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Concrete curing by membrane curing is done by which of the following? a) serous membrane b) solid membrane

Concrete curing by membrane curing is done by which of the following? a) serous membrane b) solid membrane Correct Answer only b

Explanation:

The different type of curing methods and their brief explanation is given below in the tabulated form :

Method of Curing

Brief Characteristics

Shading Of Concrete Work

This is adopted mainly in the case of large concrete surfaces such as CC Roads.

This is done by using canvas stretched on frames.

Covering Concrete Surfaces with Hessian or Gunny Bags

This is widely used for structural concrete in building construction.

The exposed surface of the concrete is prevented from drying out by covering it with hessian, canvas, or empty cement bags. 

Sprinkling of Water

It is mostly used for curing floor slabs. Water is sprayed by the use of perforated plastic boxes.

Pounding Method

It is suitable for curing horizontal surfaces such as floors, roof slabs, and road and airfield pavements.

 After placing the concrete, its exposed surface is first covered with moist hessian cloth. After 24 hours, these covers are removed and small ponds of clay or sand are built across and along the pavements. The area is thus divided into a number of rectangles. The water is filled between the ponds.  

Membrane Curing

The wetted concrete surface is covered by a layer of waterproof material, which is kept in contact with the concrete surface for seven days. This membrane prevents the evaporation of water from the concrete.  The membrane can be either in solid or liquid form.

 Bituminized waterproof papers, wax emulsions, bitumen emulsions, and plastic films are the common types of membrane used.

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