ASTM D4070-91(1996)e1

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e1
Designation: D 4070 – 91 (Reapproved 1996)
Standard Specification for
Adhesive Lubricant for Installation of Preformed
Elastomeric Bridge Compression Seals in Concrete
Structures
This standard is issued under the fixed designation D 4070; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
e NOTE—Keywords were added editorially in July 1996.
TABLE 1 Physical Requirements
1. Scope
Test
1.1 This specification covers an adhesive lubricant for
Property Requirements Method
facilitating the insertion and positioning of preformed elasto-
Section
mericbridgecompressionsealsineitherconcreteorsteel-faced
Solids content, min % 60 9.1
joints, and which bonds the seal to the joint faces to waterproof
Homogeneity shall be uniform, no lumps or None
agglomerates, no settlement
the joint.
in the container
Viscosity, cP 20 000 to 300 000 9.2
2. Referenced Documents
Shear ratio, min, for viscosity 9.2
in the range of:
2.1 ASTM Standards:
20 000 to 100 000 cP 1.5
D 1084 Test Methods for Viscosity of Adhesives
100 001 to 200 000 cP 2.0
200 001 to 300 000 cP 2.5
3. General Requirements
Shear ratio, max 4.0 9.2
Lubricating life, min, h 2 9.3
3.1 The adhesive lubricant shall be a one-component,
Sag no sagging 9.4
moisture-curing, polyurethane compound extended with aro-
Peel strength test maximum length peeled from 9.5
concrete within 3 min
matic hydrocarbon solvent. The compound shall provide ad-
500-g load none
equate lubrication for insertion of the seal into the joint and, in
1000-g load 12 mm ( ⁄2 in.)
the actual field application, shall bond the seal to the joint face
Shelf life for 6 months after manufacture,
no skinning over and settling
throughout repeated cycles of expansion and contraction,
in the container to the extent
effectively sealing the joint against infiltration of moisture.
that it cannot be brought to a
smooth uniform product by
4. Physical Requirements
stirring
4.1 The material shall conform to the physical properties
described in Table 1.
5.2 Samples shall be taken at the point of manufacture or
5. Sampling
warehouse prior to delivery, or at the point of delivery from
5.1 Samples of the adhesive lubricant shall be 1 L (1 qt)
each lot.
consisting of a composite taken from three or more separate
containers chosen at random from the same batch. A batch or
6. Test Conditions
lot shall be considered as all finished material that was
6.1 Tests shall be conducted at standard laboratory condi-
manufactured simultaneously or continuously as a unit prior to
tions of 23 6 2°C (73.4 6 3.6°F).All materials and equipment
packaging. Each of the containers sampled shall be resealed
shall be held at these conditions prior to test for a sufficient
and marked for identification.
time to assure equilibrium.
7. Specimen Preparation
This specification is under the jurisdiction of ASTM Committee D-4 on Road
and Paving Materials and is the direct responsibility of Subcommittee D04.34 on 7.1 Using a square-tipped spatula, thoroughly hand-mix
Preformed Joint Fillers and Sealers.
approximately 500 mL (1 pt) of lubricant adhesive in a round
Current edition approved April 15, 1991. Published June 1991. Originally
can for 1 min.
published as D 4070 – 81. Last previous edition D 4070 – 81.
Annual Book of ASTM Standards, Vol 15.06.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
D 4070
8. Apparatus 9.2.2 Shear Ratio—With the spindle used for the viscosity
determination,measuretheviscosityofthematerialat2.5rpm;
8.1 Oven—The oven shall be a circulating air oven capable
and then at 0.5 rpm. Calculate shear ratio as follows:
of maintaining temperature of 105 6 2°C (221 6 4°F.).
8.2 Viscometer—It shall be a Brookfield Model RVT vis- Shear Ratio 5 viscosity at 0.5 rpm/viscosity at 2.5 rpm (2)
cometer with helipath stand and, TA, TB, TC, TD and TE
9.3 Lubricating Life—Apply a 65 to 78 mm wide, by 150
spindles.
mm long, by 0.75 6 0.10 mm thick (2 ⁄2 to 3 in. by 6 in. by
8.3 Rubber Strips—The rubber strips shall be 150 mm (6
0.030 6 0.004 in.) strip of the lubricant adhesive to a glass
in.) long, 25 mm (1 in.) wide and 1.5 mm ( ⁄16 in.) thick, and
plate or smooth-surface paper test chart using a film applicator.
shall be obtained from an outside wall of preformed elasto-
Testlubricatinglifebyrubbingfingeroncoatedchartat30-min
meric bridge seal representative of the seal to be bonded with
intervals. Record lubricating life as the time at which drag or
the adhesive lubricant.
friction increases noticeably and material starts to thicken or
8.4 ConcreteBlocks, 200 by 200 by 75 mm (8 by 8 by 3 in.)
become tacky.
and made of concrete similar to the concrete to which the seal
9.4 Sag—Applya0.7560.01mm(0.030 60.004-in.)thick
is to be bonded. The blocks shall be cured for at least 14 days
film of material to a glass plate or smooth-surface paper test
in a moisture room followed by at least 7 days at normal
chart in the manner as described in 10.3. Support glass plate or
laboratory air condition. The test surface shall be smooth,
chart vertically with the 150-mm (6-in.) axis of the strip
freshly sandblasted before testing.
horizontal. After 1 h, check for sagging or running.
8.5 Steel Roller—A suitable 50 mm (2 in.) wide roller
9.5 Peel Strength Test:
weighing 4.5 kg (10 lb).
9.5.1 Roughen one side of a 25-mm (1-in.) rubber strip with
8.6 Steel Blocks, 165 mm (6 ⁄2 in.) long by 50 mm (2 in.)
a coa
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