Churchill's are pleased to introduce a revolutionary waterproofing product to the UK.
The product is Evercrete
Vetrofluid® manufactured by an Italian company called ecoBETON, along with other products in their range Evercrete
Vetrofluid® has been successfully used across Europe & USA for
many years but has never been available in the UK until now, so what is Vetrofluid®?
Evercrete Vetrofluid® is a special waterproofing and anti-deterioration
product for concrete, its specific catalyst allows the product to penetrate up
to 40mm in concrete, both new & old, and to become a waterproofing barrier,
permanent and definitive in time. It is a permanent waterproofing system that
preserves concrete from the erosive action of water for the entire lifespan of
the artefact, it is recommended for application on underground artefacts, bed
castings, ceilings, above ground walls and earth retaining walls.
Evercrete Vetrofluid® is colourless and does not leave any films or foils on
the surface of the support. Consequently the concrete maintains its natural
aspect. It replaces all other technologies (bituminous membranes, water
repellent products, impregnating agents) and can be used on all sorts of
concrete artefacts and installations, both vertically and horizontally.
It is also effective in negative
pressure (up to 10atm), for waterproofing from within or for waterproofing when
building a retaining wall or a structure in contact with soil.
Evercrete
Vetrofluid®:
Characteristics
·
It is permanent and
definitive treatment
·
It penetrates up to
40mm into the concrete
·
It creates a
permanent and definitive waterproof barrier also in negative pressure (up to 10
atm)
·
It seals the
internal porosity of the concrete
·
It consolidates the
concrete
·
Applied on
foundations and bed castings it blocks rising damp
·
Resistant to chemical
aggression
·
It is
environmentally friendly non toxic, safe for humans and the environment
·
It has excellent
resistance to cycles of freezing and thawing and to de-icing salt aggression
·
It bears the CE
marked in conformity with the UNI EN 1504-2 (Certificate number GB08/76012
issued by SGS United Kingdom Ltd)
·
It is marked EPD
–Environmental Product Declaration. (Certificate number S-P-00143, www.environdec.com
What is
Waterglass?
Waterglass is a chemical
substance that has been known for centuries and since 1825, thanks to Johan
Nepomuk von Fuchs, the industrial production of water – soluble sodium
silicates has been analysed becoming known as ‘liquid glass’
(waterglass). Waterglass, or liquid glass, or soluble glass is nothing else but
sodium silicate (xSiO2 *Na2O), where the ration between sodium and silicate (x)
can vary between 0.50 and 3.75 on a molar basis. Soluble glass used for
applications on concrete has a x=3.25.
The chemical reaction
impregnates the porous in the concrete with liquid glass and leads to the
formation of a calcium silicate and lye based gel: Ca(OH)2 + Na2O * xSiO2 = 2Na (OH) + CaO
+ xSiO2
This reaction occurs thanks to
the presence of free calcium hydroxide present in the composition of the
concrete reducing the average pore section, sealing and protecting them from
water and deterioration phenomena.
Evercrete Vetroshield®, in the
same way as waterglass, reacts with the cement material triggering the
vitrification reaction: the pores and micropores in the concrete are sealed and
the concrete is waterproofed, while maintaining its breathability.
Consolidating
Treatment
·
Increases the
concrete’s a cortical compressive strength by 30%
·
Has a resistance in
the negative pressure of 1MPa – ca 10 atm
·
Resists without
being damaged to 300 freeze-thaw cycles
·
Reduces 70% of the
absorption of water under pressure
Treatment
Against Carbonation
Evercrete Vetroshield® is able
to prevent the carbonation phenomena and the detachment of the concrete cover
maintaining the concrete intact and preserved. In fact, the treatment blocks
the passage of moisture and carbon dioxide avoiding the triggering of
carbonation reaction
Anti Acid
Treatments
Evercrete Vetroshield® resists;-
·
To sulphuric,
nitric, hydrochloric acids
·
To acetic acid
·
To salts
·
To chlorides and
sulphates
·
To other acids of
organic origin
