Conplast SP430 Price in Bangladesh

Description

Description:
Conplast SP430 is a chloride free, superplastic sing admixture based on selected sulphonated naphthalene polymers. It is supplied as a brown solution which instantly disperses in water

Conplast SP430 disperses the fine particles in the concrete mix, enabling the water content of the concrete to perform more effectively. The very high levels of water reduction possible allow major increases in strength to be obtained.

Uses:

• To provide excellent acceleration of strength gain at early ages and major increases in strength at all ages by significantly reducing water demand in a concrete mix.
•  Particularly suitable for precast concrete and other high early strength requirements.
• To significantly improve the workability of site mixed and precast concrete without increasing water demand.
• To provide improved durability by increasing ultimate strengths and reducing concrete permeability.

Advantages:

• Major increases in strength at early ages without increased cement contents are of particular benefit in precast concrete, allowing earlier stripping times.
• Makes possible major reductions in water: cement ratio which allow the production of high strength concrete without excessive cement contents.
• Use in production of flowing concrete permits easier construction with quicker placing and compaction and reduced l about costs without increasing water content.
• Increased workability levels are maintained for longer than with ordinary sulphonated melamine admixtures.
•  Improved cohesion and particle dispersion minimizes segregation and bleeding and improves pumpability.
• Chloride free, safe for use in prestressed and reinforced concrete.

Standards compliance:
Conplast SP430 conforms with BS 5075, BS: EN 934-2 and with ASTM C494 as Type A and Type F, depending on dosage used.

Technical support:
Fosroc provides a technical advisory service for on-site assistance and advice on admixture selection, evaluation trials and dispensing equipment. Technical data and guidance can be provided for admixtures and other products for use with fresh and hardened concrete.

Typical Dosage:
The optimum dosage of Conplast SP430 to meet specific requirements should always be determined by trial mixes using the materials and conditions that will be experienced in use. For high strength, water reduced concrete the normal dosage range is from 1.00 to 3.00 liters/100 kg of cementitious
material, including PFA, GGBFS and micro silica. For high workability concrete the normal dosage range is from 0.70 to 2.00 liters/100 kg of cementitious material.

Use at other dosages:
Dosages outside the typical ranges quoted above can be used to meet particular requirements. Contact Fosroc for advice.

Effects of overdosing
An overdose of double the amount of Conplast SP430 will result in an increase in retardation as compared to that normally obtained. Provided that adequate curing is maintained, the ultimate strength of the concrete will not be impaired by increased retardation and will generally be increased. The effects of overdosing will be further increased if sulphate resisting cement or cement replacement materials
are used.

Compatibility:
Conplast SP430 is compatible with other Fosroc admixtures used in the same concrete mix. All admixtures should be added to the concrete separately and must not be premixed together prior to addition. The resultant properties of concrete containing more than one admixture should be assessed by trial mixes. Conplast SP430 is suitable for use with all types of Portland cements, SRC cements and cement replacement materials such as PFA, GGBFS and microsilica. The use of a combination of admixtures in the same concrete mix and or cement replacements may alter the setting time. Trials
should always be conducted to determine such setting times.

Storage:
Conplast SP430 has a minimum shelf life of 12 months provided the temperature is kept within the range of 2°C to 50°C. Should the temperature of the product fall outside this range contact Fosroc for advice. Freezing point: Approximately -2°c.