzle.
Bridge Deck Waterproof Barrier Membrane Systems
E105 Practice for Probability of Sampling Materials
6. Reagent
6.1 A wetting agent which, when added to the water, will
3. Terminology
break the surface tension and promote the penetration of the
3.1 For definitions of terms used in this specification, refer
water through the bituminous pavement.
to Terminology D 3743.
NOTE 2—Anexampleofawettingagentisasuper-saturatedsolutionof
cupric sulfate crystals in warm water to which is added 19 mL/gal of
This test method is under the jurisdiction of ASTM Committee D04 on Road
Dioctyl Sodium Sulfo-succinate (Tradename “Aerosol” OT Clear, 10%).
and Paving Materials, and is the direct responsibility of Subcommittee D04.32 on
When ambient test site temperature is below 50°F (10°C), add 15% by
Bridges and Structures.
volumeofeitherisopropylordenaturedalcoholtopreventcloudingofthe
Current edition approved Dec. 10, 1998. Published March 1999. Originally
wetting agent. Clouding of the wetting agent may inhibit penetration.
published as D3633–77. Last previous edition D3633–94.
Annual Book of ASTM Standards, Vol 04.02.
Annual Book of ASTM Standards, Vol 04.03.
Annual Book of ASTM Standards, Vol 14.02.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
D3633–98
7. Sampling 8.2.2 Check for overall equipment operation and satisfac-
tory circuit by placing the probe on exposed concrete deck
7.1 Determine locations on the bridge deck to be tested by
curbing and observing the resistance reading on the ohmmeter.
using either a grid pattern similar to that illustrated in Fig. 1 or
This reading will normally range from 1000 to 3000 V for
by a random location system, based upon Practice E105 or a
variousbridgedecks.Placetheprobeatseverallocationsalong
similar method, that will ensure that the bridge deck area to be
the curb and observe the readings, which must remain rela-
tested will be adequately represented.
tively constant as an indication of a complete electrical circuit
8. Procedure and especially to ensure a good contact with the reinforcing
steel.
8.1 Prepare the surface to be tested by removing all foreign
material by sweeping or scraping, or both. Do not use water to
NOTE 4—Excessive moisture in the pavement would cause invalid
clean. The surface must be dry and clean before testing.
resistance readings. To give a measure of assurance against this, the
resistance between any two test sites may be checked prior to the testing
8.1.1 Locate the reinforcing steel with a pachometer. Drill
sequence described in 8.3 through 8.4. This is accomplished by attaching
witharotaryimpacthammeratselectedlocationstoexposethe
theohmmetertotwoprobes,ratherthanasingleprobe,andthereinforcing
reinforcing steel to allow attachment of ohmmeter leads.
steel. Immediate low readings (10 000 6V) will indicate excessive
Alternately, drill until the drill bit contacts the steel firmly to
moisture in the pavement and on top of the membrane and further testing
allow ohmmeter lead attachment.
of the entire deck, or at least such identified portions of it, should be
8.2 Uncoil an ample length of wire to reach
...
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