CTS Rapid Set Concrete Mix
CTS Rapid Set Concrete Mix is a high-performance, fast-setting concrete repair mix made for general and structural concrete repair when time and durability matter. It’s a rapid-hardening concrete that mixes easily with water to produce a workable material for demanding jobs.
Use it for pavement and sidewalk repairs, formed work, footings, setting posts, industrial floors, and machine bases. It can be placed in thicker repairs where a standard bag mix isn’t the right fit, helping contractors complete structural repairs and get areas back in service quickly.
This concrete mix is designed for fast strength gain, high durability, and low shrinkage, and it performs well in wet environments. It conforms to ASTM C387 and ASTM C928 requirements for qualifying applications.
Features
- Fast-setting concrete mix for rapid repairs and construction.
- Sets in about 15 minutes for quick turnaround work.
- Ready for traffic in about 1 hour for minimized downtime.
- High early strength performance for structural repair needs.
- Easy to use on the jobsite—just add water.
- Multi-purpose mix for general and structural concrete repair.
- Durable in wet environments for tough repair conditions.
- Low shrinkage characteristics for more dependable repairs.
- Non-metallic formula for clean, reliable performance.
- No chlorides added to support corrosion-conscious work.
- Blend of Rapid Set hydraulic cement and quality aggregates for consistent results.
- Good workability to place, consolidate, and finish efficiently.
- Ideal for pavements, sidewalks, and slab repair projects.
- Great for formed work, footings, and post-setting applications.
- Suitable for industrial floors and machine base placement work.
CTS Rapid Set Concrete Mix Specifications
| Specification | Details |
|---|---|
| Product Type | High-performance, fast-setting, multi-purpose concrete repair material. |
| Primary Components | Rapid Set hydraulic cement blended with quality aggregates. |
| Wet Environment Durability | Durable in wet environments. |
| Chlorides / Metallic Content | Non-metallic; no chlorides added. |
| Set Time | Sets in 15 min. |
| Return to Service | Ready for traffic in 1 hr (varies by conditions). |
| Placement Thickness Range | 2 in to 24 in (5 cm to 61 cm). |
| Recommended Alternates for Thin Sections | For thinner sections, use Rapid Set Cement All or Rapid Set Mortar Mix. |
| Service Temperature Limitation | Not intended for extended exposure over 212°F (100°C). |
| Typical Uses | General and structural concrete repair; pavements; formed work; footings; setting posts; industrial floors; machine bases; airport and military pavement repairs. |
| Freeze-Thaw Durability | In some areas, contains an air-entraining admixture for freeze-thaw durability. |
| Substrate Requirements | Surface must be clean, sound, and free of bond inhibitors; roughen and remove unsound material; apply to saturated surface with no standing water. |
| Mixing Method | Power-driven mechanical mixer recommended (mortar mixer or drill-mounted mixer); use clean potable water; do not retemper. |
| Mix Water per 60 lb Bag (Critical/DOT) | 3.5 to 4.0 qt (3.3 L to 3.8 L) per 60 lb (27.2 kg) bag. |
| Mix Water per 60 lb Bag (General) | Max 4.5 qt (4.3 L) per 60 lb (27.2 kg) bag. |
| Workability Additives | For increased fluidity/workability, use Rapid Set FLOW Control; to extend working time, use Rapid Set SET Control or cold mix water. |
| Placement Notes | Place, consolidate, and screed quickly; eliminate air voids; do not wait for bleed water; may be troweled, floated, or broom finished; on flatwork, install full depth (no layers). |
| Application Temperature Range | 45°F to 90°F (7°C to 32°C). |
| Coating / Topcoat Timing | Water-based coatings (latex) after 4 hr (dry conditions); solvent-based/impermeable coatings (oil-based paint, epoxy) after 16 hr. |
| Curing Requirement | Water cure by keeping surfaces wet for a minimum of 1 hr; begin after hardening starts and before surface loses moist sheen. |
| Cold Weather Guidance | Below 70°F (21°C) can delay set and slow strength gain; keep materials warm, use heated mix water, follow ACI 306. |
| Hot Weather Guidance | Above 70°F (21°C) can speed set and strength gain; keep materials cool, use chilled mix water, follow ACI 305; SET Control helps in high temps. |
| Packaging | 60 lb (27.2 kg) bags. |
| Yield per Bag | Approx. 0.5 ft³ (0.01 m³) per 60 lb (27.2 kg) bag. |
| Shelf Life | 12 months when stored dry, protected from moisture, out of direct sunlight, and in undamaged packaging. |
| Environmental Advantage | Rapid Set cement production emits far less COâ‚‚ than portland cement (EPD/LEED info available from CTS). |
| Safety (Summary) | Do not breathe dust; avoid skin/eye contact; use ventilation and PPE (R-95/N-95/P-95 respirator, gloves, goggles); rinse exposed areas with water and seek medical attention if needed. |
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