Long-distance ready-mix transport
For projects where delivery time creates a larger-than-acceptable loss of workability.
Slump-retaining grade · solid flake
ZJ-PCE102 Slump-Retaining PCE Flake
A delayed-release polycarboxylate superplasticizer flake for extended workability, long-distance transport, hot-weather placement and PCE blending.
2–4 h retention97% solids25 kg bags
ZJ-PCE102 · SLUMP-RETAINING TYPEControlled release for longer workability
ZJ-PCE102 is described as having moderate initial cement dispersion and sustained slump-retention performance. The supplied technical sheet states a 2–4 hour retention window, making it suitable for evaluation where transport time, ambient temperature or extended placement increases slump-loss risk.
The grade is also intended for blending with water-reducing flake-form PCE, especially when the concrete materials contain higher powder or clay levels. Initial and later-age workability must both be tested with the actual cementitious system.
ZJ-PCE102 specification
| Appearance | White to light-yellow flakes |
|---|---|
| Solid content | 97.0 ± 1.0% |
| Prepared mother-liquor solids | 50% |
| pH value | 4.0 ± 1.0 (40% aqueous solution) |
| Chloride content | ≤0.1% on solids basis |
| Stated slump retention | 2–4 hours |
| Reference dosage | 0.1–0.5% of total cementitious material, on solids basis |
| Packaging | 25 kg composite bag; other packaging by agreement |
| Shelf life | 12 months under stated storage conditions |
Values are based on the supplied product technical sheet and manufacturer-confirmed formulation information. Retention time is application-dependent and must be verified through timed concrete trials.
Where ZJ-PCE102 is evaluated
Hot-weather concreting
For timed trials under elevated temperatures that accelerate slump loss and change setting behavior.
Mass and hydraulic concrete
For extended placement windows in pumped, self-compacting, precast, mass or hydraulic concrete.
Blend to the required retention curve
- • ZJ-PCE102 is recommended for blending with water-reducing flake-form PCE such as ZJ-PCE101.
- • The flakes may be dissolved to prepare a mother-liquor solution with 50% solids for downstream formulation.
- • Start within the stated 0.1–0.5% solids-basis range and test initial slump plus the complete required retention period.
- • A small amount of set-control admixture may be evaluated where adjustment of setting time is needed.
- • Do not blend with naphthalene-based superplasticizers; verify compatibility with every other admixture before use.
Storage and purchasing information
Store dry and ventilated at 2–35°C, protected from direct sunlight and rain. Keep separated from other admixture types. Material beyond the 12-month shelf life should be retested before use.
Include with your inquiry
Transport time, ambient temperature, initial and target slump, cement and SCMs, current water reducer, clay or powder content, quantity and destination.