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Concrete Retarding Admixtures (MNC-BS)
Product Name: Concrete Retarding Admixtures (MNC-BS)
Type: MNC-BS
Package: 25kg/bag

Concrete Retarding Admixtures


■ Description

MNC-BS is made of selected corn starch and is a commonly used retarding agent in construction materials. 
MNC-BS is suitable for high temperature, long haul, and pumping concreting. It’s also applied in mass concrete, self-leveling concrete and high strength concrete.It complies with ASTM C 494, Type B.

■ Typical Advantages

■ High workability, no segregation, no water bleeding.
■ Improve the concrete breaking strength, tensile strength, elastic modulus and adhesiveness to the steel bar.
■ Improve concrete durability performance, such as anti-seepage, anti-freezing and anti-carbonization.
■ Avoid cement initial hydration, extending cement and concrete setting and retaining time.
■ Non-toxicity, non-inflammable, non-corrosion to the steel bar.

■ Application range
It's widely applied in concrete requiring extended setting time, mould concrete and mass casting concrete.
It can be applied as a retarding component for producing retarding superplasticizer.
Compatible with Naphthalene Superplasticizer, Amino Sulfuric Acid Superplasticizer and Air-entraining Agent.

■ Typical Properties



Visual Appearance

White or Yellowish Crystal Powder

Loss on drying (%)

0.5 Max

Purity (%)


Reducing Substances (%)


Heavy Metal (Pb), ug/g


Sulfate Content, %


Chloride Content, %


Lead, ug/g

Arsenic, ug/g

pH Value


■ Package, Storage & Handling
1.It's packed in fabric bag with plastic liner. Net weight: 25kg /- 0.13 kg.
2.Cautions should be taken to avoid moisture and water while being delivered or storaged, since it's soluble in water.
3.It should be stored in a dedicated warehouse that is well-ventilated and dry.
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