Types of limes and their properties, Civil Engineering

Types of Limes and their Properties

The limes are classified in three categories as fat lime, hydraulic lime and poor lime:

(1) Fat lime: It is composed of 95 percentage of calcium oxide. As water is added, it slakes vigorously and its volume increases 2 to 21/2 to times. It is in white color. Its properties are following :

1.    It has high degree of plasticity

2.    hardens slowly

3.    It is white in color

4.    It sets slowly in the presence of air

5.    It slakes vigorously.

(2) Hydraulic lime: It contains ferrous oxide and clay. Depending upon the percentage of clay exit, the hydraulic lime is divided into the following three categories:

   i.        Moderately hydraulic lime (11 to 20% clay content)

   ii.        Feebly hydraulic lime (5 to 10% clay content)

   iii.        Eminently hydraulic lime (21 to 30% clay content)

The properties of hydraulic lime are following:

Its color is not perfectly white

It is sets under water

Its binding property improves if fine powder is mixed with sand and kept in the form of heap for a week, before utilizing.

It forms a thin paste with water and do not dissolve in water.

(3) Poor lime: It contains more than 30% clay. Its color is muddy. It has poor binding property. The mortar composed with such type of lime is used for inferior works.

IS 712-1973 classifies lime as class A, B, C, D and E.

Class A Lime: It is predominantly hydraulic lime. It is usually supplied as hydrated lime and It is generally used for structural works.

Class B Lime: It contains hydraulic lime and fat lime both. It is supplied as hydrated lime or as quick lime. It is utilized for making mortar for masonry works.

Class C Lime: It is predominantly fat lime, supplied both as quick lime and fat lime. It is utilized for finishing coat in plastering and for white washing.

Class D Lime: This lime contains large quantity of magnesium oxide and is similar to fat lime. It is also commonly used for white washing and for finishing coat in plastering.

Class E Lime: It is not a pure lime stone. It is known as kankar. It is available in block and modular form. It is supplied as hydrated lime. It is usually used for masonry mortar.

Posted Date: 10/16/2012 2:38:53 AM | Location : United States

Related Discussions:- Types of limes and their properties, Assignment Help, Ask Question on Types of limes and their properties, Get Answer, Expert's Help, Types of limes and their properties Discussions

Write discussion on Types of limes and their properties
Your posts are moderated
Related Questions
what is fore bearing and back bearing

Determine the final stresses in the bolt: A steel bolt of diameter 12 mm and length 175 mm is used to clamp a brass sleeve of length 150 mm to a rigid base plate as in Figure.

I am currently enrolled in a graduate Civil Engineering course in Finite Element Analysis. The final assignment and project both deal with coding in MATLAB and I am having great di

Distance ABC was measured with a 30m. Chain tested and found to be correct in the beginning of the work .after measuring AB=1.2 km chain was found to be 10 cm. To long chaining was

Determine the Loss in post-tensioned members This loss occurs only in post-tensioned members. There always exists a certain amount of friction in the jacking and anchoring syst

Binders : Cement: Cement as a Binder Cement is one of the main ingredients of concrete. When cement sets (with the addition of water), it forms a paste and binds the

Explain the Inspection Tools for Underwater Inspection of Bridge? So many Inspection tools are available. The dive team should have access to the suitable tools and equipments

A capital improvement project requires the installation of a property line fence along the 250-ft Northern boundary line.The decorative aluminum fence is constructed of posts space

Q. Briefly explain about Artificial cut offs? Alignment of a cut off is chosen so that approach and exit ends remain more or less tangential to the river course. A cut off can

Heliports and Stol Ports: Heliports Heliports are facilities for landing and take-off of helicopters. They consist of : (a) Landing and take-off area, which contai