ASTM-C685 2011

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C685/C685M-11 Standard Specification for Concrete Made by Volumetric Batching and Continuous Mixing

Published By	Publication Date	Number of Pages
ASTM	2011	9

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Categories: 91.100.30 - Concrete and concrete products, ASTM

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Description

1.1 This specification covers concrete made from materials continuously batched by volume, mixed in a continuous mixer, and delivered to the purchaser in a freshly mixed and unhardened state as hereinafter specified. Requirements for quality of concrete shall be either as hereinafter specified or as specified by the purchaser. When the requirements of the purchaser differ from this specification, the purchaser’s specification shall govern. This specification does not cover the placement, consolidation, finishing, curing, or protection of the concrete after delivery to the purchaser. Tests and criteria for batching accuracy and mixing efficiency are specified herein.

1.2 The values stated in either SI units, shown in brackets, 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.

1.3 This specification references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of this specification.

1.4 This standard does not purport to address all 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 cementitious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged use. )

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents
2	Terminology Basis of Purchase Materials Ordering Information
3	Controlling and Measuring Materials
4	Mixing Mechanism TABLE 1
5	Mixing and Delivery Slump and Air Content Strength Failure to Meet Strength Requirements
6	Test Methods and Practices Inspection Batch Ticket Information TABLE 2
7	Keywords A1. CONCRETE UNIFORMITY REQUIREMENTS A1.1 Scope A1.2 Significance and Use A1.3 Concrete Mixture A1.4 Testing Apparatus and Materials A1.5 Sampling A1.6 Slump A1.7 Fresh Concrete Density (Unit Weight)
8	A1.8 Air Content A1.9 Air Free Fresh Concrete Density (Air Free Unit Weight) A1.10 Coarse Aggregate Content A1.11 Compressive Strength A1.12 Required Uniformity A1.13 Report TABLE A1.1

Additional information

Standard Title	C685/C685M-11 Standard Specification for Concrete Made by Volumetric Batching and Continuous Mixing
Published Code	ASTM
Publication Date	2011
Pages Count	9
ICS Codes	91.100.30 - Concrete and concrete products

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ASTM-C685 2011

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