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The Seattle Iron & Metals scrap metal yard is subject to extreme abrasion from bucket loaders feeding an automobile shredder. In 1999, the existing site was paved with 3 inches of asphalt capped with 12 inches of standard concrete pavement. Railroad tracks were set into the concrete so that loader buckets would rest on the track instead of wearing on the concrete. After five years, the 12 inches of concrete had worn through exposing the asphalt. BNBuilders and Cadman devised a plan to replace 21,000 square feet with a slab that would provide greater abrasion resistance.
The new slab was made with high-strength and low-shrinkage self-consolidating concrete. Hard-Cem was also added at the Cadman batch plant to provide abrasion resistance. The full depth concrete hardening ability of Hard-Cem makes it the logical solution for concrete in high-traffic and high-wear (high abrasion) environments. Everyone involved in the project was very impressed with the superior finishability and placeability of the Hard-Cem concrete. Hard-Cem is fully compatible with most concrete admixtures and Supplementary Cementing materials and worked well in this project’s SCC/fiber mix. This project received the 2006 Excellence in Concrete Award for concrete paving from the Washington Aggregate & Concrete Association. Hard-Cem Integral Concrete Hardener is a proven technology that will maintain the integrity of concrete relative to abrasion and erosion. It is unique in its ability to enhance the integrity of air-entrained and non-air entrained concretes. Hard-Cem provides significant advantages for projects needing enhanced durability including: paving, bridges, parkades, industrial floors, precast pipe, dams, spillways, stilling basins, and erosion control structures.
Hard-Cem is an Integral Hardening Admixture used to increase Abrasion and Erosion resistance of concrete. Hard-Cem is added to the concrete at the time of batching to increase the hardness of the concrete and extend concrete wear life. It outperforms and overcomes deficiencies of labor intensive surface applied hardeners, and is used to enhance durability...
