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Sika® ViscoCrete®-381 PH

Powered by Viscocrete® Mid range superplasticizer and long slump keeping

Sika® ViscoCrete®-381 PH is the latest development superplasticizer for concrete. It meets the requirements for high range water reducing superplasticizers according to ASTM C494 Type G.

Sika® Viscocrete® 381 is a powerful superplasticizer and long slump leeping based on
advanced technology which gives the following advantages:
  •  Strong water reduction, resulting in high density, high strength and reduced permeability
  •  Less sensitive against variations in aggregates and / or different cement types
  •  High efficiency even at low dosage rates
  •  Extended workability in conjunction with subsequent strength development
  •  Superior plasticizing effect, resulting in improved flow, placing and compaction characteristics
  •  Reduced shrinkage during curing and reduced creep when hardened
  •  Provides many opportunities for cost improvement e.g.:
   - Cement replacement/reduction    - More economic mix design Sika® ViscoCrete®-381 PH does not contain chloride or any other ingredients whichpromote the corrosion of steel. It is therefore suitable for use in reinforced and prestressed concrete structures.
Product Data Sheet Show all documents

Usage

Sika® ViscoCrete®-381 PH  is a unique multipurpose superplasticizer that is particularly suitable for the production of ready-mix concrete. Additionally it provides high water reduction and improved fresh concrete characteristics. With its outstanding cost/performance Sika® ViscoCrete®-381 PH is used for the following:
  •  A wide range of application where excellent    
   workability is requested
  •  Concrete with high water reduction
  •  High efficient concrete applications
  •  Variable use in different concrete systems with different raw materials
 

Advantages

Sika® Viscocrete® 381 is a powerful superplasticizer and long slump leeping based on
advanced technology which gives the following advantages:
  •  Strong water reduction, resulting in high density, high strength and reduced permeability
  •  Less sensitive against variations in aggregates and / or different cement types
  •  High efficiency even at low dosage rates
  •  Extended workability in conjunction with subsequent strength development
  •  Superior plasticizing effect, resulting in improved flow, placing and compaction characteristics
  •  Reduced shrinkage during curing and reduced creep when hardened
  •  Provides many opportunities for cost improvement e.g.:
   - Cement replacement/reduction    - More economic mix design Sika® ViscoCrete®-381 PH does not contain chloride or any other ingredients whichpromote the corrosion of steel. It is therefore suitable for use in reinforced and prestressed concrete structures.

Packaging

210 Liter Drum, 1000 Liter Bulk Tank

Product Details

Product Information

Chemical Base

Polycarboxylate ether

Shelf Life

12 months from date of production if stored in unopened and undamaged original sealed container

Storage Conditions

Protect from moisture at temperature between +5 oC and +30 oC

Density

approx. 1.04 kg/L

Application

Application Information

Dispensing

Sika® ViscoCrete®-381 PH is added to the gauging water or added with it into the concrete mixer. To take advantage of the high water reduction, a wet mixing time, which is depending on the mixing conditions and mixer performance, of at least 60 seconds is recommended. To avoid excess water in the concrete, the final dosage must begin only after 2/3 of the wet mixing time.
Consumption

Recommended Dosage

0.8% - 2.0% by weight of total cementitious binder
Application steps

APPLICATION INSTRUCTIONS

The standard rules of good concreting practice, concerning production and placing, are to be followed. Laboratory trials shall be carried out before concreting on site, especially when using a new mix design or producing new concrete components. Fresh concrete must be cured properly and curing applied as early as possible.

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