TY  - Journal Article
AU  - Garcia-Calvo, J.L.
AU  - Perez, G.
AU  - Carballosa, P.
AU  - Erkizia, E.
AU  - Gaitero, J.J.
AU  - Gerrero, A.
TI  - Development of ultra-high performance concretes with self-healing micro/nano-additions
PY  - 2017
PB  - ELSEVIER SCI LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
AB  - UHPC are developed in present paper incorporating an innovative self-healing system based on two
micro/nano-additions: silica microcapsules containing epoxy sealing compound (CAP) and amine functionalised silica nanoparticles. Although CAP are well integrated within the cementitious matrix, their inclusion promotes a reduction in the mechanical performance so CAP could act as weak points.
However, the inclusion of these additions refines pore distribution thus increasing the expected durability in aggressive media. An effective autonomous self-healing capacity is assessed/confirmed which is unexpectedly higher in the concretes with the lower healing additions content studied. This capacity depends on the crack width and the healing period considered.
SN  - 0950-0618
UR  - http://hdl.handle.net/11556/369
DX  - 10.1016/j.conbuildmat.2017.02.015
ER  -