EXPERIMENT NO AIM :- To perform water absorption test ... - Raisoni
EXPERIMENT NO AIM :- To perform water absorption test ... - Raisoni
EXPERIMENT NO AIM :- To perform water absorption test ... - Raisoni
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PROCEDURE:-<br />
OBSERVATION TABLE :-<br />
SR<br />
No<br />
1<br />
2<br />
3<br />
4<br />
Weight of<br />
aggregates<br />
(1)Make the Pycnometer dry &Weight it with its cap &rin g<br />
(2)Unscrew the cap &Rut 200 gms of aggregate &Weight it<br />
(3)Add <strong>water</strong> to the top of brass cap. Remove all the trapped dir by pouring<br />
additional <strong>water</strong><br />
(4)Dry the Pycnometer & fell it to the top with & weight it<br />
(5)Repeat the Pro cedure<br />
(6)Find the average specific gravity by using formula<br />
Weight of<br />
empty<br />
pycnometer<br />
(W1)gm<br />
SAMPLE CALCULATION:-<br />
Weight of<br />
pycnometer<br />
+aggregate<br />
(W2) gm<br />
Average specific gravity =<br />
(W2-W1) Specific gravity =<br />
(W2-W1) – (W3-W4)<br />
G =<br />
Weight of<br />
pycnometer<br />
+<strong>water</strong><br />
+aggrate<br />
(W3) gm<br />
RESULT:-<br />
Average specific gravity is found to be ___________<br />
PRECAUTIONS:-<br />
DISCUSSIONS:-<br />
(1) Take the weight carefully.<br />
(2) Pycnometer must be dry for use.<br />
Weight of<br />
Pycnometer<br />
+<strong>water</strong><br />
(W4) gm<br />
(3) There should be no air bubble inside the bottle.<br />
Specific<br />
gravity<br />
The value of specific gravity of aggregate is required for<br />
concrete mix design and useful for calculating <strong>water</strong> content. Stone having<br />
higher <strong>water</strong> <strong>absorption</strong>s values are porous and this weaker specific gravity<br />
also indicates strong specimen.