DESCRIPTION
AIR-ENCLOSING AGENT FOR CONCRETE
 
NVR is a stable solution of neutralized Vinsol resin for use in concrete air control, formulated under exact quality care, uniform in solid content and controlled Ph.
 
MAIN APPLICATIONS
 
 
Ready mixed concrete.
Structural concrete.
Mass concrete.
Concrete for floors and pavements.
outdoor concrete.
 
FEATURES / BENEFITS
 
 
Reduces segregation during its implementation giving greater homogeneity.
It highly reduces the surface water of the concrete.
The network of air bubbles stabilized in the mix, confer plasticity and cohesion.
The air in the mixture allows a reduction of the water in the mixture of up to 10%, achieving a concrete with greater resistance to compression.
It increases the impermeability, as a consequence it reduces filtrations, of great interest to prevent the attacks of aggressive waters.
It offers greater resistance to cycles of freezing and thawing, very important for concrete exposed to the elements in cold climates.
 
STANDARDS/SPECIFICATIONS

NVR meets or exceeds the specifications of the following standards:
 
 
Corps of Engineers Specification CRD-C-13.
Specification ASTM C-260.
AASHTO M-154 specification.
 
TECHNICAL INFORMATION

NVR is an aqueous solution composed of synthetic organic chemicals. It is compatible with concrete mixes containing calcium chlorides, water reducers, retarders and/or high range water reducers.
 
Appearance

NVR is an amber colored material which does not alter the natural appearance of concrete when added.
 
CONTAINER

NVR is available in 55 gallon tanks and 5 gallon pails.
 
HOW TO USE

NVR is used at a rate of ½ – 2 oz/100lbs (32-125 ml/100kg) of cement. In mixtures containing water reducers, we recommend half the amount mentioned above. The exact amount of NVR necessary for an air content is not constant because there are variations in the component materials of the concrete, however the dosages mentioned must provide 3% to 6% of air.
 
PRECAUTIONS/LIMITATIONS
 
Consult your local dealer for dosage adjustments if fly-ash or high-range water reducers are to be used.
If material freezes, bring material to 21°C and shake for 6-8 hours.
Add the product independently of other additives.