ДСТУ EN 459-2:2022 Строительная известь. Часть 2. Методы испытаний (EN 459-2:2021, IDT)



ДСТУ EN 459-2:2022
(EN 459-2:2021, IDT)

 Будівельне вапно. Частина 2. Методи випробувань

 
     
Не є офіційним виданням.
Офіційне видання розповсюджує національний орган стандартизації
(ДП «УкрНДНЦ» http://uas.gov.ua)

Contents

European foreword

Introduction

1 Scope

2 Normative references

3 Terms and definitions

4 Sampling

4.1 General

4.2 Sampling of powdered material

4.3 Sampling of granular material

4.4 Sampling of lime putty and milk of lime

4.5 Preparation of the test portion

5 General requirements for testing

5.1 Methods of chemical analysis

5.2 Number of tests

5.3 Repeatability and reproducibility

5.4 Expression of masses, volumes, factors and results

5.5 Blank determinations

5.6 Reagents

5.7 Evaluation of test results

6 Chemical analysis

6.1 Extraction with hydrochloric acid (Reference method)

6.2 Fusion with lithium tetraborate (Alternative method)

6.3 Calcium oxide (CaO) and magnesium oxide (MgO)

6.4 Sulfate (expressed as SO₃)

6.5 Free water

6.6 Volumetric determination of carbon dioxide (CO₂) (reference method)

6.7 Gravimetric determination of carbon dioxide (CO₂) (alternative method)

6.8 Loss on ignition

6.9 Available lime

7 Physical tests

7.1 Particle size by dry sieving

7.2 Particle size by air-jet sieving

7.3 Bulk density

7.4 Soundness

7.5 Setting times

7.6 Reactivity

7.7 Yield

7.8 Standard mortar by mass and water demand for values of flow and penetration

7.9 Water retention

7.10 Determination of air content

7.11 Compressive strength

Annex A (informative) Example for the calculation of the results on sieving

Annex В (informative) Precision data for the test methods

Bibliography