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.
know the planking and strutting for shallow excavation
Question While designing mini-piles , should strength of grout be disused during estimation of loading carrying capacity? Answer While designing min-piles, there will
coefficent of friction in circular pipes
Explain the Rippl Diagram or Mass Diagram For a potable water reservoir, it is the simultaneous plots of the cumulative inflow and cumulative water consumption/demand, termed "
A concrete wall form tie with an ultimate strength capacity of 2,400-lbs is designed for use in a concrete wall form with an 18-in center to center spacing. During formwork inspect
The loading period for a building extended from Feb., 1957 to Feb., 1959. In Feb., 1962, the average measured settlement was found to be 117 mm. The ultimate settlement was expecte
How to do deflection calculations Basic values of span to effective depth ratios for spans upto 10m may be taken as 7, 20 and 26 for cantilever, simply supported and continuous
How is corrosion perverted...?
what is a timber
briefly explain about c tokens ?
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: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd