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2012年8月23日 ABSTRACT The softening point of materials which, like asphalt, have no definite melting point, but which when heated gradually change from brittle or very thick and slow
خبير الاتصالIn general, the Ring and Ball method provides the highest softening point while the Mettler softening point provides the lowest for a given resin. Therefore, both the softening point value
خبير الاتصال2024年6月14日 Softening Point Ring and Ball is the second oldest test method applied to bitumen, after needle penetration. It is the temperature at which a bitumen sample in a ring
خبير الاتصال2023年9月12日 This setup differs in vari- The temperature control is ASTM 1)6708 aims to assess the equiva- he cup-and-ball temperature measured to statistically relevant criteria, by a
خبير الاتصال2024年10月4日 These test methods are intended for determining the softening point of resins (including rosin and terpene resins) and similar materials by means of the ring-and-ball
خبير الاتصالSoftening Point Ring and Ball Apparatus determine the softening point of asphalt, coal tar pitch and other viscoelastic bitumens in the range of 30°–157°C (86°–315°F). The unit simultaneously tests two samples for optimal
خبير الاتصال2 天之前 Fig. Ring and Ball apparatus set-up for softening point of bituminous materials. To determine the softening point of bitumen/tar. Steel balls – two numbers each of 9.5 mm dia.
خبير الاتصال2016年3月4日 ring-and-ball method 词典 (用于测定沥青软化点)环球试验法 网络 环球法
خبير الاتصالRing and ball test is used to determine the softening point of bitumen, asphalt and coal tar. This test consists of two brass ring and two steel ball, using which the softening point of various bituminous materials are determined.
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خبير الاتصال2021年9月7日 Ring and Ball Test. The laboratory method of measuring the softening point is the ring and ball test. In this test, the bitumen sample is taken in two brass rings and steel balls are placed on it. The system is placed in a
خبير الاتصال2024年10月4日 ASTM D36 ASTM E28 EN 1427 IP 58. Softening Point of Bitumen (Ring and Ball Apparatus) This test method covers the determination of the softening point of bitumen in the range from 30 to 157°C (86 to 315°F)
خبير الاتصال2016年9月29日 5.1 Rings—Two square-shouldered brass rings conforming to the dimensions shown in Fig. 1(a). 5.2 Pouring Plate—A flat, smooth, brass plate approxi-mately 50 by 75 mm (2 by 3 in.). 5.3 Balls—Two steel balls, 9.5 mm (3⁄8 in.) in diameter, each having a mass of 3.50 6 0.05 g. 5.4 Ball-Centering Guides—Two brass guides for centering
خبير الاتصالThe two standard analytical methods used across a range of samples from bitumen to greases, waxes, and resins, are the ring-and-ball and the METTLER TOLEDO cup-and-ball method. The question that often arises is how the SP results obtained with the two methods compare. Statistical practice can provide a definitive answer.
خبير الاتصالThe Ring and Ball Apparatus is a compact user friendly apparatus. It has magnetic stirrer with heating facility and digital display of temperature, the heating can be adjusted through knob in AIM 561-1 and can be controlled through the
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خبير الاتصالSoftening Point Ring and Ball Apparatus determine the softening point of asphalt, coal tar pitch and other viscoelastic bitumens in the range of 30°–157°C (86°–315°F). The unit simultaneously tests two samples for optimal
خبير الاتصال2024年6月14日 Softening Point Ring and Ball is the second oldest test method applied to bitumen, after needle penetration. It is the temperature at which a bitumen sample in a ring has had a deformation of 25 ± 0,4 mm by a ball while heated. Defi nition and Terminology Softening Point Ring and Ball: Temperature at which bitumen and bituminous binders attains
خبير الاتصال2012年8月23日 thesupportcarryingthering,ball(ballguideifused),andhorizontal plateso thatthetop of the ring is not less than 5.1 cm below the surfaceof thewater and the —4.0° to +104° C. thermometer is
خبير الاتصالTwo laser sensors detect the balls fall determining the softening point. The bath temperature is measured by an electronic system maintaining the gradient (5 °C/min) as specified by the Standards. A magnetic stirrer with electronic
خبير الاتصال2023年11月30日 A metal ball and ring, each made of the same material, are made in such a way that at the same temperature, the inside diameter of the ring is just slightly larger than the diameter of the ball so that the ball will barely
خبير الاتصال2023年3月1日 Automatic Ring and Ball Tester, 230V/50-60Hz/1ph. Conforming to EN 1427, ASTM D36, AASHTO T53, IP 58, JIS K 2207, for the automatic determination of the softening point of bituminous materials. 81-PV0145/2 Steel ball 81-PV0145/3 Ball centering guide 81-PV0143/1 600 ml beaker
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خبير الاتصالThe Ring and Ball Apparatus is a precision testing instrument specifically designed for determining the softening point of bituminous materials, such as asphalt and pitch. This apparatus operates on the principle of heating a
خبير الاتصال2 天之前 The apparatus is assembled with the rings, the appropriate thermometer, and ball guides in position, and the bath is filled to a height of 50 mm above the upper surface of the rings, as shown above, figure, with freshly
خبير الاتصالRing and Ball Test Set (Softening Point Apparatus), Analog Model: B1790/D: Ring and Ball Test Set (Softening Point Apparatus), Digital Model: G300/05: Analog Magnetic Stirrer with Heater: G300/06: Digital Magnetic Stirrer with Heater:
خبير الاتصالAutomatic Ring and Ball Apparatus. ZI 4040. Standards:EN 1427; ASTM D36; AASHTO T53. Specification: The Automatic Ring and Ball Apparatus is an innovative microprocessor controlled automatic tester which is used to determine the softening point of bituminous materials using water or glycerol as the heating fluid.
خبير الاتصال2 天之前 The ring and ball apparatus consist of following: Steel balls – two numbers each of 9.5 mm dia. And weighting 3.5 ± 0.05 g. Brass rings – two numbers of the ring each having depth of 6.4 mm. The inside diameter at the bottom is 15.9 mm and the top is 17.5 mm. Ball guides – to guide the movement of steel balls keeping it in the center.
خبير الاتصال2016年5月20日 The HRB 754 Ring Ball Tester automatically determines Softening Point of bitumen, tar, pitch, tall oil rosins, and polymeric resins via standard ring and ball test methods. Tests start in four simple steps: insert the sample in the instrument, input the sample ID, select a pre-programmed test method, and press Start.
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