JK-1: Rheology Modifier for Concrete
JK-1 is a water-based rheology control additive for concrete, mortar, grout, and other cementitious materials. JK-1 is suitable for use in ready-mix concrete, precast concrete, prestressed concrete, self-consolidating concrete, mortars, grouts, and other cement-based applications. JK-1 is compatible with polycarboxylate ether (PCE)-based superplasticizers and other conventional concrete admixtures and can be used in combination with other admixture technologies as part of concrete and mortar mix designs and production processes.
JK-1 is supplied as an aqueous solution and is typically used at low dosage levels relative to binder content. The admixture may be added during batching together with mixing water or other admixtures and can be incorporated into conventional concrete and mortar production processes.
| Registration number | EPD-IES-0034415:001 |
|---|---|
| Status | Valid |
| Version date | 2026-10-02 |
| Validity date | 2031-10-02 |
| PCR | 2019:14 Construction products (EN 15804+A2) (version 2.0.1) |
| c-PCR | 2019:14-c-PCR-017 Technical-chemical products (for construction sector) (c-PCR to PCR 2019:14) |
| Standards conformance | ISO 14025:2006, EN 15804:2012+A2:2019/AC:2021, ISO 21930:2017 |
| Geographical scope | Japan |