ДСТУ CEN/TR 16443:2022 Предпосылки просмотра EN 450-1:2005+A1:2007. Летучая зола для производства бетона (CEN/TR 16443:2013, IDT)



ДСТУ CEN/TR 16443:2022
(CEN/TR 16443:2013, IDT)

Передумови перегляду EN 450-1:2005+A1:2007.
Летуча зола для виробництва бетону

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

Contents

Foreword

Introduction

1 Scope

2 List of relevant references

3 General

3.1 General and objective

3.2 Structure of the report

4 Overview of requirements in EN 450-1:2005+A1:2007 and EN 450-1:2012

5 Background for modification of the requirements in EN 450-1

5.1 Definition of fly ash

5.2 Co-combustion materials

5.3 Loss on ignition

5.4 Free calcium oxide

5.5 Reactive silicon dioxide

5.6 Phosphate

6 Background for the statistical evaluation for assessment procedure by variables

7 Background for modification of test methods in EN 450-1

7.1 Chemical composition

7.2 Fineness wet/dry

8 Measures within EN 450-1 to assure fly ash quality

8.1 Production process

8.2 Quality control and conformity evaluation technical properties

8.3 Conformity evaluation toxicological and environmental aspects

9 Impact of co-combustion on the release of regulated dangerous substances

9.1 General

9.2 Overruling regulation regarding toxicological and environmental aspects

9.3 Environmental regulations (Leaching)

Annex A (informative) List of abbreviations

Annex B (informative) Generation of fly ash

B.1 The chain from fuel to fly ash, ready for use in concrete

B.2 Ash formation during combustion

Annex C (informative) Overview of tested fly ashes obtained from co-combustion

Annex D (informative) Calculated maximum co-combustion amounts

D.1 Objective

D.2 Method

D.3 Data

D.4 Results

Bibliography