1、Standard Method of Test for Resistance to Degradation of Small-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine AASHTO Designation: T 96-02 (2015) ASTM Designation: C131-01 American Association of State Highway and Transportation Officials 444 North Capitol Street N.W., Suite
2、249 Washington, D.C. 20001 TS-1c T 96-1 AASHTO Standard Method of Test for Resistance to Degradation of Small-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine AASHTO Designation: T 96-02 (2015) ASTM Designation: C131-01 AASHTO T 96-02 (2015) is identical to ASTM C131-01 except
3、 for the following provisions: 1. All references to the ASTM standards contained in ASTM C131-01, listed in the following table, shall be replaced with the corresponding AASHTO standard. Referenced Standards ASTM AASHTO C136 T 27 C702 T 248 D75 T 2 E11 M 92 2. Add a new Section after Section 3.1 of
4、ASTM C131-01 as follows: 3.2 DESCRIPTION OF TERMS Constant MassTest sample dried at a temperature of 110 5C (230 9F) to a condition such that it will not lose more than 0.1 percent moisture after an additional 2 h of drying at 110 5C (230 9F). Such a condition of dryness can be verified by determini
5、ng the mass of the sample before and after successive 2 h of drying periods. In lieu of such a determination, samples may be considered to have reached constant mass when they have been dried at a temperature of 110 5C (230 9F) for an equal or longer period than that previously found adequate for pr
6、oducing the desired constant mass condition under equal or heavier loading conditions of the oven. 3. Add the phrase to the first sentence in Section 6.1 of ASTM C131-01 as follows: machine “equipped with a counter and” conforming Also replace the seventh sentence of this section as follows: “A remo
7、vable steel shelf shall extend along the length of the cylinder to within 5 mm (0.2 in.) of the full inside length of the cylinder, project inward 89 2 mm (3.5 0.1 in.) and shall be mounted on the interior cylindrical surface of the cylinder, or on the inside surface of the cover, in such a way that
8、 a plane centered between the large faces coincides with an axial plane.” Also, the third from the last sentence of Section 6.1 of ASTM C131-01 is not included in AASHTO T 96-02 (2010). 2015 by the American Association of State Highway and Transportation Officials.All rights reserved. Duplication is
9、 a violation of applicable law.TS-1c T 96-2 AASHTO 4. Changes to Figure 1 of ASTM C131-01 are as follows: a. The phrase “NOT LESS THAN 1270 mm MEASURED ON OUTSIDE OF DRUM” is not included in AASHTO T 96-02 (2010). b. The steel wall thickness shall be changed from “12.7 mm THICK” to “12.7 3.2 mm (1/2
10、 1/8in.) THICK.” 5. Add the following note after Note 2 in ASTM C131-01: “NOTEDue to its mass, the location of the shelf relative to the opening influences the “at rest” position of the opening. The shelf location should be chosen to provide a convenient position of the opening to facilitate the loa
11、ding of aggregate and spheres and to avoid impact of the charge on the cover.” 6. Add the following new section after Section 6.3 of ASTM C131-01: “OvenThe oven shall be capable of maintaining a uniform temperature of 110 5C (230 9F).” 7. Replace Section 6.3 of ASTM C131-01 with the following: “BalanceThe balance shall conform to AASHTO M 231, Class G 5.” 2015 by the American Association of State Highway and Transportation Officials.All rights reserved. Duplication is a violation of applicable law.
