The Most Tested Expansion Joints in the Industry
Polycrete II

Product Description

Polycrete II is an Elastomeric Concrete material specially engineered for patching or filling back man-made concrete trenches. Used in applications where placement of electrical conduit or  where concrete foundations or slabs exist.   

The material is an elastomeric blend that resists wear due to impacting of vehicular loadings and resists cracking at low temperatures. This makes this product ideal for placemn

Polycrete II outperforms traditional nosing materials, such as rigid epoxies, urethanes and asphalt. These materials historically showed breakdowns due to cracking and allowed moisture and salts to penetrate the concrete surrounding the expansion joint system.  The moisture and salt traveled down through the joint opening to the structure’s support members and resulted in premature deterioration of those members.

Polycrete II has a twenty-year track record of excellent performance.  It is one of two EMS materials that anchor its extensive line of expansion joint products.  The list includes applications with any of our winged series systems, including our Steel Strip Seal System and aluminum strip seal systems.

Used as a patching material on runways and tarmac areas. The Polycrete II material has been successfully used to retrofit runways with lights. Its’ uniform flow beneath and over the conduit, offers support to the conduit from below and protection from loads and chemicals from above.

Typically, the material hardens within an hour of the final pour, thereby allowing a minimal amount of down time of critical runway repairs. 

Physical Properties

The Polycrete II system consists of three (3) items: two resin components and pre-measured blended bag of aggregates.

The material is an ambient-cured mixture. The product (binder) meets the physical property requirements shown in Table 1.

Delivery and Storage

The two resin components of the Polycrete II are packaged in separate metal pails in a one-unit kit. The sand is pre-measured, weighed. Until use, all components should be left in their original, unopened containers and stored indoors. The material resins should be stored at temperatures between 40F and 90F. When properly stored, it has a shelf life of six months.

Table 1 – Physical Properties

Property                       Test Method                 Requirement

Tensile strength                 D 412                            600 psi

Elongation                         D 412                            25%

Hardness, Type D               D 2240                          50 min.

Impact, Ball Drop -20° F   D3029                         > 10 lf

Features and Benefits

  • Ideal for Rehabilitation Work –Used to quickly repair critical areas that need to be in operation.
  • Permanent Header System – The Polycrete II provides durability under vehicular loadings, unlike other cementitious and urethane look-alike products. Its elastomeric properties resist cracking, particularly in colder temperatures.

Installation

  • Prepare the receiver. It must be clean and dry.  Unsound concrete must be removed. Sandblast the area to remove laitance and contaminants. For protection, tape off the edges of the area to be repaired. This will make for a clean appearance once the material has been poured and cured.

Area Preparation-

Saw and chip all loose concrete. Leaving only sound concrete to bond to, sandblast all of the surfaces to receive the Polycrete II patching material.

Mixing Material and Finishing-

  The mix ratio of Part A to B is 1:1. After the two components are poured together, mix for about ten seconds. Slowly add the pre-measured sand and stone mix. Mix for approximately one minute, until there is an even gray color and no sign of streaks. Fill the void to the desired level.  The material is self-leveling. As the material begins to cure, lightly trowel to the desired finish.

PRODUCT DATA SHEET

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