The patented PREVent-C® technology by the Construction
Products Group (CPG) of Premier Magnesia
is a shrinkage-reducing and crack-control concrete admixture. It is a specially
formulated powder that provides dual functionality to prevent cracking or
curling caused by shrinkage. Shrinkage-induced cracking may be reduced by as much as 90%, depending on mix design and
amount of PREVent-C utilized.
PREVent-C can be used in all types of concretes and
mortars, whether cast-in-place, mass, precast or pre-stressed, and can be used
in straight Portland cement mixes or blended cement mixes. It reduces autogenous
shrinkage to minimize water and salt infiltration, decreases curling and
related cracks, reduces compressive creep, and improves durability.
The
use of PREVent-C in a variety of applications has shown to reduce repair and
maintenance time and costs, as well as increase life expectancy and perceived
value of structures. Its uses include dams, wastewater treatment plants, bridge
decks, shotcrete, pools and marine structures, secondary containment, and
airport.
PREVent-C products are covered by U.S. Patent Number 8,784,558 issued July 22, 2014 entitled Admixtures for Shrink Crack Reduction of Portland Cement-Based Mortars and Concretes as well as a variety of pending foreign patent applications throughout the world.
PREVent-C products are covered by U.S. Patent Number 8,784,558 issued July 22, 2014,
entitled Admixtures for Shrink Crack Reduction of Portland Cement-Based
Mortars and Concretes as well as a variety of pending foreign patent
applications throughout the world.

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