ASTM D110-30 Specification for High Carbon Tar Cement

Trang 1 STANDARD SPECIFICATIONS FOR HIGH-CARBON TAR CEMENT1 A.S.T.M.. not less than 1.02 e Softening point Ring-and-Ball Method of residue from dis-tillation test .... ''''If desired, a flo

STANDARD SPECIFICATIONS

FOR

HIGH-CARBON TAR CEMENT1

A.S.T.M 'Designation: D 110-30 These specifications are issued under the fixed designation D 110; the final

number indicates the year of original adoption as standard or, in the case of revision,

the year of last revision

ISSUED AS TENTATIVE, 1921; ADOPTED IN AMENDED FORM, 1930

1 These specifications cover material suitable for use in the con- Scope struction of tar macadam and tar concrete pavements

2 The tar cement shall conform to the following requirements: Properties

30 to 40° C (86 to 104 ° F.)3

(c) Distillation test:

Total Distillate, by weight, 0 to 170° C

(32 to 338° F.) not more than 1.00 per cent Total Distillate, by weight, 0 to 270° C

(32 to 518° F.) not more than 10.00 "

Total Distillate, by weight, 0 to 300° C

(32 to 572° F.) not more than 20.00 "

Residue, by weight not less than 80.00 "

(d) Specific gravity at 38° C (100.4° F.) of total distillate to

300° C (572° F.) not less than 1.02

(e) Softening point (Ring-and-Ball Method) of residue from

dis-tillation test not more than 65° C (149° F.)

1 Under the standardization procedure of the Society, these specifications are under the jurisdic~

tion of the A.S.T.M Committee D-4 on Road and Paving Materials

'If desired, a float test may be substituted for the softening point test, in which case the require·

ments shall be as follows: Float Test at 50° C (122° F.), 100 to 220 sec

a The specification range for softening point, within the above limits, should be 5° C for any given

locality, for example, 30 to 35° C for cold climates, equivalent to a float test at 50° C of 100 to 160

sec.; 35 to 40° C for warm climates, equivalent to a float test at 50° C of 160 to 220 sec

(603)

Methods of

Testing

(f) Total Bitumen (Soluble in Carbon Disulfide) 1 • • • • • • • • • • • •

78 to 95 per cent

3 The properties enumerated in these specifications shall be determined in accordance with the following methods of test of the American Society for Testing Materials:

Petroleum Products and Other Bituminous Materials (A.S.T.M Designatioh: D 95) ;2

Point of Bitu1ninous Materials (Ring-and-Ball Method) (A.S.T.M Designation: D 36) ;3

Bituminous Materials Suitable for Road Treatment (A.S.T.M Desig-nation: D ,20) ;4

Materials (A.S.T.M Designation: D 139) ;5

Determina-tion of Bitumen (A.S.T.M DesignaDetermina-tion: D 4).0

88 per cent should be specified

2 Seep 556, 'Sec p 650

'Seep 642

• Seep 660

'Seep 633