Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: AASHTO M 240:2012
• Năm ban hành / Publication date: 2012
• Tình trạng / Status: W - Hết hiệu lực
• Tên tiếng Anh / Title in English: Standard Specification for Blended Hydraulic Cement

Thay thế bằng / Replaced by

AASHTO M 240M/M 240:2017

• Số trang / Page: 23

Phạm vi áp dụng / Scope of standard

This specification pertains to blended hydraulic cements for
both general and special applications, using slag, pozzolan,
limestone, or some combination thereof, with portland cement or
portland cement clinker or slag with lime.

Note 1 - This specification prescribes
ingredients and proportions with some performance requirements,
whereas ASTM C 1157/C 1157M is a blended cement specification in
which performance criteria alone govern the products and their
acceptance.

The values stated in either SI units or inch-pound units are to
be regarded separately as standard. The values stated in each
system may not be exact equivalents; therefore, each system shall
be used independently of the other. Combining values from the two
systems may result in nonconformance with the standard. Values in
SI units [or inch-pound units] shall be obtained by measurement in
SI units [or inch-pound units] or by appropriate conversion, using
the Rules for Conversion and Rounding given in IEEE/ASTM SI 10, of
measurements made in other units [or SI units]. Values are stated
in only SI units when inch-pound units are not used in
practice.

The text of this standard refers to notes and footnotes that
provide explanatory material. These notes and footnotes (excluding
those in tables and figures) are not requirements of the
standard.