Cementitious foams and foam slurries

C - Chemistry – Metallurgy – 04 – B

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C04B 16/08 (2006.01) C04B 20/00 (2006.01) C04B 38/00 (2006.01)

Patent

CA 2762248

Lightweight cementitious foams of the invention have excellent dynamic and dimensional stability due to use of foaming system comprising polycarboxylate surfactant foam generating agent, foam stabilizer (e.g., PVOH), and shrinkage reducing admixture to inhibit plastic shrinkage and micro-cracking of cement. The foaming system can be used in conventional cement mortars or concretes as well as with exemplary cementitious slurry systems of the invention, which include an expansive agent, a cross-linking agent for the foam stabilizer. Microfibers can be used in the foam, slurry, or both, to prevent micro-cracking. Cementitious foams can be made without use of autoclave or lightweight aggregates to achieve enhanced compressive strength and thermal insulation properties that compare favorably with conventional foams and insulation materials at comparable densities.

L'invention concerne des mousses cimentaires légères qui présentent une stabilité dynamique et dimensionnelle excellente due à l'utilisation d'un système moussant comprenant un agent générant une mousse tensioactive polycarboxylate, un stabilisateur de mousse (par exemple PVOH), et un mélange réducteur de retrait pour inhiber le retrait du plastique et le microfissurage du ciment. Le système moussant peut être utilisé dans des mortiers de ciment ou des bétons classiques et avec des systèmes de boues cimentaires exemplaires selon l'invention, qui comportent un agent expansif, un agent de réticulation pour le stabilisateur de mousse. On peut utiliser des microfibres dans la mousse, la boue ou dans les deux à la fois, pour empêcher le microfissurage. On peut obtenir des mousses cimentaires sans utiliser d'agrégats légers ou autoclavés pour obtenir de meilleures propriétés de résistance à la compression et d'isolation thermique qui rivalisent avantageusement avec les mousses et les matériaux d'isolation classiques.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Cementitious foams and foam slurries does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cementitious foams and foam slurries, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cementitious foams and foam slurries will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1986916

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.