• There are no items in your cart

AS 1012.4.2:2014

Current
Current

The latest, up-to-date edition.

Methods of testing concrete Determination of air content of freshly mixed concrete - Measuring reduction in air pressure in chamber above concrete
Available format(s)

Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English

Published date

04-04-2014

Preview

This Standard sets out the method for determining the air content of freshly mixed concrete from observations of the reduction in air pressure in a chamber above the concrete when the concrete is exposed to the air pressure.

This Standard sets out the method for determining the air content of freshly mixed concretefrom observations of the reduction in air pressure in a chamber above the concrete when theconcrete is exposed to the air pressure (see Note 1). When performed for quality controlpurposes such as for plant production testing or for mixer uniformity tests, the apparent aircontent only may be sufficient. The air content shall be determined when specified.The results obtained are dependent on the compaction method used. This Standard providesfor compaction of the sample by rodding or by vibration or by using self compactingconcrete (SCC) placed in the bowl.NOTES:1 This Standard is intended for use with concretes made with relatively dense naturalaggregates for which the aggregate correction factor can be determined satisfactorily by thetechnique described in Clause 9. It is not recommended for use with concretes made withlightweight aggregates, or aggregates of high porosity (see AS 1012.4.3).2 This Standard may involve hazardous materials, operations, and equipment. The Standarddoes not purport to address all of the safety problems associated with its use. The user of thisStandard should establish appropriate safety and health practices and determine theapplicability of regulatory limitations prior to use.

Committee
BD-042
DocumentType
Standard
ISBN
978 1 74342 691 3
Pages
7
PublisherName
Standards Australia
Status
Current
Supersedes

Originated as part of AS 1012.4—1983.Previous edition AS 1012.4.2—1999.Revised and designated as AS 1012.4.2:2014. Originated as part of AS 1012.4-1983. Previous edition AS 1012.4.2-1999. Revised and designated as AS 1012.4.2:2014.

AS 1012.4.3-1999 Methods of testing concrete Determination of air content of freshly mixed concrete - Measuring air volume when concrete dispersed in water
AS 1012.4.1-1999 Methods of testing concrete Determination of air content of freshly mixed concrete - Measuring reduction in concrete volume with increased air pressure
AS 1012.2-1994 Methods of testing concrete Preparation of concrete mixes in the laboratory
AS 1012.1-1993 Methods of testing concrete Sampling of fresh concrete

AS 3600:2018 Concrete structures
AS 1141.60.2:2014 Methods for sampling and testing aggregates Potential alkali-silica reactivity - Concrete prism method
AS 5100.5:2017 Bridge design Concrete

View more information
US$34.90
Excluding Tax where applicable

Access your standards online with a subscription

Features

  • Simple online access to standards, technical information and regulations.

  • Critical updates of standards and customisable alerts and notifications.

  • Multi-user online standards collection: secure, flexible and cost effective.