THORMA-JOINT_Data_Sheet_REV_1.20.pdf
PDF 482 KB Posted
- Attached to
- Competitive Selection OH|DOT10226-3
- Contract number
- DOT10226-3
- Issued by
- Ohio
About this file
This document is a product specification sheet for Thorma-Joint, an asphaltic plug expansion joint system manufactured by Dynamic Surface Applications, Ltd. (DSA), located in Pennsdale, PA. The document provides detailed technical information about the product, which was introduced to the US market in the late 1980s and is designed specifically for bridge engineers seeking a cost-effective joint system for low movement structures.
The Thorma-Joint system consists of BJ Super® polymer-modified asphalt binder, specifically graded 3/4" aggregate, A36 mild steel plate, and heat-resistant backer rod. The product is capable of withstanding up to 2" of cumulative movement and provides a watertight seal to protect bridge decks and substructures. Key technical specifications include precise aggregate gradation requirements, backer rod properties, and binder characteristics that meet ASTM D6297-13 standards. The product offers several advantages, including resistance to puncture, no metal armors that could come loose, smooth riding surface, no maintenance requirements, and a proven track record of installation since 1989 in the United States and since the late 1970s worldwide.
View the file
Other files
| File | Type | Posted |
|---|---|---|
| 102-26_pricing__03_13_25_DSA.xls | XLS spreadsheet | |
| TJ_Specification-NEW.pdf | ||
| SDS-BJ_Super.pdf | ||
| Signature__4___1___002___44_.pdf | ||
| 102-26_Specs__03_13_25_.pdf | ||
| 102__26__recommend_Award_Letter.pdf | ||
| Affirmation_and_Disclosure__2___2_.pdf |
On GovTribe
Work with this file
- Download the original file
- Contacts named in this file
- Similar government files
- Ask GovTribe AI about this file
Text version
Dynamic Surface Applications, Ltd.
373 Village Road
Pennsdale, PA 17756
800-491-5663 www.dsa-ltd.com
Why Thorma-Joint?
PRODUCT DESCRIPTION:
Thorma-Joint is the original asphaltic plug expansion joint system. Introduced to the US market by DSA, Ltd. in the late 1980’s, it continues to be first choice among bridge engineers seeking a cost effective reliable joint system for low movement structures.
Thorma-Joint is a combination of BJ Super® (a polymer modified asphalt binder), specifically graded ¾”aggregate, A36 mild steel plate and heat resistant backer rod. When installed properly and according to DSA’s specifications, Thorma-Joint is capable of withstanding up to 2” of cumulative movement and providing a water tight seal to protect the bridge deck and sub structure.
Resistant to puncture by foreign objects
Will not work its way out of joint cavity
Uses no metal armors that may come loose and endanger driver safety
Watertight and smooth riding
Requires no maintenance
Highly durable and proven track record
Installed in the United States since 1989 and throughout the world since the late 1970’s
Quality controlled installation by DSA or factory trained certified installers
All materials independently tested to ASTM D6297-13 standards
Certified Test Reports to be submitted for all materials
1 100
3/4 90-100
1/2 20-55
3/8 0-15
No. 4 0-5
No. 200 <0.5
TECHNICAL DETAILS
¾” Aggregate The stone used shall primarily consist of Granite, Basalt, Gabbro, Porphyry or Gritstones. The specified aggregate shall be crushed, double washed, and shall meet the following gradation requirements:
GRADATION
Sieve Size Percent Passing
Backer Rod
The backer rod shall be a closed cell, foam expansion joint filler, capable of withstanding the elevated temperature of the polymeric binder. The backer rod shall have the following typical physical properties using a 2” specimen and test method ASTM D5249:
Density: 2.0Lbs/Cu.Ft, min
Tensile Strength: 30 psi, min.
Compression: 5 psi @ 25%, min
Water Absorption: 0.03 g/cc by weight, min
(1% Max)
Temperature @ 410°F (210°C) No Melting
BJ Super® Binder
The bridge joint binder shall be a polymer modified asphalt, as manufactured by Dynamic Surface Applications, and shall meet the following requirements as set forth is ASTM D6297-13 and when independently tested according to those standards. The values below are the minimum requirements for ASTM D6297-13.
TEST METHOD MINIMUM
Cone Penetration @ 77°F ASTM D5329 `7.5 Max
Cone Penetration @ 0°F, ASTM D5329 1.0 Minimum
(ASTM D6297-13, 9.1)
Flow @ 140°F, 5 Hours, (MM) ASTM D5329 3.0 Max
Non-Immersed Bond @ 20°F, ASTM D5329 Pass 3 cycles
Three Cycles
Resilience @ 77°F ASTM D5329 40-70%
Asphalt Compatibility ASTM D5329 Pass
Softening Point ASTM D36 180 Minimum
Flexibility/Pliability @ -10°F ASTM D5329 Pass
(ASTM D6297-13, 9.2)
Ductility @77° F ASTM D113 400% Minimum
Tensile Adhesion @ 77°F ASTM D5329 700% Minimum
Recommended Pouring Temperature 370° - 385º F
Recommended Maximum Temperature 400° F
| Slide Number 1 |
| Slide Number 2 |
File details come from the government source that posted it. Updated .