EN 934-1-2008 pdf download.Admixtures for concrete , mortar and grout – Part 1 : Common requirements.
This EN 934-1 specifies the common requirements for all admixtures covered by EN 934-2, EN 934-3, EN 934-4 and EN 934-5, which contain the specific requirements for each type of admixture.
The requirements for corrosion behaviour are not applicable to chloride based admixtures,
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
EN 196-2, Methods of testing cement – Part 2: Chemical analysis of cement
EN 197-1, Cement – Part 1: Composition, specifications and conformity criteria for common cements
EN 206-1:2000, Concrete – Part 1: Specification, performance, production and conformity
EN 480-6, Adrnvxtures for concrete, mortar arid grout — Test methods — Part 6: Infrared analysis
EN 480-8, Admixtures for concrete, mortar and grout — Test methods — Part 8: Determination of the conventional dry material content
EN 480-10, Admixtures for concrete, mortar and grout – Test methods – Part 10: Determination of the water soluble chloride content
EN 480-12, Admixtures for concrete, mortar and grout — Test methods — Part 12: Determination of the alkali content of admixtures
EN 480-14, Admixtures for concrete, mortar and grout — Test methods — Part 14: Determination of the effect on corrosion susceptibility of reinforcing steel by potentioslatic electra-chemical test
EN 934-2, Admixtures for concrete, mortar and grout – Part 2: Concrete admixtures — Definitions, requirements, conformity, marking and labelling
EN 934-3, Admixlures for concrete, mortar and grout — Part 3: Admixtures for masonry mortar — Definitions, requirements, conformity. marking and labelling
EN 934-4, Admixtures for concrete, mortar and grout — Part 4: Admixtures for grout for prestressing tendons – Definitions, requirements. conformity, marking and labelling
EN 934-5. Admixtures for concrete, mortar and grout — Part 5: Admixtures for sprayed concrete – Definitions, requirements, conformity, marking and labelling
EN ISO 1158. Plastics – Vinyl chloride homopolymers and copolymers – Determination of chlorine content
(ISO 1158:1998)
ISO 758. Liquid chemical products for industrial use — Determination of density at 20 degrees C
ISO 4316, Surface active agents — Determination of pH of aqueous solutions — Potentiometric method
3 Terms and Definitions
For the purposes of the document, the following terms and definibons apply.
common requirements
requirements that apply to all admixtures within the scope of EN 934-2, EN 934-3, EN 934-4 and EN 934-5
3.2
general requirements
requirements that charactense the admixture by physical and chemical measurements and that apply to all admixtures within the scope of EN 934-2. EN 934-3, EN 934-4 and EN 934-5
3.3
specific requirements
requirements detailed in EN 934-2, EN 934-3, EN 934-4 or EN 934-5, which characterise the performance of the admixture In a cementihous mix
3.4
special requirements
requirements which apply to admixtures within the scope of EN 934-2. EN 934-3, EN 934-4 and EN 934-5 in relation to their effect on the environment or when used for specific applications
3.5
approved list
list of substances used as ingredients in admixtures that are accepted for use without the need for further testing in relation to the property stated in the list
NOTE Approved lists are specific to a requirement detailed in this standard.
3.6
declared list
list of substances used as ingredients in admixtures that do not have to be tested in relation to the property stated in the list but have to be declared because, in some countries, they are subject to national restrictions on their use for certain applications
4 General requirements
All admixtures within the scope of EN 934-2. EN 934-3. EN 934-4 and EN 934-5 shall conform to the requirements of Table 1
5 Corrosion behaviour
5.1 Testing and labelling
No testing for corrosion behaviour is required for admixtures containing only substances on the appfoved list
A.1 and declared hst A.2.
Admixtures containing any substances not on the approved list A.1 or declared list A.2 shall be tested in
accordance with EN 480-14 and meet the test requirement in 5.2.
Admixtures containing substances on the declared list A.2 shall have the names of the substances dedared on the label.
NOTE For admixtures containing chloride and chlorine the requirements of Table 1, rows 7 and 8 apply.
5.2 Test requirement
When tested in accordance with EN 480-14 the calculated current density of each of three test mix specimens shall not exceed 10 jiA/cm2 at any time between 1 h and 24 h. In addition there shall be a similar trend In the progression of the current density vs. time curves for the control mix and the test mix.
6 Special requirements
NOTE Special requirements are currently being drafted by an Expert Group of the European Commission responsible for Construction Products in contact with Drinking Water. The requirements for admixtures. which are sold into concrete for drinking water applications, will be added to this European standard by amendment when they become available.EN 934-1-2008 pdf download.
EN 934-1-2008 pdf download
PS:Thank you for your support!
