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RETARDING ADMIXTURE FOR CONCRETE
SUPER PLASTICISING AND SET RETARDING ADMIXTURE FOR CONCRETE Specification
ASTM C494 TYPES B & D CRD - C87 TYPES B BS 5075 IS-9103-79 Description Perma Retard is a liquid admixture for concrete based on refined Ligno sulphonates and Naphthalene formaldehyde blends. Perma Retard helps in production of super plasticised and set retarded concrete to enable the delayed pouring of concrete after its production or to get over the problems arising during hot weather concreting. Primary Uses To produce concrete with delayed initial and final setting times. Advantages Use of Perma Retard in hot weather ensures continuous pours resulting in monolithic sound concrete. Improves ultimate strengths significantly. Helps saving in cements in rich mixes. Directions for use Perma Retard should be added to the concrete mix along with water in the desired dosage. Perma Retard should not be added to the dry mix. Dosage Field Trials should be carried out with the given cement and aggregates to arrive at optimum dosages for the desired property to be achieved. However for guidance we specify a range of 0.3 to 0.9 percent by weight of cement. Properties
- Form : Liquid
- Colour : Dark Brown / Black
- Specific Gravity : 1.19 at 25oC
- Chlorides : Free from any added chloride.
- Sulphates : Nil
- Nitrates : Nil
- Freezing Point : 0oC. Can be reconstituted if stirred after thawing
- Flash Point : None
Health And Safety Perma Retard is not a health hazard or fire risk, spillages should be washed immediately to avoid stains and slipping. Packing 20 Litres, 100 Litres and 210 Litres drum. Shelf Life 12 Months from the date of manufacture. Quality Assurance All "Pharma" branded products are manufactured under strict quality control supervision as per exact manufacturing specifications. Should you find the behavior of the product varying from the claims in the data sheets please stop the use of the product and contact the nearest Perma staff or distributor. Statement of Responsibility Perma branded products when used in accordance with the current published directions for use, performs as per its data sheets/ catalog. The manufacturer and the distributor will no be responsible for other materials and conditions of inferior workmanship.
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