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LIQUIDENSE RP(Retarding water reducing admixture)

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LIQUIDENSE RPR

Recommended Dosage

The optimum dosage of LIQUIDENSE RP to meet specific requirements should always be determined by trials using the materials and conditions that will be experienced in use. This allows the optimization of admixture dosage and mix design and provides acomplete assessment of the concrete mix. A starting point for such trials is to use a dosage within the normal typical range of 0.25 to 0.60 liters / 100 kg of cementitious material, including PFA, GGBFS or micro silica.

Use at other dosages

Dosage outside the normal range quoted above can be used to meet particular mix requirements. Contact IWL for advice in these cases.

Effects of overdosing

An overdose of double the intended amount of LIQUIDENSE RP will result in a significant increase in retardation as compared to that normally obtained at the intended dosage. 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.

An overdose will tend to increase the plasticizing effect of the admixture. As concrete is normally batched to target workability, increased plasticizing will allow an increased water reduction. This will have the effect of increasing ultimate strength and partially or fully offsetting the effect of any increased air entrainment. If no increase in water reduction is taken, and a significant rise is workability is allowed, the chance of segregation may be higher. Increased initial workability will tend to extend the working life of the concrete, which will delay finishing and stiffening times to some extent. Over dosage may also lead to reduced mix cohesion and may cause segregation and bleeding, particularly in high workability mixes. The degree of this effect will depend on the particular mix design and overdose level.

Technical Support

IWL provides a technical advisory service for on-site assistance and advice on mix design, admixture selection, evaluation trials and dispensing equipment.

Water reduction significantly improves compressive strengths at all ages and enhances durability through the production of low permeability concrete.

Controlled retardation extends working life and stiffening time for ease of construction.

Control of stiffening improves slip forming and assists in preventing the formation of cold joints in large pours.

Allows specified strength grades to be met at reduced cement content or increased workability.

Chloride free, safe for use in prestressed and reinforced concrete.

Peak temperature and/or rate of temperature rise in mass concrete lowered thereby reducing thermal cracking.

To improve the effectiveness of the water content of a concrete mix.

To extend the setting time of concrete, extending working times and minimizing delay problems.

To extend the working life of semi-dry concrete screeds.

Particularly suitable for use in mixes having fly ash and also improve the working life of semi dry concrete mixes.

Description

LIQUIDENSE RP is a chloride free water reducing admixture based on selected hydroxycarboxylic materials. It is supplied as a brown solution which instantly disperses in water.

LIQUIDENSE RP disperses the fine particles in the concrete mix, enabling the water content of the concrete to perform more effectively.

The initial hydration of the cement is also delayed, resulting in a delay in the setting time of the concrete with no adverse effect on subsequent stiffening and strength gain.

Uses

Advantages

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Brownish colored liquid

Min 6.00 *

1.01 ± 0.02 *

Nil

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2

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4

Appearance

pH

Density @ 25 o c

Chloride Content

PROPERTIESS. NO. SPECIFICATION

* The uniformity parameters like specific gravity, pH, chloride content etc. will vary for specific customer requirements and mix design. Please refer our MTC issued for specific product configuration for measuring our product parameters that will be constantly and consistently administered.

Compatibility

LIQUIDENSE RP is compatible with other IWL admixtures used in the same concrete mix. All admixtures should be added to the concrete separately and must not be mixed together prior to addition. The resultant properties of concrete containing more than one admixture should be assessed by the trial mix.

LIQUIDENSE RP is suitable for use with all types of ordinary Portland cement. Contact IWL for use with special cements and blends containing cement replacement materials.

Standard Compliance

LIQUIDENSE RP complies with BS 5075 Part 1 and with ASTM C494 as Type B and Type D.

Packing & Storage

Packaging

LIQUIDENSE RP is available in 5kg, 20kg and 200kg.

Storage

LIQUIDENSE RP must be stored where temperatures do not drop below +5°C. If product has frozen, thaw at +5°C or above and completely reconstitute using mild mechanical agitation. Do not use pressurized air for

agitation. Store under cover, out of direct sunlight and protect from extremes of temperature. Shelf life is 12 months when stored as above.

Failure to comply with the recommended storage conditions may result in premature deterioration of the product or packaging. For specific storage advice consult your local IWL representative.

Precautions

Health and safety instructions

LIQUIDENSE RP 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.

For further information consult the Material Safety Data sheet available for this product.

Fire - LIQUIDENSE RP is water based and non- flammable.

Cleaning and disposal

Spillages of LIQUIDENSE RP should be absorbed onto sand, earth or vermiculite and transferred to suitable containers. Remnants should be hosed down with large quantities of water. The disposal of excess or waste material should be carried out in accordance with local legislation under the guidance of the local waste regulatory authority.

Important note:

IWL products are guaranteed against defective materials and manufacture and are sold subject to its standard terms and conditions of sale, copies of which may be obtained on request. Whilst IWL endeavors to ensure that any advice, recommendation specification or information it may give is accurate and correct, it cannot, because it has no direct or continuous control over where or how its products are applied, accept any liability either directly or indirectly arising from the use of its products whether or not in accordance with any advice, specification, recommendation or information given by it.

Properties

LIQUIDENSE RPR

IWL INDIA LIMITED

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01-2018-A

RLIQUIDENSE RP

www.iwl.in

IWL INDIA LIMITED - HEAD OFFICE

W-360, North Main Road, Anna Nagar West Extension, Chennai - 600 101

Ph: 044-26156000 / 044-26152100 / 044-26156900

E-mail : iwl@iwl.in

ISO 9001 : 2015 Certified Company

IWL India Limited was incorporated in 1988, to manufacture revolutionary, modified bitumen based, waterproofing membranes and anti corrosive tapes. Since then, we have diversified into a number of other product lines, including Road Products, Liquid Waterproofing Membranes, Coatings, Adhesives, Admixtures and Construction Chemicals. We have a dedicated team of 150 highly experienced professionals in our direct employ. With an ISO 9001 certification to boot, our products are approved by all major consultants, clients and contractors including Military Engineering Services, Nuclear Power Corporation of India, Engineers India Limited, National Thermal Power Corporation, Larsen & Toubro, Nuclear Power Complexat Kudangulam, Nuclear Power Complex at Kaiga and Bangalore, Kolkatta, Delhi and Ahmedabad Metro Projects.

CHENNAI

DELHI

MUMBAI

VISAKHAPATNAM

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