Uni Plast IWL is a dark brown liquid based on lignosulphonates which mixes readily with water and therefore disperses evenly. Uni Plast IWL waterproofs by improving the quality of the concrete or mortar. It reduces the water demand for required workability and minimises segregation and bleeding.
The surfactants in Uni Plast IWL react in the cement, sand mixture to produce insoluble hydrophobic precipitates. These have a two-fold effect in reducing the permeability of the mix as they both repel moisture, due to their hydrophobic nature, and act as pore blocking agents to reduce the inter-connectivity of porosity in the mix.
Uni Plast IWL Uses
Integral Waterproofing Liquid Admixture For Concrete And Mortar
To produce waterproof sand cement mortars, screeds, concrete and renders or to improve application of mortars by making them more cohesive and workable. To minimize permeability and increase the waterproofing properties of concrete and cement sand mortars for critical applications like roof slabs and screeds, basements, internal and external plastering, bathroom floors, water tanks, sumps, drains etc.
Uni Plast IWL Advantages
- Provides integral protection to the mortar, render or screed, ensuring reduced permeability all through the applied material and not only on the surface.
- Reduced water permeability minimizes effiorescence caused by transport of dissolved salts through the mix.
- Entrained air bubbles assist in the formation of a stable cohesive mix, reducing segregation and bleeding and improving spreading and placing.
- Air entrainment improves mortar workability, allowing lower water contents to be used.
- Liquid admixture: Instant and complete dispersion throughout the mix. Uniform waterproofing throughout concrete matrix.
- High efficiency: Dramatic reduction in permeability of
Typical Properties & Specifications
| Sr. No. | Properties | Specification |
|---|---|---|
| 1 | Physical Appearance | Dark Brown liquid |
| 2 | Chloride content | < 0.2 % As per IS:2645-2003 |
| 3 | Compatibility | Can be used with all types of cements, including pozzolanic but not High Alumina Cement. |
| 4 | Permeability to water | Less than 15% as compared to 50% max. allowable under IS:2645 – 2003 compared to control sample. |
| 5 | Setting Time | No significant effect on setting time of concrete or mortar. |
| 6 | Compressive Strength | Maintains compressive strength equal to control concrete or mortar and can even improve on strength property if full advantage of water reduction potential is utilised. |
| 7 | Workability | Improves workability at reduced water cement ratio. |
Instruction for Uni Plast IWL Use
Integral Waterproofing Liquid Admixture For Concrete And Mortar
Plaster
Uni Plast IWL is ideal for use with all sand and cement
mortars where it is required to reduce permeability to a minimum.
Concrete
Uni Plast IWL is recommended for all general concrete
work where the risk of porosity and permeability must be minimised. Eg.
Basements, tanks,
balcony, floor and roof slabs. The required quantity of Uni Plast IWL is
measured and poured with the regular pouring of water in case of
conventional concreting. Separate dispensing system is required for RMC
plants. Uni Plast IWL water mixture shall be added to the concrete or
mortar and mixed thoroughly. Mixing shall be continued and further water
shall be added until the required workability is obtained. The total amount
of water added per mix in the initial batches shall be maintained for
the remaining batches.
Consumption
The minimum dosage is 125ml and the maximum is 200ml per
50kgs of cement. Site trials shall be carried out to arrive at the optimum
dosage.
Packing
Uni Plast IWL is supplied in 125ml, 1, 5 , 20 and 200
litre containers.
Shelf Life & Storage
Uni Plast IWL has a shelf life of 12 months from date
of manufacture when kept at a temperature between 0 0 5 C to 45 C and store
in the original, unopened bags. All material shall be stored under cover in
a manner that will prevent damage preferable on pallets and protected from
excessive heat and moisture. Do not freeze.
Quality Assurance
Universal Construction Chemicals is a firm of Assessed
Capability. The company's quality system conforms to ISO 9001:2015.
Health & Safety
Uni Plast IWL is no-toxic and non-flammable. Avoid
inhalation of dust during mixing and wear safety glasses, dust mask and
gloves. If skin contact occurs wash thoroughly with clean water. Should eye
contact occur rinse immediately with plenty of clean water and seek edical
advice. Full health and safety data are given in
Product Safety Data Sheet.
Note : Mixes using Uni Plast IWL will require much less water than normal mixes for the same workability. Water reduction may be as much as 15% or more. If the moisture content of the sand or aggregate changes i.e., it becomes wetter or dryer, then the amount of water used must be reduced or increased to give the original workability.
Uni Plast IWL Standards Compliance
conforms to IS : 2645 - 2003
