Strusin PLS22

High-Range Water Reducing Admixture, Based on Polycarboxylate - lignosulphonate

Strusin PLS22 is differentiated from conventional superplasticizers in that it is based on a unique carboxylic ether polymer with long lateral chains and lignosulphonates. This greatly improves cement dispersion. At the start of the mixing process electrocstatic dispersion occurs but the presence of the lateral chains, linked to the polymer backbone. Generate a steric hindrance which stabilizes the cement particle’s capacity to separate and disperse. This mechanism considerably reduces the water demand in flowable concrete.

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Uses

Specifically developed for use in high quality concrete for workability retention at low water content.
Provides good pumpable concrete
Recommended for piling and mass concrete pours with improved cohesion.

Advantages

High range water reducing property allows the production of high quality concrete without excessive cement contents-ensures improved durability.
Improved cohesion and particle dispersion minimizes segregation and bleeding and improves pumpability.
Chloride free, safe for use in precast, prestressed and reinforced concrete.

Standards compliance

Strusin PLS22 conforms with BS 5075 Part 3 and with ASTM C494 as Type A and Type F, depending on dosage used.

Properties

Appearance

Brown Liquid

Specific gravity

1.20 ± 0.02 gr/cm3 at 20°C

Chloride

Nil to BS5075

Air entrainment

Typically less than 2% additional air is entrained at normal dosages.

Instructions for use

Compatibility: Struplast PLS22 is compatible with other STRUMIX admixtures in the same concrete mix. All admixtures should be added to the concrete separately and must not be premixed together prior to addition. The performance of concrete containing more than one admixture should be assessed by trial mixes.
Struplast PLS22 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.

Packaging & Storage

Struplast PLS22 is available in 20 kg containers, 240 kg drums and 1100 kg IBC tank.
Struplast PLS22 has a minimum shelf life of 12 months provided the temperature is kept within the range of 5°C to 35°C. Should the temperature of the product fall outside this range then contact STRUMIX for advice.
Freezing point: Approximately -2°C

Health and safety

Struplast PLS22 does not fall into the hazard classifications of current regulations. However, it should not be swallowed or allowed to come into contact with skin and eyes. Suitable protective gloves and goggles should be worn. Splashes on the skin should be removed with water. In case of contact with eyes rinse immediately with plenty of water and seek medical advice. If swallowed seek medical attention immediately - do not induce vomiting.

Fire

Struplast PLS22 is non-flammable.