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.
have a beam with one lateral restraint at bottom and top flange and load on top flange, should I use 2 segments or one segment of the beam ignoring bottom restraint as it is not in
Q. Explain Forty-five degree spread rule for driven piles ? For driven piles the length of piles driven into the ground is generally based on dynamic driving formula such as Hi
Moisture-Density Relationship: Since various compactive efforts result in varying degrees of compaction, it is necessary to standardize the compactive effort. The most well-kn
Surface runoff travelling over ground surface to reach receiving water involves the following events: i) Rainfall intensity exceeds soil's infiltration rate; ii) Excess water
I would like to know if anyone can help me with my const estimating project
Question Explain some reasons why should acetylene gas cylinders used for gas welding be erected in upright position? Answer Acetylene gas is usually used for gas wel
select three materials metal and non mealat at least one of the selected materials shold change its property
why only frustum cone use in slump
Estimate the single room of size 3m x 4m x height 3m using individual wall method?
What is the least count of prismatic and surveyor compass
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