درباره ما
ASTM - ASTM International: Recent submissions
Now showing items 901-920 of 39933
-
Standard Test Method for Wedging of Flat, Rectangular Ceramic Wall and Floor Tile
Abstract: 4.1 Tile are normally pressed in dies having true 90° angle construction. However, minor variations in die fill, compacting pressure, and heat treatment can result in finished tile with acute and obtuse angles. This ... -
Standard Test Methods for Concrete Pipe, Concrete Box Sections, Manhole Sections, or Tile
Abstract: These test methods cover production and acceptance tests for concrete pipes, manhole sections, and tiles. Tests include procedures for evaluating external load crushing strength, flat slab top, core strength, absorption, ... -
Standard Specification for Processing Additions for Use in the Manufacture
of Hydraulic Cements Abstract: This specification covers the criteria and tests to be used for determining whether a processing addition meets the requirement. When proposed addition is accepted for general use in Portland cement, tests shall be made ... -
Standard Test Method for Potential Expansion of Portland-Cement Mortars Exposed to Sulfate
Abstract: 5.1 This test method is used primarily by those interested in research on methods for determining the potential sulfate resistance of portland cement. This test method is also used to establish that a sulfate-resisting ... -
Standard Test Method for Fineness of Hydraulic Cement by the 45-μm (No. 325) Sieve
Abstract: This test method covers hydraulic cement fineness tests performed using a sieve. The sieve frame should be made of a circular metal matching the specified dimensions, fitted with either a stainless steel woven-wire sieve ... -
Standard Specification for Concrete Drain Tile (Metric)
Abstract: This specification covers concrete drain tile, to be used for surface and subsurface drainage. Manufactured drain tile shall be of the following classes: standard-quality concrete drain tile, extra-quality concrete drain ... -
Standard Specification for Concrete Drain Tile
Abstract: This specification covers concrete drain tile, to be used for surface and subsurface drainage. Manufactured drain tile shall be of the following classes: standard-quality concrete drain tile, extra-quality concrete drain ... -
Standard Test Method for Thermal Conductivity of Whiteware Ceramics
Abstract: 2.1 This test method provides information useful in understanding and quantifying such parameters as thermal shock resistance and ability to conduct or dissipate heat. -
Standard Specification for Pressure Vessel Plates, Alloy Steel, Chromium-Molybdenum
Abstract: This specification covers chromium-molybdenum alloy steel plates for welded broilers and pressure vessels designed for elevated temperature service. Materials considered under this specification are available in grades 2, ... -
Standard Test Methods for Fusion Flow of Porcelain Enamel Frits (Flow-Button Methods)
Abstract: These test methods cover evaluation of the relative fusion flow characteristics of samples of a given porcelain enamel by comparison with an established standard for that frit. Two test methods are included, differing only ... -
Standard Test Methods for Sampling and Testing Coal Ash or Natural Pozzolans for Use in Concrete
Abstract: 4.1 These test methods are used to develop data for comparison with the requirements of Specification C618 or Specification C1697. These test methods are based on standardized testing in the laboratory and are not intended ... -
Standard Terminology Relating to Hydraulic and Other Inorganic Cements
Abstract: 3.1 In definitions of cements, ingredients are cited only when they are inherent to the definition, for example portland-pozzolan cement. For ingredients and their quantity limits, if any, that are permitted or prohibited ... -
Standard Test Methods for Fineness of Hydraulic Cement by Air-Permeability Apparatus
Abstract: This test method covers determination of the fineness of hydraulic cement, using the Blaine air-permeability apparatus, in terms of the specific surface expressed as total surface area in square centimetres per gram, or ... -
Standard Test Method for Cold Bonding Strength of Refractory Mortar
Abstract: 3.1 The data developed by this test method show the bonding strength and intrinsic strength of different qualities of air-setting mortar. The procedures described in this test method measure the bonding strength and intrinsic ... -
Standard Practice for Making and Curing Concrete Test Specimens in the Laboratory
Abstract: 4.1 This practice provides standardized requirements for preparation of materials, mixing concrete, and making and curing concrete test specimens under laboratory conditions. 4.2 If specimen preparation is controlled as ... -
Standard Test Method for Density of Hydraulic Cement
Abstract: 4.1 This test method provides a procedure for the determination of density of hydraulic cement samples using non-instrumental techniques. -
Standard Practice for Sampling and the Amount of Testing of Hydraulic Cement
Abstract: 4.1 The sampling procedures described are intended for use in the procurement of samples of hydraulic cement after it has been manufactured and is ready to be offered for sale. They are not intended as sampling procedures ... -
Standard Test Method for Workability Index of Fireclay and High-Alumina Refractory Plastics
Abstract: 3.1 Workability index serves as a measure of the facility with which refractory plastic materials can be rammed, gunned, or vibrated into place. 3.2 Workability index is commonly used to control consistency of plastics ... -
Standard Test Method for Measuring Thickness of Concrete Elements Using Drilled Concrete Cores
Abstract: 4.1 This test method is used to determine the compliance of concrete construction with design specifications and is commonly used in determining the thickness of pavements and other slab construction. This test method ...