Ramco Hard Worker Integral Waterproofing HW101

Ramco Hard Worker Integral Waterproofing (HW101) is a high-performance liquid additive designed to be mixed directly with concrete and mortar during the construction phase. Unlike surface coatings, this integral compound becomes a permanent part of the concrete matrix, protecting the structure from the inside out by significantly reducing water permeability.

It is particularly effective for structural elements that are constantly exposed to moisture or soil pressure.

Key Features & Benefits

• Reduces Porosity: HW101 densifies the concrete mix, filling the internal voids and capillaries that typically allow water to seep through.
• Strengthens Concrete: Unique among many additives, Ramco Hard Worker actually enhances the compressive strength of the concrete by approximately 10%.
• Corrosion Resistance: By blocking water and chloride ingress, it prevents the internal steel reinforcement from rusting, thereby extending the lifespan of the building.
• Improved Workability: It acts as a plasticizer, allowing for a reduction in the water-cement ratio by up to 20% while keeping the mix smooth and easy to handle.
• No Setting Time Impact: It provides waterproofing benefits without altering the standard setting time of the concrete.

Primary Applications

• Foundation & Footings: Essential for preventing groundwater from rising into the structure via capillary action.
• Beams & Columns: Protects the critical "skeleton" of the building from environmental moisture.
• Roof Slabs: Provides a primary internal shield against heavy rainfall and standing water.
• Water Tanks & Sumps: Ensures that the stored water stays in and the external contaminants stay out.

How to Use (Application Steps)

1. Dry Mix: Prepare the dry mixture of cement, sand, and aggregates as usual.
2. Dilution: Measure the required amount of HW101 (200 ml per bag) and mix it into the gauging water (the water intended for the concrete mix).
3. Mixing: Add this water-chemical solution to the dry mix and blend thoroughly to achieve a uniform, cohesive consistency.
4. Placement: Pour and compact the concrete immediately while it is fresh and workable.

Why Choose Ramco Hard Worker for Your Site?

Using an integral waterproofing compound like HW101 is much more cost-effective than relying solely on surface treatments. Since it is mixed throughout the concrete, the protection remains even if the surface is slightly scratched or chipped during further construction.