Construction Additives
Retarding Agent · Set Retarders

SODIUM GLUCONATE

Delays cement setting and improves workability retention in hot climates and long-haul ready-mix applications, giving crews a wider window to place, finish, and pump concrete before it sets.

Set Retarders
Appearance Tan powder
Assay ≥ 98%
Typical dosage 0.1 – 0.3%
Set delay 1 – 4 hrs
01

How the Delay Mechanism Works

STEP 1 — CHELATION

Binds Free Calcium Ions

Sodium gluconate chelates calcium ions released during early cement hydration, reducing their immediate availability to form set-driving compounds.

STEP 2 — DELAY

Slows Hydrate Formation

With calcium temporarily bound, the formation of calcium silicate hydrate and ettringite is slowed, extending the plastic and workable stage of the concrete mix.

STEP 3 — RELEASE

Normal Set Resumes

As the dosage is gradually consumed, chelation subsides and cement hydration proceeds normally, allowing the mix to set and develop strength on a controlled schedule.

02

Technical Specifications

Chemical Name
Sodium Gluconate
Function
Retarding Agent
Appearance
Tan to Off-White Free-Flowing Powder
Assay
≥ 98%
Solubility
Fully Soluble in Water
pH (10% Solution)
6.5 – 8.0
Recommended Dosage
0.1 – 0.3% by Weight of Cement
Typical Set Delay
1 – 4 Hours (Dosage Dependent)
Shelf Life
24 Months (Unopened, Cool & Dry Storage)
Packaging
25 kg Bag  •  500 kg Bulk Bag  •  Bulk Tanker (Liquid)
03

Application Systems

READY-MIX

Long-Haul Ready-Mix Concrete

Maintains slump and workability during extended transport, ensuring consistent concrete performance before placement.

HOT WEATHER

Hot-Weather Concreting

Offsets accelerated cement hydration caused by high ambient and concrete mix temperatures, extending workable time.

MASS POURS

Large-Volume & Mass Concrete

Reduces the risk of cold joints during large or continuous concrete placements by providing controlled setting.

ADMIXTURE BLENDING

Liquid Admixture Formulation

Used as a key component in multi-functional liquid concrete admixture packages for improved performance and flexibility.

04

Handling & Storage

Storage Information

Storage Temperature 5°C – 30°C
Storage Condition Sealed, Dry & Away from Direct Sunlight
Mixing Dissolve in Gauging Water or Add to Batch Water
Overdosing Risk Excessive Dosage Can Cause Extended Set Delay

Safety & Documentation

Compatibility Most Portland Cement Systems
Personal Protection Refer to Safety Data Sheet (SDS)
Transport Classification Non-Hazardous (Refer SDS)
Documentation TDS & SDS Available on Request
Request a sample or the full technical data sheet

Our team can advise on the right grade for your stone type and exposure.

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