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EVERDURE CALTITE

How Everdure Caltite works.

The EVERDURE CALTITE System was released in 1960, after an almost ten year research and development period. During this time, the primary moisture transport systems in concrete were examined and identified, along with the reasons for the disappointing performance of previous so-called "water-proofing" admixtures.

The System was originally developed for membrane-free waterproofing of concrete basements, roofs, swimming pools and other water retaining structures.

Because water is a required component in almost all types of concrete corrosion, it was soon proven to have particular application in aggressive salt , chemical, industrial and agricultural environments, where ordinary deteriorated rapidly.

Everdure CALTITE Concrete
repels water;
Water contact is limited to
extreme outer surface

CALTITE Concrete
under Hydrostatic Pressure

Everdure Caltite Concrete;
will not absorb water or contained salts or acids.

Ordinary Concrete
sucks in water;
Water and salts are absorbed
deep into the matrix

Ordinary Concrete
under Hydrostatic Pressure

Normal concrete readily absorbs
water & salts deep into the matrix

EVERDURE CALTITE is a integral Hydrophobic and Pore-blocking Ingredient (HPI) for inclusion in the structural concrete, which reverses capillary "wick" or sucking action, as well as providing a physical pore-blocking component when subjected to hydrostatic pressure. A high range water reducing compound, Cementaid SUPERPLASTET, is also used to reduce w/c ratio, as well as optimise workability.

The result is non-absorptive and moisture-impervious, inherently dry concrete, permanently protected from water ingress, and proofed against soluble salt and acid attack.

EVERDURE CALTITE has been shown to be highly effective, even in some of the world's most severe environments. Its record of more than 37 years under conditions of extreme chloride and sulphate exposure with no significant deterioration, is unique.

EVERDURE CALTITE is the extra ingredient in concrete, (in addition to cement, aggregate and water) which profoundly reduces both absorption and pressure-permeability, as well as providing corrosion inhibition over the long-term.

EVERDURE CALTITE effectively replaces the need for coatings to the concrete or steel or other methods of waterproofing and durability enhancement.

How EVERDURE CALTITE Works

The Everdure Caltite System is practical and easy to use. As with all good quality concrete, we recommend careful application to the highest possible standards for best results. Refer to the Technical Specification.
The EVERDURE CALTITE SYSTEM optimises basic concrete density, *** using a minimum ordinary portland cement (OPC) content of 350 kgs per cubic metre, (or 595lbs or cubic yard), and a maximum water:cement ratio of 0.45, to provide a concrete of reasonably low porosity. (For minimum OPC contents using blended cements, contact Cementaid).
The EVERDURE CALTITE SYSTEM uses two specialised ingredients which modify concrete properties, to achieve truly effective watertightness and damproofing, as well as extreme corrosion resistance:-

The first is SUPERPLASTET, a highly effective, slump-retaining superplasticiser, which greatly reduces the batching water requirements, thus controlling the volume of the capillary network in the concrete. SUPERPLASTET also improves the concrete's workability, to assist placing and proper compaction.

The second is Cementaid CALTITE, ** a unique liquid ** Hydrophobic and Pore-Blocking (HPI) ingredient, which is dosed at the rate of 30 litres per cubic metre of concrete. CALTITE has two distinct waterproofing actions:

The first is a reaction of the hydrophobic components within Everdure Caltite, fundamentally changing the surface tension of the cement hydrates and capillary surfaces. This produces a permanently modified concrete matrix and capillary system, which is intrinsically water-repellent and non-ansorptive throughout its entire mass.

In a second action, discrete polymer globules moving with the bleed water, collect in the capillaries. When the hardened concrete is subjected to water under pressure, these globules coalesce to form a physical "plug", blocking the capillary and preventing ** further water entry.

The EVERDURE CALTITE System also includes service by technical representatives of Cementaid during necessary trial mixes at the batching plant, to help ensure correct dosage and to monitor concrete quality.

The EVERDURE CALTITE System was released in 1960, after an almost ten year research and development period. During this time, the primary moisture transport systems in concrete were examined and identified, along with the reasons for the disappointing performance of previous so-called "water-proofing" admixtures. The System was originally developed for membrane-free waterproofing of concrete basements, roofs, swimming pools and other water retaining structures. Because water is a required component in almost all types of concrete corrosion, it was soon proven to have particular application in aggressive salt , chemical, industrial and agricultural environments, where ordinary deteriorated rapidly.	Everdure CALTITE Concrete repels water; Water contact is limited to extreme outer surface CALTITE Concrete under Hydrostatic Pressure Everdure Caltite Concrete; will not absorb water or contained salts or acids.	Ordinary Concrete sucks in water; Water and salts are absorbed deep into the matrix Ordinary Concrete under Hydrostatic Pressure Normal concrete readily absorbs water & salts deep into the matrix
EVERDURE CALTITE is a integral Hydrophobic and Pore-blocking Ingredient (HPI) for inclusion in the structural concrete, which reverses capillary "wick" or sucking action, as well as providing a physical pore-blocking component when subjected to hydrostatic pressure. A high range water reducing compound, Cementaid SUPERPLASTET, is also used to reduce w/c ratio, as well as optimise workability. The result is non-absorptive and moisture-impervious, inherently dry concrete, permanently protected from water ingress, and proofed against soluble salt and acid attack. EVERDURE CALTITE has been shown to be highly effective, even in some of the world's most severe environments. Its record of more than 37 years under conditions of extreme chloride and sulphate exposure with no significant deterioration, is unique. EVERDURE CALTITE is the extra ingredient in concrete, (in addition to cement, aggregate and water) which profoundly reduces both absorption and pressure-permeability, as well as providing corrosion inhibition over the long-term. EVERDURE CALTITE effectively replaces the need for coatings to the concrete or steel or other methods of waterproofing and durability enhancement.