Product Data Sheet Show all documents

Sika® Plastiretard TM 100 C2 WR PK

Set-retarding admixture.

Sika® Plastiretard TM 100 C2 WR PK is a set-retarding admixture that can be used with any type of concrete, screeds and mortars.

Effects on Fresh Concrete Plastiretard exerts a beneficial physicochemical action on fresh concrete, offering the following advantages:
  • It improves workability even when the amount of mixing water is reduced.
  • It delays the onset of cement hydration, resulting in extended setting times and prolonged concrete consistency. This allows the concrete to retain its fluidity for the duration required for proper placement.
  • It delays and distributes the heat release associated with cement hydration, thereby reducing the risk of thermal stresses.
Effects on Hardened Concrete The use of Plastiretard also provides significant benefits to hardened concrete:
  • It improves mechanical strength development.
  • It increases concrete compactness and watertightness.
  • It reduces shrinkage and creep, contributing to enhanced long-term durability.
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Product Data Sheet Show all documents

Usage

Concreting in Hot Weather Plastiretard provides an effective set-retarding action that prevents a sudden rise in concrete temperature during setting. Its use becomes particularly essential:
  • When ambient temperatures are high
  • In large-mass concreting works such as dams and other massive structures
This controlled retardation helps reduce the risk of thermal cracking and ensures uniform setting. Concreting Rework The extended set-retardation effect of Plastiretard allows concreting operations to be resumed even after several hours of interruption. Reworking can be carried out without special precautions, provided that the concrete surface is adequately protected against drying. Long-Distance Concrete Transportation Plastiretard enables safe and trouble-free transportation of concrete over long distances. It maintains workability and setting control under varying conditions, including:
  • High temperatures
  • Delays caused by traffic congestion
This makes it ideal for ready-mix concrete operations and remote construction sites.   Improvement of Workability As a retarding plasticizer, Plastiretard significantly improves concrete workability and placement. It is particularly recommended:
  • When enhanced workability is required
  • For pumped concrete applications
  • For as-stripped (architectural or fair-faced) concrete where surface finish is critical

Advantages

Effects on Fresh Concrete Plastiretard exerts a beneficial physicochemical action on fresh concrete, offering the following advantages:
  • It improves workability even when the amount of mixing water is reduced.
  • It delays the onset of cement hydration, resulting in extended setting times and prolonged concrete consistency. This allows the concrete to retain its fluidity for the duration required for proper placement.
  • It delays and distributes the heat release associated with cement hydration, thereby reducing the risk of thermal stresses.
Effects on Hardened Concrete The use of Plastiretard also provides significant benefits to hardened concrete:
  • It improves mechanical strength development.
  • It increases concrete compactness and watertightness.
  • It reduces shrinkage and creep, contributing to enhanced long-term durability.

Packaging

05 ltr jerry can
20 ltr plastic can
200 ltr drum
1000 ltr IBC
Bulk supply in tanker is possible on demand

Colour

Light brown to brown Liquid

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

Complies with EN 934.2 tab. 8
Product Information

Chemical Base

Organic Polymer blend.

Shelf Life

12 months shelf life from date of production if stored properly in undamaged, unopened, original sealed packaging.

Storage Conditions

Storage at temperatures between 5°C and 30°C. Protect from direct sunlight, frost and contamination.

pH-Value

≥ 4

Specific gravity

1.07 ± 0.02 at 23°C ± 2

Application

Consumption

Recommended Dosage

0.2 - 2 % by weight of cement, it is adviseable to carry out trial mixes to establish the exact dosage weight required. Different dosages beyond the defined limits can also be used but trial mixes are mandatory prior to application. 

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