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Why Delastic® seals?

Delastic®Pavement Seals for concrete pavement have one main purpose - to prevent water and debris from entering the joint. If that happens, the pavement can crack, chip, buckle and prematurely deteriorate.

Delastic® Pavement Seals are extruded from
compounds of neoprene (polychloroprene) which meet or exceed current ASTM standard specifications. They are
compressed and remain in contact with the joint walls
while allowing the concrete pavement to expand and contract during temperature changes.

There are other joint seal products available, but each has its disadvantages. Cold Pour type sealant can fail because of poor adhesion to the concrete walls. Hot pour asphalt systems do not age well and require the pavement joints to be resealed often, significantly increasing the overall cost.

Only Delastic® Pavement Seals have proven to remain durable and effective through the years.

 

 

 

 


Meeting Specifications
Delastic® seals meet ASTM standard specifications. They are also recognized by the IRC, MoRTH, MSRDC, NHAI, U.S. Army Corps of Engineers, the U.S. Air Force, consulting engineers and other agencies as an effective, long-lasting concrete pavement joint seal solution.



DELASTIC@ Advantages
Delastic® seals are the primary sealing system for concrete pavement slabs in highways, airport aprons and runways.

Delastic® seals offer these advantages:

  • Ability to seal joints in concrete even when moisture is present
  • Resistance to jet fuel and other chemicals
  • Speed of installation
  • Product cleanliness
  • Ease of inspection
  • Dramatic reduction in concrete joint spalling
  • Cost Effective

Delastic®
SEAL CHARACTERISTICS   JOINT DESIGN CRITERIA
Seal

Nominal
Width(W)
Nominal
Height(H)
Max. Movement
Narrowest Opening(A
Widest Opening(A)
Minimum Depth(B)
E-437
11.11
23.81
4.67
4.75
9.42
31.75
V-562
14.29
15.88
4.52
6.35
12.14
28.58
E-686
17.46
17.46
6.58
8.26
14.83
31.75
E-816
20.64
20.64
8.84
8.89
17.73
38.10
E-1006
25.40
25.40
11.43
10.16
21.59
44.45
E-1256
31.75
25.4
15.54
11.43
26.97
50.80
V-1625
41.28
28.58
19.84
15.24
35.08
60.33
E-2000
50.80
38.10
24.13
19.05
43.18
66.68
E-2500
63.50
63.50
27.94
19.69
53.98
101.60
E-3000
76.20
63.50
32.00
30.48
64.77
107.95
(All numbers shown represent mm)

DELASTIC® Installation
In all instances, the joint walls must be reasonably clean and free of spalls with a properly designed width. To facilitate seal installation, D.S. Brown offers its Delastall 106 installation machines.


Lubricants
Delastilube& and Delastilube™-HS are used during installation to lubricate the seal when it is inserted in the joint opening. The minimum installation temperature on job
sites should be 40"F (4°C) to assure proper performance of the lubricant.


Material Specification

For "E" and "V" series Delastic® seals, ASTM standard specification D 2628-97 applies. Delastilube™ lubricant meets ASTM D 2835 requirements while Delastilube-HS meets ASTM D 4070.


Packaging

Delastic® seals are shipped on reels, spools or in boxes marked in ordered lengths according to customer requirements. DelastilubeTM lubricant is supplied in one, five or 55 gallon containers.

ASTM D 2628 DELASTIC® PAVEMENT SEALS PHYSICAL REQUIREMENTS

  Properties


Requirements
ASTM Test
Method
  Tensile strength, min, psi (MPa)
2000 (13.8)
D 412
  Elongation at break, min, %
250
D 412
  Hardness, Type A durometer, points
55:t5
D 2240 (modified)A
  Oven aging, 70 h at 212°F (100°C)
  Tensile strength, loss, max, %
  Elongation, loss, max, %
  Hardness, Type A durometer, points change

20 max
20 max
0 to + 10
D 573



  Oil swell, ASTM Oil No.3, 70 h at 212°F (100°C)
  Weight change, max, %

45 max
D 471

  Ozone resistance
  20% strain, 300 pphm in air, 70 h at 104°F (40°G)

no cracks
D 1149 (modified)B

  Low-temperature stiffening, 7 days at WF (-10°C)
  Hardness, Type A durometer, points change

0 to+ 15

D 2240
  Low-temperature recovery, cn h at WF (-1Q°C)
  50% deflection, min, %

88

9.20
  Low-temperature recovery, C22 h at -20°F (-29°G),
  50% deflection, min, %

83

9.20
  High-temperature recovery, c70 h at 212°F (1   OO°G)
  50% deflection, min, %


85


9.20
  Compression-deflection, at 80% of nominal width,
  min, Ibf/in. (N/m)

3.5 (613)

9.30



Multiple Usage
  • Cement Concrete Roads
  • Runways / Taxiways
  • Overpasses / Underpasses
  • Parking Areas / Garages

 


Pavement Seal used at Madhuban
Chowk underpass, New Delhi

 



 
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