• There are no items in your cart

BS DD249(1999) : 1999

Withdrawn
Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

TESTING AGGREGATES - METHOD FOR THE ASSESSMENT OF ALKALI-SILICA REACTIVITY - POTENTIAL ACCELERATED MORTAR-BAR METHOD
Available format(s)

Hardcopy , PDF

Withdrawn date

06-19-2014

Language(s)

English

Published date

01-01-1999

Committees responsible
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Apparatus
6 Reagents and materials
7 Storage solution
8 Sampling
9 Preparation of test aggregate
10 Preparation of test specimens
11 Test procedure
12 Calculations and classification
13 Test report
Annex A (informative) Aggregate combinations for testing
Annex B (informative) Estimate of precision
Annex C (normative) Classification criteria
Bibliography
Table 1 - Grading requirements for the test aggregate
Table B.1 - Critical ranges and reproducibility limits for
            the accelerated mortar-bar method when a test
            result is obtained as the mean expansion of three
            bars from one mortar batch
Table C.1 - Classification criteria

Describes a method for predicting the potential for expansion of concrete caused by the alkali-silica reactivity (ASR) of aggregates and combinations of aggregates. The test duration is normally 16 days.

Committee
B/502/6
DevelopmentNote
Reviewed and confirmed by BSI, November 2011. (10/2011)
DocumentType
Draft
Pages
12
PublisherName
British Standards Institution
Status
Withdrawn

PD 6682-9:2003 Aggregates Guidance on the use of European test method standards
S.R. 24:2004 GUIDANCE ON THE USE AND APPLICATION OF EUROPEAN TEST METHOD STANDARDS FOR AGGREGATES

ASTM C 1260 : 2014 : REDLINE Standard Test Method for Potential Alkali Reactivity of Aggregates (Mortar-Bar Method)
BS 812-104:1994 Testing aggregates Method for qualitative and quantitative petrographic examination of aggregates
BS 4551-1:1998 Methods of testing mortars, screeds and plasters Physical testing
BS 812-100:1990 Testing aggregates General requirements for apparatus and calibration
BS 812-101:1984 Testing aggregates Guide to sampling and testing aggregates
ISO 5725-2:1994 Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
BS 812-123:1999 Testing aggregates Method for determination of alkali-silica reactivity. Concrete prism method

View more information
US$134.16
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.