Nitrate-based (common)
Often used for early strength support in ready-mix and precast. Selection depends on cement/SCMs and target performance.
Product Construction Chemicals
Concrete Accelerator (Non-Chloride)
Non-chloride accelerator used to support early strength development and/or faster set in concrete mixes (performance is mix and temperature dependent). Commonly specified where chloride-based accelerators are restricted.
Non-chloride
Early strength
Cold weather
Precast
Fast-track
Packaging: drums / IBC / bulk (liquid) • bags / supersacks (solid) — as applicable
Documentation: SDS / COA / TDS on request
Lead time depends on chemistry lane, concentration & volume
Commercial note: Accelerator selection is driven by your target (set time vs. early strength), cement type, ambient temperature, and compatibility with water reducers/superplasticizers. Share your mix design and constraints—this prevents under- or over-dosing and speeds up procurement.
What it does
Non-chloride accelerators are concrete admixtures formulated to improve early-age performance by increasing hydration rate and/or influencing set. Depending on chemistry, they can reduce initial/final set times, increase early compressive strength, and support earlier finishing and demolding. Results are strongly dependent on cement chemistry, SCMs (fly ash/slag/silica fume), temperature, w/c ratio, and other admixtures.
Early strength
Supports earlier demolding and cycle time reduction in precast and fast-track projects (mix dependent).
Cold weather
Helps maintain workable schedules when low temperatures slow hydration—use alongside proper curing practice.
Chloride-restricted
Chosen when chloride-based acceleration is limited (e.g., reinforced concrete or specification limits).
Typical projects
Precast elements, ready-mix in cold conditions, industrial slabs requiring earlier finishing, repairs/patching (grade dependent), and some shotcrete systems (alkali-free grades).
Key caveat
“Accelerator” can mean faster set, higher early strength, or both. Tell us your exact target (e.g., demold at 8 hours, finish earlier, strip forms sooner) so we can propose the correct lane and dose window.
This page is procurement-focused. Always validate on your materials through trials and follow the grade-specific SDS/TDS.
Applications
Typical usage patterns. Tell us your process and constraints and we’ll align the right specification.
- Precast production—cycle time reduction and earlier demolding (mix dependent)
- Cold weather concreting—helps offset slow hydration and set
- Fast-track construction—earlier finishing or earlier load opening (project dependent)
- Repair mortars and grouts—set/strength tuning (grade dependent)
- Shotcrete acceleration—using compatible non-chloride/alkali-free grades (system dependent)
Where it helps most
Projects where time is the constraint: early stripping, earlier finishing passes, earlier post-tensioning steps, or shortened curing windows. Share the bottleneck step and acceptance criteria.
Grade selection guide
Non-chloride accelerators come in different chemistry lanes. We match by your application and constraints.
Nitrite/nitrate blends
Sometimes specified where corrosion-inhibiting intent is combined with acceleration (project dependent; confirm requirements).
Shotcrete / alkali-free
Specialty accelerators for sprayed concrete systems—selected by equipment, rebound control, and set profile (system dependent).
Typical KPIs customers specify
- Target initial/final set time at given temperature
- Compressive strength at 8h / 1d / 3d
- Workability retention (slump loss control)
- Air content control (if air-entrained)
Common pitfalls
- Over-acceleration causing rapid set or finishing issues
- Incompatibility with PCE leading to slump loss
- SCM-rich mixes responding differently than OPC-only mixes
- Temperature swings not considered in dose planning
Typical specifications & formats
Values depend on grade and customer requirements. Confirm details on quotation.
Form
Liquid (common) or solid (powder/flake) depending on chemistry lane
Active content
Grade dependent (reported on COA)
Chloride
Non-chloride (confirm chloride limits on COA if required)
Appearance
Typically clear to pale/yellow liquid or white/off-white solid (grade dependent)
Packaging
Drums / IBC / bulk (liquid) • Bags / supersacks (solid) — as applicable
Documentation
SDS / COA / TDS on request
COA items commonly requested
- Active content (%), density (liquid) / assay (solid)
- pH (liquid, where applicable), appearance
- Chloride content/limit (if specified)
- Insolubles / moisture (solid, where applicable)
Selection inputs
- Cement brand/type + SCMs
- Temperature range + curing method
- Target set/strength timeline
- Admixture package (PCE/air entrainer)
Specifications may vary by lane, origin, and packaging selection. Always refer to the SDS/TDS for the exact grade supplied.
Supply, documentation & procurement lane
Procurement-ready supply with defined documentation, packaging options, and commercial routing.
Packaging options
Drums/IBC/bulk for liquids; bags/supersacks for solids. We align packaging to your dosing setup and site handling.
Quality documentation
SDS/COA/TDS on request. COA can include chloride limit and active content for compliance-driven projects.
Lane matching
We route to the best lane based on use case (ready-mix, precast, shotcrete), destination, and required standards.
To speed up quoting
Send your target set/strength timeline, cement type/SCMs, temperature range, and admixture package. We’ll respond with a recommended chemistry lane, packaging options, and a commercial offer with lead time.
Request quotation
Share your mix context and target timeline and we’ll propose a compatible non-chloride accelerator grade with a practical dosing window.
Technical inputs
Target set/strength timeline, cement/SCMs, temperature range, admixture package (PCE/air).
Quantity planning
Monthly/one-time volume, typical cement content, plant/site dosing setup, packaging preference.
Commercial inputs
Destination/Incoterms, documentation pack (SDS/COA/TDS), COA parameters and compliance limits.
Tip: If you have lab trial data or a target strength at 8h/1d, include it—this helps narrow the chemistry lane quickly.