EN 14227-12:2006

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Hydraulically bound mixtures - Specifications - Part 12: Soil treated by slagMélanges traités aux liants hydrauliques - Spécifications - Partie 12: Sol traité au laitierHydraulisch gebundene Gemische - Anforderungen - Teil 12: Bodenverbesserung mit granulierter HochofenschlackeTa slovenski standard je istoveten z:EN 14227-12:2006SIST EN 14227-12:2006en93.080.20ICS:SLOVENSKI
STANDARDSIST EN 14227-12:200601-julij-2006

EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 14227-12May 2006ICS 93.080.20 English VersionHydraulically bound mixtures - Specifications - Part 12: Soiltreated by slagMélanges traités aux liants hydrauliques - Spécifications -Partie 12: Sol traité au laitierHydraulisch gebundene Gemische - Anforderungen - Teil12: Bodenverbesserung mit granulierter HochofenschlackeThis European Standard was approved by CEN on 3 February 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2006 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14227-12:2006: E

Examples of ‘age of classification’ and curing regimes for Rc, Rt and E testing of treated soils including resistance to water testing by full immersion in water.15 Annex B (informative)
Production control for hydraulically treated mixtures.16 Bibliography.22

Accelerated swelling test for soil treated by lime and/or hydraulic binder

EN 14227-2 that has not been ground, although the user should be aware that mixtures containing such slag rely for their performance on crushing of the slag between soil particles under rolling which may not be achieved with some soil types. 5.2 Soil Not less than 95 % of the soil shall pass the 63 mm sieve when tested using wet sieving in conformity with EN 933-1. The soil shall conform to classification and homogeneity requirements at the place of use. NOTE 1 Organic matter can delay the setting and hardening process. Laboratory mixture design work will determine whether soil/material containing organic matter can be accommodated. The amount of organic matter that can be accommodated depends on the type of organic matter. NOTE 2 Soil containing or suspected of containing sulphates can result in expansion of the mixture. Laboratory mixture design work including ‘resistance to water testing’ in accordance with this European Standard will determine if sulfates or other material with the potential to cause swelling can be accommodated. 5.3 Water Water shall not contain components that adversely affect the setting, hardening and performance of the mixture. 5.4 Other constituents Other constituents shall include lime in conformity with EN 14227-11, cement in conformity with EN 197-1, aggregate, gypsum, ground or crushed air-cooled steel slag or other materials that are either necessary for setting and hardening of the mixture or to improve workability, trafficability or performance. NOTE Other constituents include those that are necessary for the setting and hardening of the slag e.g. a source of lime and or sulfate, and those constituents that are added to improve workability, traffickability and or performance of the mixture e.g. aggregate.

7.2 Degree of pulverization When required, the degree of pulverization of the mixture shall conform to one of the categories in Table 2. Table 2 — Degree of pulverization Degree of pulverization
determined in accordance with EN 13286-48 Category ≥ 30 % P30 ≥ 40 % P40 ≥ 50 % P50 ≥ 60 % P60 Declared value PDV

7.4 Moisture condition value When required, the moisture condition value of the mixture, determined in accordance with EN 13286-46, shall conform to one of the categories in Table 4. Table 4 — Moisture condition value Moisture condition value
Category 6 minimum, 10 maximum MCV6/10 7 minimum, 11 maximum MCV7/11 8 minimum, 12 maximum MCV8/12 9 minimum, 13 maximum MCV9/13 Declared values MCVDV
8 Laboratory mechanical performance classification 8.1 General The laboratory mechanical performance of the mixture shall be characterized and classified by one of the following three methods:  by California bearing ratio CBR;  by compressive strength Rc;  by the combination Rt, E of tensile strength Rt and modulus of elasticity E. NOTE No correlation is intended nor should be assumed between the 3 methods of characterization.

8.3 Classification by compressive strength Mixtures shall be classified by compressive strength determined in accordance with EN 13286-41 carried out on specimens manufactured in accordance with EN 13286-50 to EN 13286-53. The class of compressive strength shall be selected from Table 6 in combination with the selected method of specimen manufacture. NOTE 1 The permit
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