ASTM C465-2019 pdf free download

ASTM C465-2019 pdf free download.Standard Specification for Processing Additions for Use in the Manufacture of Hydraulic Cements
3. Materials
3.1 Cements: 3.1.1 In cases where it is desired that the proposed organic processing addition be accepted for general use in portland cement, tests shall be made on cements prepared from at least five different clinkers. As a minimum, these clinkers shall represent two Type I cements containing not less than 9.0 % C 3 A, one Type II cement, and two Type III cements, all conforming to Specification C150/C150M. 3.1.2 In cases where it is also desired that the proposed organic processing addition be used in blended cements, the test and test procedures shall be as specified with a control and an addition for cement conforming to the appropriate Specifi- cation C595/C595M or C1157/C1157M. 3.1.3 Organic processing additions which have been shown to meet the requirements of this specification may also be used in cements conforming to Specification C845/C845M. Testing of the addition with these special cements, where desired, shall be done using the tests and test procedures as specified with a control cement and a cement containing the addition, both conforming to Specification C845/C845M. 3.1.4 In cases where it is desired that the proposed organic processing addition be limited in use to specific types of cement less in number than required in 3.1.1, the tests and test procedures shall be as specified, and at least two pairs of cements shall be prepared from two clinkers from different plants for each type under specific consideration. 3.1.5 For inorganic processing additions, or in cases where it is desired that the proposed organic processing addition be limited in use to a single plant, the tests and test procedures shall be as specified and at least two pairs of cements shall be prepared from clinker representing each type under specific consideration. 3.1.6 To evaluate comparable samples for the effect of the addition, two companion cements are to be made from any one clinker. 3.1.6.1 When testing organic processing additions, or inorganic processing additions in amounts less than 2 % by mass, the difference in fineness between the two companion cements shall not exceed 13 m 2 /kg. When testing inorganic processing additions in amounts of 2 % or more, the difference in fineness between the two companion cements shall not exceed 32 m 2 /kg. Fineness shall be determined in accordance with Test Method C204. 3.1.6.2 The SO 3 contents ofthe companion cements shall be reported to the nearest 0.01 % by mass, and shall not differ by more than 0.3 % by mass. 3.1.7 The percentage of each of the following shall be determined for each lot of cement tested: silicon dioxide (SiO 2 ), aluminum oxide (Al 2 O 3 ), ferric oxide (Fe 2 O 3 ), calcium oxide (CaO), magnesium oxide (MgO), sulfur trioxide (SO 3 ), ignition loss, insoluble residue, sodium oxide (Na 2 O), and potassium oxide (K 2 O). There shall also be calculated the potential percentages of the following compounds: tricalcium silicate, dicalcium silicate, tricalcium aluminate, and tetracal- cium aluminoferrite. Determinations for the percentage of the addition shall be made, both on the control cements and on those with which the addition was interground, using the method proposed therefore by the sponsor. 3.2 Aggregates—The fine and coarse aggregates shall com- ply with Specification C33/C33M; the coarse aggregate shall comply with the grading requirements for Size No. 57 or Size No. 67. A sufficient quantity from a single lot of coarse aggregate and from a single lot of fine aggregate shall be provided to complete all tests. To prevent the segregation of particle sizes in the fine aggregate, a single lot ofsand sufficient for all tests shall either (1) be separated on the 4.75-mm (No. 4), 1.18-mm (No. 16), 300 µm (No. 50), and 150 µm (No. 100) sieves and then be recombined in the required quantity for each batch; or (2) be blended while in a damp condition, and maintained in that condition for the duration of the tests.