• To protect the steel reinforcement bars ( rebar’s ) from environmental effects to prevent their corrosion.
• To provide thermal insulation, which protects the reinforcement bars from fire.
• To give reinforcing bars sufficient embedding to enable them to be stressed without slipping.

Concrete Cover for Slab:

Why we provide Concrete Cover?

Covering is provided to arrest the attack of corrosion. Reinforcement is prone to corrosion and fire for atmospheric conditions. If the proper cover isn’t implemented then there is more chance of corrosion and cracks in hardened RCC.

Covering is provided For every element of the building (Slabs, Beams, footings) where the reinforcement is used. In order to maintain the proper arrangement of reinforcement and to provide a covering for reinforcement. covering blocks are used.

1. Concrete Cover in Columns / Beams:-

#1 Below is the top view of a column ( the Same principle is applied for beams too).

Images are copyrighted. Mention source if you use this image in your blog/website

From the above figure, The length and Width of the column are 0.5m and 0.45m. It satisfies the second condition in the above table. Then, the covering for reinforcement in the column is  0.050m from all sides and same reinforcement is designed accordingly. The Dimensions of Reinforcement in the column are 0.40m and 0.35m.

#2:- Suppose the length and width of the column are 0.40 and 0.25. From the table, It satisfies both the conditions (2) & (1). Don’t apply two conditions for a single column. Covering should be Symmetrical. Consider the least dimension from the two dimensions. In below figure least dimension is 0.25. For 0.25m the covering of 0.025m is provided. Therefore the covering of 0.025m is provided in all the sides. Hence, dimensions of reinforcement is 0.35m and 0.20m

2. Concrete Cover for Slabs: –

From the below figure the length and width of the slab are 1.3m and 1.0m. As per the above table, the covering of 0.1m is provided if the length of the bar is more than 0.6m. Apply the same condition as mentioned. The covering of 0.1m is provided from all the sides of the slab.

3. Concrete cover for footings:-

As per the below figure the dimensions of Footing are 0.7m and 0.6m. To length and width of Mesh (reinforcement) used in footings are obtained by deducting the cover. Apply the same principle as above, the below footing is fallen under (3) condition. As per the condition, a concrete cover of 0.1m is deduced from all the sides. Hence, the dimensions of reinforcement are 0.5m and 0.4m.

Top 10 Companies Are as Follows

Top 10 IT Companies in India

Here, List of Top ten IT Companies in India.

• Tata Consultancy Services.
• Infosys.
• Wipro.
• HCL Technologies.
• Tech Mahindra.
• Larsen & Toubro Infotech.
• Mphasis.
• Mindtree.
• Oracle Financial Services.
• Hexaware Technologies.

Top 10 Pharma Company in India 2020

Here, list of Top Pharma Companies in India.

• Sun Pharmaceutical Industries Ltd
• Dr. Reddy’s Laboratories Ltd
• Divi’s Laboratories
• Cipla
• Aurobindo Pharma
• Torrent Pharmaceuticals
• Lupin Ltd
• Zydus Cadila Healthcare
• Glenmark Pharmaceuticals Ltd
• Abbott India

Top 10 Best Paint Company in India

Here is Top Ten Paint Companies in India.

• Asian Paints Ltd
• Berger Paints India Ltd
• Kansai Nerolac Paints Ltd
• Akzo Nobel India Ltd
• Shalimar Paints Ltd
• Nippon Paint India Pvt Ltd
• Snowcem Paints Ltd
• Jenson & Nicholson Ltd
• British Paints India Ltd
• Jotun India Pvt Ltd

Top 10 Private Banks in India 2020

Here, list of Best Private Bank in India.

• HDFC Bank
• ICICI Bank
• Axis Bank
• Kotak Mahindra Bank
• YES Bank
• Federal Bank
• IndusInd Bank
• RBL Bank
• IDBI Bank
• Bandhan Bank

Top 10 Real Estate Companies in India

• DLF Ltd.
• Prestige Estate.
• Omaxe Ltd.
• India bulls Real estate.
• Godrej Properties Ltd.
• Oberoi Realty.
• Brigade Enterprises Ltd.
• Sobha Ltd.
• HDIL Ltd.
• L&T Realty Ltd.

10 Best Cement Companies in India

• UltraTech Cement Ltd
• ACC Ltd
• Shree Cement Ltd
• Ambuja Cements Ltd
• JK Cement Limited
• The Ramco Cements Limited
• India Cements Ltd
• JK Laxmi Limited
• Orient Cement Ltd
• Heidelberg Cement India Ltd

Top 10 Solar Panel Manufacturers in India

Here, list of the solar energy companies in India.

• Adani solar
• Vikram Solar Private Limited
• Tata Power Solar
• Waaree Energies Limited
• EMMVEE Solar Technology
• RenewSys India Private Limited
• Moser Baer Solar Limited
• Loom Solar
• XL Energy Limited
• HHV Solar Technologies Private Limited

Top 10 Best Plywood Brands in India

Here, list of Top 10 Plywood Brands in India.

• Century Ply Laminates
• Greenply Industries Limited
• Samrat Plywood Limited
• Alishan Plywood
• Kitply Plywood
• Bansal Sales Corporation Pvt. Ltd.
• National Plywood Industries Limited
• Indiana plywood industries
• Woodstock Laminates Ltd.
• Crownply Plywoods

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