Thursday, March 28th, 2024
CECR

Nuvoco Vistas Launches Concreto CWT Plus:

A Water And Crack Resistant Concrete

 

Mr. Prashant Jha
Chief – Ready-Mix Concrete Nuvoco Vistas Corp. Ltd. www.nuvoco.in

 

Nuvoco is a leading cement player in India and the largest cement company in East India in terms of capacity, following the acquisition of Nu Vista Limited (formerly Emami Cement Limited), offering various brands of cement such as ‘Concreto’, ‘Duraguard’, ‘Nirmax’, ‘Double Bull’, and ‘Infracem’. Today, Nuvoco offers a diversified business portfolio under three business segments, namely, Cement, Ready-Mix Concrete (RMX) and Modern Building Materials (MBM). Mr. Prashant Jha, Chief – Ready-Mix Concrete in conversation with CE&CR, shares his views on their latest product.

 

CE&CR: What are the specifications of Concreto CWT Plus?
Prashant Jha: Concreto CWT Plus is a high performance water resistant concrete. It ensures the water tightness by reducing permeability and healing micro cracks of concrete. Concreto CWT Plus has unique active chemicals, which react with the moisture within the concrete and with various products of the cement hydration process. As a result of this reaction insoluble crystalline compounds are created throughout the entire capillary system. Over time crystalline formations reduce the size of the capillary pores until they are completely blocked and water flow is stopped.

Mechanism of Concreto CWT Plus –

  • Generally, water travels through the capillaries formed in the concrete or micro cracks on to the surface of the
  • Concreto CWT Plus have new generation crystalline water proofing Whenever water penetrate in the concrete it starts reacting with concrete chemicals and generate complex crystalline matrix. It fills the capillaries and stop the water permanently.
  • Concreto CWT Plus can also fill the concrete micro cracks up to 5mm thickness.

 

CE&CR: What are the construction challenges addressed by Concreto CWT Plus?
Prashant Jha:
Concrete is one of the most versatile and widely-used construction materials on earth. It is strong, durable, low maintenance, simple to use, and can be made to fit any size or shape. However, despite being such a versatile building material Concrete has cracks and Seepage as major problems. If we look into the concrete from the magnitude of micro level pores and capillary could be visible through which water can enter and pass easily. Most of the times the sub-structure or underground constructions are in constant hydrostatic pressure. Water can enter from any weak links like micro cracks in the structure, and travel through already existing pours and capillaries, the pitfall is water dampness and seepages.

Nuvoco’s Construction Development & Innovation Centre (CDIC) identified the genesis of these problems and formulated a watertight concrete solution – “Concreto CWT Plus” packed with globally advanced and proven Crystalline waterproofing technology.

When the water seeps through the concrete pours and micro cracks the specialized additives in CWT Plus gets activated and start forming a complex crystalline matrix. This matrix fills the pores and blocks the capillaries from inside thus stopping water from passing through it. Concreto CWT Plus also seals the (non-structural) micro cracks up to 0.5mm in width.

 

CE&CR: What is the target market of Concreto CWT Plus and where will the product be available?
Prashant Jha: Concreto CWT Plus is ideal to be used in any underground or sub-structure like basement, retaining walls, rafts, sunken area, slabs, water storage tanks, swimming pools and tunnelling. This product can be used by anybody but we are targeting developers, Individual Home Builders (IHB). The product will be available across India wherever we have our concrete plants.

 

CE&CR: What is the durability and other features of this product apart from water resistance?
Prashant Jha: Concreto CWT Plus is based on a proven technology of crystalline waterproofing. Once applied, the active ingredients from the waterproofing material penetrate inside the building component and cause a brisk crystal growth. The smallest pores and cracks become filled with crystals and impermeable to capillary water. Crystalline waterproofing actually uses available water to grow crystals inside concrete, effectively closing off pathways for moisture that can damage concrete. They block water from any direction because the concrete itself becomes the water barrier. These needle-like crystals grow until all pores are blocked and no water can penetrate the concrete. The crystalline formula can allow concrete to self-seal hairline cracks up to 0.5 mm, even years after the original construction.

Features of Concreto CWT Plus –

  • Provide water tight structure by filling the capillaries and pours by new generation crystalline water proofing
  • Can fill concrete micro cracks of width up to 5mm thick
  • Improve concrete durability
  • Reduce maintenance cost of the structure.

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