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Today's Paper FEATURES PROPERTY PLUS

Published: May 21, 2011 00:00 IST | Updated: May 21, 2011 04:04 IST

Give it the right mix of tones

M.U.Aswath

There are many options for flooring but picking the right one depends on factors like smoothness and fire resistance

ON THE FLOOR:Red Oxide finish gives the home an elegant look

If the building has to have the right look and finish then floors matter a lot. And selection of flooring must have a tou

of imagination.

Floors add a unique character to spaces. Selecting the right flooring is therefore important for giving a building the land feel we desire. The choices are many: mud, muram, brick, flag stone, tiled, cement concrete, red oxide, granolithterrazzo, mosaic, marble, granite, timber, asphalt, rubber, linoleum, acid-proof, glass, plastic or PVC Flooring

The following points could be carefully consideredbefore making the final selection of the floor and floor covering:initial cost, appearance, cleanliness, durability, damp resistance, sound insulationor noiselessness, thermal insulatiosmoothness, hardness, comfort criteria, fire resistance and maintenance.

Each type of floor has its own merits and serves different purposes in different types of buildings. It is a well known fthat red oxide flooring is not easy to create. I think we are in a transition period and adopting the same old flooringconcept in its true form may be difficult. For example, to use the traditional cane and wooden furniture we need peo

who make the furniture in that style and it is difficult to get them and many have discontinued the trade because of

economic unviability.

If red oxide flooring is to be done in the traditional method, it has to be polished with husk and egg shells. Some peosay jaggery was also used in some form. Because of the scarcity of traditionally trained masons we need to adopt newtechnologies to create such floorings. A concerted effort is needed to preserve the traditional skills and crafts. Howevred oxide flooring can be done with standard methods with effective supervision.

New ways

Cement concrete floors with colouring and pattern techniques are becoming more popular these days. The most widused techniques are staining, painting, stamping, stenciling and creating graphics on concrete floors.

Stained concrete combines the best of both beauty and functionality. Concrete staining imparts a luxurious richnessStains can be applied to most existing concrete, making it an ideal solution for revitalising the surfaces. Thecombination of chemical stains and concrete dyes is a perfect solution. Using stains and dyes we can achieve vibranttones which are not possible with stains alone. Stamped concrete, commonly referred to as patterned concrete orimprinted concrete, is designed to resemble brick, slate, flagstone, stone, tile and even wood.

Stamped concrete can be used to beautify pool decks, driveways, entries, courtyards, patios and even interiors.

Construction

A floor consists of subfloor /base course/sub-base which imparts strength and stability to support floor covering andother superimposed loads, and floor covering or flooring, which provides a clean, smooth, impervious, durable and

wear-resisting surface. Proper treatment should be given to take care of different soil types and soil water table.

In places where the water table is low, a 40 to 100 mm thick layer of coarse sand is spread over the entire area offlooring on the prepared bed of rammed earth. Alternatively this layer can comprise stone soling with voids filled witsmaller stone chips or crushed stone powder.

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A 40 to 100 mm thick layer of concrete 1:3:6 or 1:4:8 mix is laid over the base course. This forms the base for the flootopping which may comprise tiles, stone or cement concrete.

In places where the sub-soil water table is high or in damp or humid areas, where there is possibility of moisture risiup in the floors, it is necessary to provide a membrane damp proof course of flexible material like bitumen felt over tentire area of flooring. After properly compacting and preparing the base course, cement slurry is prepared and applover the base floor and properly plastered. Lines are marked for the required designs of red oxide floor. Red oxide an

white cement should be mixed for the required colour using water and the pigment paste is applied using brush. Thecolour oxide/red oxide and cement (grey or white) are mixed in the ratio 1:3 to 1:5 by weight/volume. The floor isfinished with trowel by an expert mason and the floor is allowed to dry for one day. It is then cured for a minimum o

seven days. Alternatively use coloured/decorative concrete over the sub-base and finish as per the required shade angraphic design.

M.U.Aswath

[The author is Professor at Bangalore Institute of Technology and Secretary General, Association of Consulting CiEngineers (I)]

Printable version | May 31, 2012 5:57:55 PM | http://www.thehindu.com/todays-paper/tp-features/tp-propertyplus/article20365

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