Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Tests on Limestones
Practical tests are made on lime stones to decide their suitability is following:
i. Physical tests
ii. Heat test
iii. Chemical test
iv. Ball test.
(i) Physical Test: Pure limestone is white color stone. Hydraulic lime stones are brown, bluish grey or it has dark colors. The hydraulic lime gives out earthy smell. They are having clayey taste. Presence of lumps gives indication of quick lime and unburnt lime stones.
(ii) Heat Test: A piece of dry stone which weigh is W1 is heated in an open fire for few hours. If weight of sample stone after cooling is W2, the loss of weight is W2 - W1. The loss of weight shows the amount of carbon dioxide. From this the amount of calcium carbonate in limestone may be worked out.
(iii) Chemical Test: A teaspoon with full of lime is placed in a test tube and dilute hydrochloric acid is poured in it. Content is stirred and test tube is kept in the stand for 24 hours. Vigorous effervescence and less residue show pure limestone. If effervescence is less and its residue is more it shows impure limestone.
If thick gel is formed and after test tube is held upside down it is possible to recognize class of lime as shown below:
(iv) Ball Test: This test is conducted to recognize whether the lime belongs to class C or to class B. By adding adequate water approximate 40 mm size lime balls are building and they are left undisturbed for 6 hours. Then the balls are placed in a basin of water. If within minute's slow expansion and slow disintegration begin it indicates class C lime. If there is little or no expansion, but just cracks appear it belongs to class B lime.
what are advantage of stepping stone
looking for someone good at structure analysis and design courswork
How do you distinguish among clay and silt in the field? State the purpose of identification and categorization of soils. List any three significant engineering classification syst
List the factors that affect the permeability of a given soil. Determine the precautions that should be taken so that satisfactory permeability data may be obtained. Explaining
What are Aquifers? Water bearing, underground geologic formations. The subsurface formations are composed of soils and rocks with voids saturated with water.
method of raft foundation
Finding distances in tacheometric survey
Define Alkali Aggregate Reaction - Chemical deterioration? Sometimes high alkali cement reacts with minerals in certain aggregates and forms expansive compounds resulting into
how activity charts and string diagram use in work study?
Define Masonry substructure- underwater inspection of bridge? In early days, masonry, particularly stone masonry was extensively used for bridge piers and abutments. Typically,
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd