The influence of supplementary cementitious materials on climate impact of concrete bridges exposed to chlorides

• In order to reach a specific service life of reinforced concrete structures a certain cover thickness is needed. At present, this is regulated by national standards that also limit the amount and type of supplementary cementitious materials in different exposure environments. The regulations do not, however, consider the actual durability performance of concrete with supplementary cementitious materials. As a consequence, the LCA results might be misleading. This paper shows the environmental impact of concrete with supplementary cementitious materials in chloride environment considering their specific performances. Prescriptive and performance based service life prediction models for chloride ingress are applied and compared.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Samhällsbyggnadsteknik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Civil Engineering (hsv//eng)

Nyckelord

Bridge

Chloride ingress

Climate impact

Corrosion

Durability

LCA

Service life

Supplementary cementitious materials (SCM)

Sustainability

Bridges

Chlorine compounds

Reinforced concrete

Sustainable development

Chloride environment

Climate impacts

Durability performance

Exposure environment

Performance based

Service life prediction

Supplementary cementitious material

Environmental impact

Publikations- och innehållstyp

ref (ämneskategori)

art (ämneskategori)