Tiêu chuẩn quốc tế

Số hiệu

Standard Number

ASTM C87-05
Năm ban hành 2005

Publication date

Tình trạng W - Hết hiệu lực

Status

Tên tiếng Anh

Title in English

Standard Test Method for Effect of Organic Impurities in Fine Aggregate on Strength of Mortar
Chỉ số phân loại Quốc tế (ICS)

By field

91.100 - Vật liệu xây dựng
91.100.10 - Xi măng. Thạch cao. Vữa
Số trang

Page

4
Giá:

Price

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Phạm vi áp dụng

Scope of standard

1.1 This test method covers the determination of the effect on mortar strength of the organic impurities in fine aggregate, whose presence is indicated using Test Method C 40. Comparison is made between compressive strengths of mortar made with washed and unwashed fine aggregate.1.2 The SI values shown are to be regarded as the standard. The inch-pound values shown in parentheses are provided for information purposes only.1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.(Warning - Fresh hydraulic cementitous mixtures are caustic and may cause chemical burns to exposed skin and tissue upon prolonged exposure.)²