![]() | This article has multiple issues. Please help
improve it or discuss these issues on the
talk page. (
Learn how and when to remove these template messages)
|
According to the Equivalent Concrete Performance Concept a concrete composition, deviating from the EN 206-1, can still be accepted, provided that certain conditions are fulfilled.
A concrete composition not composed by the standard EN 206–1, can be acknowledged, only if the new concrete shows a performance equal to the standardized concrete concerning environmental classes. Cement content and water-cement ratio are important elements hereby. The comparison with standardized concrete is tested according to the following properties:
When the new concrete scores equally or better, a certificate of utilization can be obtained from certificating organizations.
The valid standards concerning concrete are:
These national annexes serve to elaborate the functional description of the Equivalent Concrete Performance Concept.
Standardized
concrete is a highly
durable material, predominantly thanks to the increasing amount of
cement at stricter environmental classes. But
cement is a costly component and has a relatively powerful impact on the
environment.
Partly because of this, alternative
binders such as
fly ashes and
slags are applied in the
concrete sector. As a result, the content of
Portland cement can be reduced in many cases. Other recycled
raw materials can also contribute to a more economic or less environmental polluting
concrete composition.
1. Usage of residual products from the
concrete industry, for example stone dust (from crushing
aggregates),
concrete
slurry (from washing mixers) or
concrete waste
2. Usage of residual products from other industries, for example
fly ash from
coal plants and
slags from the metallurgical industry
3. Usage of new types of
cement with reduced environmental impact (mineralized cement,
limestone addition, waste-derived fuels)
To respect the Kyoto Protocol, the CO2-emission should be reduced. Green concrete exists out of recycling or is composed is such a manner, that it is as environmental-friendly as possible. A few conditions before the term green concrete may be used:
![]() | This article has multiple issues. Please help
improve it or discuss these issues on the
talk page. (
Learn how and when to remove these template messages)
|
According to the Equivalent Concrete Performance Concept a concrete composition, deviating from the EN 206-1, can still be accepted, provided that certain conditions are fulfilled.
A concrete composition not composed by the standard EN 206–1, can be acknowledged, only if the new concrete shows a performance equal to the standardized concrete concerning environmental classes. Cement content and water-cement ratio are important elements hereby. The comparison with standardized concrete is tested according to the following properties:
When the new concrete scores equally or better, a certificate of utilization can be obtained from certificating organizations.
The valid standards concerning concrete are:
These national annexes serve to elaborate the functional description of the Equivalent Concrete Performance Concept.
Standardized
concrete is a highly
durable material, predominantly thanks to the increasing amount of
cement at stricter environmental classes. But
cement is a costly component and has a relatively powerful impact on the
environment.
Partly because of this, alternative
binders such as
fly ashes and
slags are applied in the
concrete sector. As a result, the content of
Portland cement can be reduced in many cases. Other recycled
raw materials can also contribute to a more economic or less environmental polluting
concrete composition.
1. Usage of residual products from the
concrete industry, for example stone dust (from crushing
aggregates),
concrete
slurry (from washing mixers) or
concrete waste
2. Usage of residual products from other industries, for example
fly ash from
coal plants and
slags from the metallurgical industry
3. Usage of new types of
cement with reduced environmental impact (mineralized cement,
limestone addition, waste-derived fuels)
To respect the Kyoto Protocol, the CO2-emission should be reduced. Green concrete exists out of recycling or is composed is such a manner, that it is as environmental-friendly as possible. A few conditions before the term green concrete may be used: