BRITISH STANDARD

BS 5328: Part 1: 1997 Concrete

Part 1: Guide to specifying concrete

1Cs91.100.30

NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW

Introduction

1 Scope

This Part of BS 5328 gives advice on the selection of the quality of concrete suitable for many general purposes not covered by other British Standard specifications or codes of practice. It also gives guidance on sampling for strength conformity testing and action to be taken in the event of non-conformity.

This Part of BS 5328 is primarily a guide for the specifier in choosing the appropriate materials and mix. It gives the range of constituent materials that can be used. It describes the properties of fresh and hardened concrete, with considerable emphasis on durability.

Distinction is made between structural and non-structural concrete and between unreinforced, reinforced, and prestressed concrete. Also included is guidance on sampling for strength conformity testing and action to be taken in the event of non-conformity.

2 References

2.1 Normative references

Account is taken of standard specifications relating to ground granulated blastfurnace slag or pulverized-fuel ash used in composite cements or in equivalent combinations.

This Part of BS 5328 refers to other publications that provide information or guidance. Editions of these publications current at the time of issue of this standard are listed on the inside back cover, but reference should be made to the latest editions.

2.2 Informative references

Purchasers of ready-mixed concrete are advised to specify certification meeting the requirements of the United Kingdom Accreditation Service, National Accreditation Certification Bodies, for product conformity.

Purchasers ordering designated mixes in accordance with BS 5328: Part 2: 1997 need not specify quality assurance requirements for concrete, as it is obligatory that the producer holds current product conformity certification based on product testing and surveillance coupled with approval of the producer's quality system to BS EN ISO 9001 by a certification body accredited by the Secretary of State (or equivalent), for the relevant areas of product and operations conformity certification.

3 Definitions

For the purposes of this Part of BS 5328, the definitions given in BS 6100 apply, together with the following.

3.1 batch

Quantity of concrete mixed in one cycle of a batch mixer, or the quantity discharged during 1 min from a continuous mixer, or the quantity of concrete conveyed ready-mixed in a vehicle.

3.2 cement

Hydraulic binder that sets and hardens by chemical interaction with water and is capable of doing so under water. NOTE. The cements covered by this standard are listed in table 1. BSI 1997

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