硬化水泥浆、灰浆和混凝土长度变化测定仪器的使用规程

ASTM C490/C490M-2009

硬化水泥浆、灰浆和混凝土长度变化测定仪器的使用规程

Standard Practice for Use of Apparatus for the Determination of Length Change of Hardened Cement Paste,Mortar,and Concrete

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适用范围：This practice is intended to provide standard requirements for apparatus common to many test methods used in connection with cement and concrete and standardized procedures for its use. The detailed requirements as to materials, mixtures, specimens, conditioning of specimens, number of specimens, ages at which measurements are to be made, interpretation of results, and precision and bias are left to be dealt with in specific test methods. 1.1 This practice covers the requirements for the apparatus and equipment used to prepare specimens for the determination of length change in hardened cement paste, mortar, and concrete, the apparatus and equipment used for the determination of these length changes, and the procedures for its use. 1.2 Methods for the preparation and curing of test specimens, conditions of testing and curing, and detailed procedures for calculating and reporting test results are contained in applicable test methods. 1.3 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 non-conformance with the standard.

实施日期： 2009-12-01

中标分类号： Q13 - 建材 - 混凝土、集料、灰浆、砂浆

ICS分类号： 91.100.10 - 建筑材料和建筑物 - 水泥、石膏、石灰、砂浆

标准组织： ASTM - 美国材料与试验协会标准

全文来源： WF

英文关键词： cement paste comparator concrete length change apparatus molds mortar Cement mortars Cement pastes Change in length Hardened concrete Volumetric measurement--cement/concrete

语种：汉语

页数： 5

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硬化水泥浆、灰浆和混凝土长度变化测定仪器的使用规程

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