TechTalk

The core Penetron crystalline technology is made up of fine chemically reactive powders that when mixed into or applied to concrete, reduce the permeability of concrete by reacting with the free lime ( a by-product of cement hydration) and water to produce insoluble crystals of additional hardened cementitious material, primarily calcium silicate hydrate.

A major advantage of Penetron over other additives, admixtures and pozzolanic cements is that this process of crystal growth is continuous for the life of the concrete and self-healing of new capillary tracts and micro cracks is ongoing.

Click here for a copy of the Penetron Precast Concrete Tank Manual

Above is an image of a completed precast concrete tank using Penetron products from the Penetron Precast Concrete Tank Manual. It shows the following tank elements:

1. Precast Panels
2. Standard Joints
3. Standard Corner Joints
4. Stitch Joints & Penetrations
5. Stitch Corner Joints
6. Slab, Slab Joints and Penetrations

Each element including the concrete itself (along with each joint) is waterproofed with a combination of Penetron products. This concept maximizes efficiency and durability by combining the structural element and the waterproofing element into one. The structural concrete is turned into a durable permanent water barrier. This waterproofing approach is permanent and does not require the use of costly membranes, which eventually fail and need to be replaced.

The end result is a permanently waterproof tank structure constructed from a superior concrete. This concrete is stronger, more durable and watertight to hydrostatic pressures. In addition this concrete protects the steel reinforcing from corrosion and has self-healing properties, which protect against future concrete micro cracking.