BS 812-121:1989
Current
The latest, up-to-date edition.
Testing aggregates Method for determination of soundness
Hardcopy , PDF
English
31-10-1989
Committees responsible
Foreword
1 Scope
2 Definitions
3 Principle
4 Sampling
5 Apparatus
6 Reagents
7 Preparation of test portions and specimens
8 Procedure
9 Calculation and expression of test results
10 Precision
11 Test report
Appendix A - Recommended procedure for determining
the magnesium sulphate soundness value
for other size fractions of aggregate
Appendix B - Details of the evaluation of precision data
Publications referred to
Aggregates passing a 14.0 mm test sieve are subjected to cycles of immersion in magnesium sulphate solution followed by oven-drying. A method for other sizes of aggregates is also described.
Committee |
B/502/6
|
DevelopmentNote |
Supersedes 88/10129 DC (10/2005) Reviewed and confirmed by BSI, November 2011. (10/2011)
|
DocumentType |
Standard
|
Pages |
12
|
PublisherName |
British Standards Institution
|
Status |
Current
|
SupersededBy |
This Part of BS 812 describes the method for determining the soundness of aggregates by subjecting the aggregate to cycles of immersion in a saturated solution of magnesium sulphate followed by oven-drying. The method is applicable to aggregate passing a 14.0 mm test sieve but is retained on a 10.0 mm test sieve.
NOTE 1 The majority of aggregates can be tested for soundness using this method. Precision has been established for the rock types listed in Table 1. The test may not be suitable for all rock types and reservations have been expressed elsewhere in respect of some carbonate aggregates and some aggregates having a high proportion of magnesium bearing minerals or of cryptocrystalline quartz.
For other size fractions, a recommended method is described in appendix A.
NOTE 2 The titles of the publications referred to in this standard are listed on the inside back cover.
PD 6682-6:2003 | Aggregates Aggregates for unbound and hydraulically bound materials for use in civil engineering works and road construction. Guidance on the use of BS EN 13242 |
BIS IS 15393-5 : 2003(R2009) | ACCURACY (TRUENESS AND PRECISION) OF MEASUREMENT METHODS AND RESULTS - PART 5: ALTERNATIVE METHODS FOR THE DETERMINATION OF THE PRECISION OF A STANDARD MEASUREMENT METHOD |
BS 594-1:2002 | Hot rolled asphalt for roads and other paved areas Specification for constituent materials and asphalt mixtures |
BS 594-1:1992 | Hot rolled asphalt for roads and other paved areas Specification for constituent materials and asphalt mixtures |
BS 4987-1:2001 | Coated macadam (asphalt concrete) for roads and other paved areas Specification for constituent materials and for mixtures |
PD 6682-2:2003 | Aggregates Aggregates for bituminous mixtures and surface treatments for roads, airfields and other trafficked areas. Guidance on the use of BS EN 13043 |
PD 6682-8:2004 | Aggregates Aggregates for railway ballast. Guidance on the use of BS EN 13450 |
PD 6682-7:2003 | Aggregates Armourstone. Guidance on the use of BS EN 13383 |
PD 6682-9:2003 | Aggregates Guidance on the use of European test method standards |
PD 6682-1:2003 | Aggregates Aggregates for concrete. Guidance on the use of BS EN 12620 |
ISO 5725-5:1998 | Accuracy (trueness and precision) of measurement methods and results — Part 5: Alternative methods for the determination of the precision of a standard measurement method |
BS ISO 5725-5:1998 | Accuracy (trueness and precision) of measurement methods and results Alternative methods for the determination of the precision of a standard measurement method |
S.R. 24:2004 | GUIDANCE ON THE USE AND APPLICATION OF EUROPEAN TEST METHOD STANDARDS FOR AGGREGATES |
BS 812-100:1990 | Testing aggregates General requirements for apparatus and calibration |
S.R. 17:2004 | GUIDANCE ON THE USE OF I.S. EN 13043:2002 - AGGREGATES FOR BITUMINOUS MIXTURES AND SURFACE TREATMENTS FOR ROADS, AIRFIELDS AND OTHER TRAFFICKED AREAS |
BS 812-113:1990 | Testing aggregates Method for determination of aggregate abrasion value (AAV) |
BS 812-112:1990 | Testing aggregates Method for determination of aggregate impact value (AIV) |
BS 812-100:1990 | Testing aggregates General requirements for apparatus and calibration |
BS 812-101:1984 | Testing aggregates Guide to sampling and testing aggregates |
BS 812-110:1990 | Testing aggregates Methods for determination of aggregate crushing value (ACV) |
BS 812-111:1990 | Testing aggregates Methods for determination of ten per cent fines value (TFV) |
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