Self-healing Concrete
Download
Report
Transcript Self-healing Concrete
Self-healing Concrete
Investigator’s Name – Arijit Bose, Students – Michelle Pelletier (G), Triparna Bhattacharya (G),
Sam Matus (UG), Amy Gibson (UG); School - URI
Purpose/ Relevance: Develop construction material (concrete) that can recover
mechanical strength after initial damage
Innovation: Provide capsules containing healing material within concrete that break
when crack passes through it, releasing healing material into crack and partially healing
it.
This Year outcome: Demonstrated 25% recovery of maximum loading to failure after
initial failure. Controls gave recovery of less than 10%.
Long-range impact: Improved lifetime for concrete; reduced environmental impact as
concrete processing releases CO2.
(a)
(b)
Load versus displacement (extension) for flexural strength characterization of control
(a) and capsule-containing (b) samples.
Self-healing Concrete
Investigator’s Name – Arijit Bose, Students – Michelle Pelletier (G), Triparna Bhattacharya (G),
Sam Matus (UG), Amy Gibson (UG); School - URI
Education Students Present & Graduate: Michelle Pelletier (MS 2010), Triparna
Bhattacharya (MS 2012), Sam Matus (BS/BA 2011), Amy Gibson (BS/BA 2011)
Papers/Patents/Presentations: Self-healing concrete with a microencapsulated
healing agent, M. Pelletier, A. Shukla, R. Brown, A. Bose, submitted to Cement and
Concrete Research, February 2011.
Self healing Concrete – Provisional US patent 61358435 filed on June 25, 2010.
Self healing Concrete, IMPLAST 2010, Providence, RI, October 2010.
Transition to Industry or Collaboration with Industry: Working currently with
BASF, W.R. Grace, CEMEX (Switzerland).
interactions with industry
Foresight Technologies is handling all
Next Year: Role of capsule loading and size on yield strength; characterization of
capsule containing sample under dynamic loading conditions; multiple load-release
cycle (fatigue) characterization