Bitumen Penetrometer

Bitumen Penetrometer: MTBA-04

It may be defined as the hardness softness of the bitumen by measuring the depth in tenth of a millimeter to which standard loaded needle will penetrate vertically in five minutes the penetration of bituminous material is the distance in tenth of a millimeter that a standard needle will penetrate vertically into a sample of the material under standard conditions of temperature load and time.

Soften the material to pouring temperature not more than 60°C for tars and not more than 90°C for bituminous materials above the approximate softening point and see that it is homogeneous and is free from air bubbles and water by stirring pour the material into the container to a depth at least 10 mm in excess of the expected penetration protect the sample and allow it to cool place it in the bath which is to be kept at 25°C unless otherwise specified the test is carried out at 25°C adjust the needle to make contact with surface of the sample bring the pointer to zero release the needle and measure the distance penetrated make three determinations and express in one tenth of a millimeter.

Features:-

Sampled filled
Spirit level
Penetration needle
Concept
The dial reading is recorded
The above procedure is repeated for thrice
The container is kept on the stand of the penetration apparatus
The needle is adjusted to make contact with the surface of the sample
The dial reading is adjusted to zero. Is adjusted.

Description

Technical Specification:-

Temperature 250°C
Penetrometer apparatus with containers and weights having penetration needle (Bitumen)
Penetrometer apparatus with containers and weights having penetration CONE HOLLOW type (Grease)
Same as above – but with Geared arrangement for moving the arm with geared unit
Penetrometer with Brass Cone & Needle with DIGITAL TIMER DEVICE (Adjustable)
Water Bath — A bath having a capacity of at least 10 Liter and capable of maintaining a temperature of 25 ± 0.1°C or other temperature of test within 0.1°C
Timing Device — for hand operated Penetrometer any convenient timing device such as an electric timer, a stop watch, or other spring activated device may be used provided it is graduated in 0.1 second or less and is accurate to within ± 0.1 second for a 60 second interval
Thermometers — Calibrated liquid-in-glass thermometers of suitable range with subdivisions and maximum scale error of 0.1°C or any other thermometric device of equal accuracy, precision and sensitivity shall be used
It is cooled at an atmospheric temperature of 15 to 30°C for 21 hrs. Then it is placed in a transfer dish in the water bath at 25.0 + 0.1°C for 21
It is poured into a container to a depth of at least 15mm in excess of the expected penetration
The bitumen above the softening point (between 75 and 100°C) is softened it is stirred thoroughly to remove air bubbles and water.

Accessories:-

Needle
Container
Water bath
Transfer dish
Thermometer
Time device

Optional Accessories:-

Spare Penetration Needle (Pack of two)
Spare Penetration solid cone
Spare Penetration brass hollow cone
Grease worker hand operated
Grease worker hand operated big handle (Lever type)
Grease cutter

** Note:-The content of the product and specification are subject to change without prior notice for continuous improvement. Images shown are for representation purpose only. “MICROTEKNIK “keeps the right to modify the content in the product without prior notice.