SPECIFICATION
ASTM - C494 |
Types A & D |
CRD - C-87 |
Types A & D |
BS 5075 |
Part 1 |
Institute of Bau Technik |
Type BV |
IS |
9103-79 |
DESCRIPTION
Perma Plast-EX is a general purpose plasticiser for concrete. It is a product based upon lingo sulphonates
PRIMARY USES
1) To increase workability.
2) To increase compressive stength.
3) To effect cement economies.
4) For hot weather concreting.
TYPICAL APPLICATIONS
1) In areas of congested inforcement where high workability is beneficial.
2) In pre-cast concrete manufacture.
3) In concrete brick and block manufacture.
4) Fot hot weather concrete.
ADVANTAGES
1) Increase workability.
2) Improves cohesive property in concrete.
3) Reduces water demand in concrete.
ACTION
Perma Plast-EX is a plasticiser which disperses and deffloculates the cement particles within a concrete mix. It can be used to improve workability. without the addition of extra water, or to allow reductions in free water content of the concrete mix.
DOSAGE
Field trials should be conducted to determine the optimum addition rates of Perma Plast-EX. A dosage range of 140 ml to 280 ml per 50 kgs of cement is recommended as an initial starting point.
DIRECTION FOR USE
Perma Plast-EX should be added to the concrete mix during the mixing cycle at the same time as the water. Never add Perma Plast-EX to dry cement.
PROPERTIES
Typical properties of Perma Plast-Ex are as follows:
Colour |
Dark brown/black liquid |
Specific Gravity |
1.17 at 250C |
Air Entrainment |
1% maximum dependent on grading of sand and watercontent. |
Chloride Content |
Free from added Chlorides |
Nitrate Content |
Nil |
COMPOSITION
A liquid admixture based upon refined lignosulphonates
HEALTH AND SAFETY
Perma Plast-Ex is not a health hazard or fire risk. Spillages should be washed immediatly to avoid possibilities of slipping.
PACKING
Perma Plast-Ex is available in 2, 20 and 210 litres.
SHELF LIFE
Twelve months if stored in manufacturer's original packing
QUALITY ASSURANCE
All “PERMA” branded products are manufactured under strict quality control supervision as per exact manufacturing specification. Should you find the behaviour 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 its current published directions for use performs as per its data sheets / catalogue. The manufacturer and the distributor will not be responsible for other materials and conditions of inferior workmanship.