The existing concrete floor had been abused for years with the use of heavy-tracked armored vehicles and related tools and equipment used in routine maintenance.
It was time for the floor to be replaced with a good, hardened surface.
The floor must provide a high-quality abrasive- resistant surface that will withstand the use of Military armour-wheeled and track vehicles while at the same time, adding no significant cost increase to the owner.
The existing slab was removed and proper procedures were carried out for the sub-base preparation including drainage, soil compaction and rebar placement. Then placement of new concrete with HARD-CEM integral concrete hardener.
HARD-CEM is engineered to provide concrete with superior hardness and improved durability for demanding construction projects. HARD-CEM is unique in its ability to enhance the integrity of air- entrained and non air-entrained concretes.
HARD-CEM is a concrete hardener developed for ready-mix and pre-cast concrete applications. Unlike surface applied hardeners which are labor intensive, problematic for quality control and unsuitable for air-entrained concrete. HARD-CEM is added to the concrete mix during the batching operation. HARD- CEM is the only hardener of its kind that can be utilized in air-entrained concretes.
Standard ASTM abrasion tests have shown HARD- CEM to reduce the mass loss associated with abrasion by up to 66% compared with non-hardened concrete control sample.
HARD-CEM provides concrete advantages for industrial, transportation and water resources applications requiring enhanced hardness and durability including: paving, bridges, parkades, industrial floors, precast pipe, dams, spillways, stilling basins and erosion control structures. HARD-
CEM can significantly extend the life of standard concrete. HARD-CEM is a functional filler additive
(not a chemical admixture) which can be used in any concrete mix composition with no effect to the concrete qualities such as air-entrainment.
Project: Building K-17, Armored Vehicle Service Bays
Location: CFB Base Gagetown
Date Installed: July 2008
Product / System: HARD-CEM Integral Concrete Hardener
Owner: Department of National Defense
Designer: 3 ASG Engineer Branch
Contractor: Bluestone Contractors Ltd & Concrete – Northside Ready Mix