0000011518 00000 n (I.S. Definition. He is the author, editor of Civil Planets. The sample bitumen has to be melted at 90°C which must be in uniformity & without bubbles. 0000012920 00000 n Now take the final reading from the graduated scale as G2. Must wear a hand glove while heating the bitumen. %PDF-1.4 %���� A flat pan for carrying the test specimens. Bitumen: Tests and frequency for IA for viscosity and sieve are shown in Table 401-5. 0000014081 00000 n This suggests that oxidation mechanisms in the field may not be the same as in the laboratory aging tests. field. – 1/10 seconds or Automatic penetrometer timer. 3. The depth of bitumen in the container is kept at least 15mm more than the expected penetration. The process Now place the container over the base of the penetrometer. Procedure for Penetration Test of Bitumen . 0000001928 00000 n A brass ring containing test sample of bitumen is suspended in liquid like water or glycerin at a given temperature. This is a quality control test which provides methods of extracting the bitumen from the mixed material. 0000064153 00000 n 0000005838 00000 n The adjustment screw of the penetrometer can do it. A minimum of 3 tests has to be done for the same sample at different points. In BS (UK) literature, the ranges start from 15 (hardest bitumen) to 450 units (softest Bitumen). Each test point should be conducted at 10mm away from the previous test point. 10.4.2 Bitumen Extraction Test Scope. Take an initial reading as G1 from the graduated scale. After that, the steel needle has to be cleaned by the benzene & fix to the weight carrier. The apparatus consists of an aluminum float and a … The penetration test of bitumen has been conducted as per. Extraction apparatus, consisting of a bowl and an apparatus in which the bowl may be revolved at controlled variable speeds up to 3600 revolutions per minute. Table 401-5 Test Frequency AASHTO T 59, “Emulsified Asphalts” 2 test results per project. The penetrate value difference between those test points should be in the limit as given below. The displacement happening on a thin layer of bitumen can be determined with the help of a sliding plate test. Lower Penetration is preferred in hot climatic conditions so that it doesn’t get soft due to the heat. The force in the layer is also calculated. Oven a well maintained oven is needed cable of maintaining the temperature at 110 degrees. 0000004980 00000 n 0000008140 00000 n 0000006094 00000 n x���1 0ð4d�z\G����M��y��~���q�` 5� � A steel ball is placed upon the bitumen sample and the liquid medium is heated at a rate of 5 0 C per minute. 0000009151 00000 n Before starting the penetration, the needle should touch the top surface of the bitumen. The average value of the 3 test points is the Penetration value of the bitumen. 0000005761 00000 n Based on the bitumen grade, it can be used in related temperature conditions to make the road. 0000017559 00000 n Table 401-6 Test Tolerance AASHTO T … in India, bitumen’s are available with penetration values varying from 20 to 450. 0000002457 00000 n The penetration test is carried out to classify bitumens into different grades. This is a basic test for determining the grades of bitumen. Read a detailed procedure of Bitumen Penetration Test with Sample Data. 0000072084 00000 n Tolerance between IA and acceptance tests are in Table 4 01-6. Ensure the grade of bitumen, whether it is safe to use in construction work. xref The value of penetration is measured in 1/10 … – It should contain 10 litres of water & maintain at 25°C. The test is conducted by using Ring and Ball apparatus. 0000012964 00000 n Bitumen Extraction test is used to determine the amount of bitumen that is actually used as binding content in asphaltic pavement or asphaltic concrete recently laid at site. The penetration test of bitumen has been conducted as per IS code 1203. Asphalt consists primarily of bitumens, which are high-molecular-weight hydrocarbons soluble in carbon disulfide. @}�U�Fu��Oj ��jIBCA��>�w�Mn��[�@���������no4O��b�{�Xc0I$ӵ���¹���=%j8z���B�_f!%!���1$�.��{w^S�]�&*�����ӻ��8t��:d;�l�)��L�4��2���|��Щ��O+��"���� (��yv��f���u���)��ϴ�#���N��Ƞ�A)- ��e5�D=%�(�����D�'R xZ̼f�E��T���8�.���>�)=^CO����J����$����C��Q6�������.