Patent · US Active

Self-repairing concrete having carbamide resin polymer micro-capsules and method for fabricating same

US8389605B2 · kind B2 · utility

4Cited by
5References
10Claims
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Key dates

Filing dateOct 24, 2008
Grant dateMar 5, 2013
Priority date—
Expiry dateMar 16, 2029

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/2985
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

A self-repairing concrete includes carbamide resin polymer micro-capsules, in which the carbamide resin polymer micro-capsules are mixed for a fixed function of micro-cracks. The quality mixture ratio is: concrete/micro capsules/water=100:1-15:15-50. The manufacturing method is weighing a full amount of water in a container, adding carbamide resin polymer micro-capsules, stirring, until fully dispersed microcapsules; pouring the water into the mixing container, adding the corresponding quality of cement; stirring; adding sand and gravel filling materials, conducting worksite watering, ⅓ volume for each time, vibrating, and air exhausting; until the slurry filling mold.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.