For architects, contractors, engineers, DOT personnel, and other professionals who work on residential, commercial, industrial, or infrastructure projects.
Products
Innovative, high-performance products for new construction, repairs and restoration.
Applications
Proven product solutions and resources for projects of any size, in any market.
Resources & Support
Professional resources designed to enhance your expertise.
Find A Dealer
Where to purchase Rapid Set® and Komponent® products.
For homeowners and do-it-yourselfers who like to DIY.
Professional-grade products for new construction, repairs and restoration.
How To's
Inspiration for your concrete projects — from repairs and restoration to decorative and fun.
Concrete Basics
Useful resources that help you become more knowledgeable about cement and concrete.
Find A Store
Where to purchase Rapid Set® products.
From A to Z
Alphabetical listing of Rapid Set® and Komponent® products
By Category
Innovative, high-performance products for repairs and restoration, flooring, grouting, pavements and overlays, stucco, shotcrete and fill, shrinkage compensating cement, sealants and adhesives, and additives.
CSI MasterFormat Divisions
CTS products organized by CSI MasterFormat subgroups and divisions.
We’re a close-knit group of employee-owners who are grateful for our customers, and the opportunity to provide the industry with innovative products and exceptional service.
Our Story
With hard work and loyal customers, one repair and restoration product has grown into well over 70 building material products.
Brands
Rapid Set® cement products, made with calcium sulfoaluminate (CSA) cement technology. Komponent® shrinkage-compensating concrete products, made with Type K cement technology.
Innovative Technologies
Learn about the speed, strength, and sustainability of Rapid Set cement products, and way to minimize cracking and reduce joints and curling with Komponent.
Leadership
We’re the leadership team who is inspired by the mindset, work ethic, and integrity of our employee-owners.
Careers
We’re looking for the right people to join us. Perhaps that’s you.
FREQUENTLY ASKED QUESTIONS
System-K is a patented shrinkage-compensating concrete slab solution that provides a cost-effective approach to non-structural slab designs commonly specified for warehouses, distribution centers, offices or laboratory areas, retail or other "light duty" environments. It is commonly specified in topping slabs for renovation or rehabilitation projects. It combines the Komponent shrinkage-compensating cement additive and synthetic 1/4 inch microfibers known as K-Fibers with portland cement, to create a microfiber reinforced concrete slab that only requires rebar reinforcement at the perimeter of the slab and at reentrant corners.
Yes. ACI 223 - Guide for the Use of Shrinkage-Compensating Concrete and various ASTM standards (i.e., ASTM C845, ASTM C806 and ASTM C878) are available to guide engineers, design professionals, construction teams, and testing labs in the design, specification, performance and installation of Type K shrinkage-compensating cement concrete and non-shrink grout.
System-K shrinkage-compensating cement concrete is suitable for use in non-structural slab designs like warehouses, distribution centers, offices or laboratory areas, retail or other "light duty" environments. It is commonly specified in topping slabs for renovation or rehabilitation projects.
System-K shrinkage-compensating concrete offers exceptional flexibility in design and joint spacing. With L:W ratios up to 3:1 and floor slab joint spacing commonly up to 130 feet with no control joints.
Perimeter steel and traditional rebar reinforcement at re-entrant corners is recommended with these microfiber reinforced slabs. This provides protection against cracks that can occur at a floor slab/wall interface and commonly widen over time. The perimeter reinforcement helps hold any incidental cracks that may occur tightly together.
System-K offers every design and construction team the most reliable method of minimizing or eliminating drying shrinkage cracking and unsurpassed dimensional stability (eliminating curling, minimizing creep and moment, etc.). It cannot, however, overcome poor installation practices, insufficient structural design, or inadequate mix designs. ASTM C878 should be run on all mix designs to ensure dosages will meet performance requirements.
System-K uses the Komponent additive, which is based on an advanced CSA cement chemistry. It improves both compressive and flexural strengths. Typically, strengths are improved by approximately 10-15% depending on the mix design used.
K-Fibers are provided in 2.2-lb disposable bags. They are simply added directly into the rotating truck barrel before the portland cement, Komponent, or other supplementary cementitious materials are added. Mixing the K-Fibers into the drum with the aggregates helps evenly disperse the microfibers throughout the mix and ensures they disappear into the concrete.
No. The "hairy" concrete phenomenon is commonly experienced with the use of macrofibers (larger, stringy strands). The microfibers will literally disappear into the concrete.
System-K is available nationwide and internationally. It is sold direct to market. Interested customers can contact our corporate office or a member of our Engineering Sales Team, and we will help facilitate the order.
System-K is comprised of Komponent, which is available in bulk rail or tanker trucks, 2000-lb super sacks, 90-lb bags and 50-lb bags, and K-Fibers, which are provided in 2.2-lb disposable bags.
