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Are prestressed boundary walls strong?

Increasingly, some companies in India have been promoting and selling a prestressed boundary wall solution in India. They claim that they use 3-4 HT strands to prestress the panels. We became suspicious of this claim because common sense would dictate that these thin panels would bend under the prestressing forces. We decided to investigate by procuring prestressed panels and subjecting them to load tests in comparison to our KK RCC boundary wall system.
In order to test the load bearing capacity of the panels we made a simple test in which we simply supported the panel on both ends and applied a static load in the center by placing known weights (in this case 30 kg concrete kerb stones). The prestressed panels failed at a load of 90 kg while our KK RCC panels were able to take 180 kgs till development of a crack. Below are pictures of these tests.
This test unambiguously demonstrates that the prestress panel is significantly weaker than our KK RCC panel. One would conclude that the prestressing is non-existant.
Prestress Test Comparison

The Untold Story of the Chair Bench

KK Chair Bench
Not many people are aware about the history of the “Chair bench” shown in the picture above. The chair bench which is now synonymous with Indian Railway platforms was pioneered and introduced in India by us around the start of this century. The “Chair Bench” was first installed by us at New Delhi Railway Platform on a free trial which was a roaring success. In this trial Indian Railways realized that the “Chair Bench” was far superior to status quo and other alternatives in terms of cost-effectiveness, durability, and theftproofness.

The news about that success slowly spread through the railway eco-system and the various divisions of Railways started evaluating our “Chair Bench” for providing platform amenities. We are proud to state that now this product “Chair Bench” is ubiquitous at Railway platforms across India. It is so commonplace that the “Chair Bench” can be seen in the above promotional picture from the upcoming movie MS DHONIE: THE UNTOLD STORY.

This is yet another example of how we have created India specific solutions to problems.

KK introduces Konkrete Water Tank for Residential & Commercial Applications

KONKRETE water tank will allow you to enjoy clean and hygenic water at a comfortable temperature while saving you money. The tank made from concrete provides insulation against cold and hot atmospheric conditions. In addition, modular configuration of the tank allows for easy shipping, storage as well as easy assembly in difficult to access locations – even if access is through a narrow staircase. Moreover, it costs less than a plastic tank. KK Water Tank
Volume:450 liters
Material of Construction: Reinforced Cement Concrete
INSTRUCTIONS FOR INSTALLATION OF KONKRETE WATER TANK
You would require the following items for assembly

  • Four tank connectors – 2 nos 1/2 inch and 2 nos 3/4 inch with long thread (available from Supreme Company Dealer)
  • Jointing kit consisting of four parts to be used in the following fashion

New addition to our planter family

Dodecahedron Planter

Dear Business Partner:

We are pleased to introduce our newest member to the planter family.

The new planter aptly called “dedecahedron planter” is a compact planter of approximately 10 inches height and width.

The geometric shape of this planter will perfectly complement your indoor design themes.

Please contact us for more information.

Dodecahedron Planter

Some interesting new products from KK

 In this Issue

  • Launching revolutionary cover blocks for RCC construction
  • Spotlight on some other new products
April 2016 II issue
Cover Block
  • Provides the prescribed cover in RCC columns, beams, walls & piles.
  • Maintains the cover even after rotation of the cover block.
  • Is strong enough to endure the stresses encountered in RCC work.
  • Is easy to install.
Logo
KK cover blocks are becoming de facto standard for providing cover to reinforcement in RCC construction. They have been prescribed in various prestigious projects across India. Some examples include Delhi Metro, Chennai Metro, etc.KK manufactures cover blocks from concrete and plastics. These cover blocks provide exceptional load bearing capacity (concrete cover blocks use minimum M-50 grade concrete) and will go a long way in extending the life of RCC structures.
SEESAW SWING

Some pictures from an on-going boundary wall project near Chandigarh

We are happy to share some recent snaps from a boundary wall project near Chandigarh. On this project we are supplying our 8ft high boundary wall system with 50 mm thick panels. Two panels have been customized with the logo/branding of the client. The boundary wall is being erected aroung a residential development. The total span of the wall is expected to be 1 km. Please click on the following link to view more pictures from this project: www.kkindia.com/boundarywall.html

Precast Boundary wall