New Concrete Products Flashcards
used for roofs,
poured mixture on reinforcing mat’l.
purlins support fiber plank or rigid insulation. wire mesh over this,
gypsum poured over min 2.5” thick.
highly fire-resistant.
Precast gypsum planks w tongue-and-groove edges in 2 & 4” thickness, up to 10’.
Poured Gypsum Decks
precast product, adding aluminium powder
Autoclaved Aerated Concrete (AAC)
blocks 10” high x 25” long x 4/8/10” thickness
Autoclaved Aerated Concrete (AAC)
uses epoxy-coated mesh.
precast panels thinner/lighter non-corrosive (less concrete req’d to cover)
thus, req smaller foundations/reduce transportation costs/speed erection process.
Carbon Fiber Concrete
⅕ density of conventional
Autoclaved Aerated Concrete (AAC)
gains strength by curing through ________ (vs. drying)
chemical reaction
can be placed purely by it’s own weight (vs vibration).
uses superplasticizer (polycarboxylate polymer)
flows easily around dense reinforcement
more uniform + smooth surface
faster
Self-Consolidating Concrete (SCC)
good sound control qualities/thermal mass/ greater airtightness than wood stud walls
Autoclaved Aerated Concrete (AAC)
gains __% strength during 1st week
70%
extruded to ultrathin fibers,
bundles into yarn like called tows,
laid in grid, intersections bound by heat-cured epoxy resin.
o.4” thick.
components of grid can be shifted to varying dimensions/strengths,
typ. 7x tensile strength standard steel mesh.
Carbon Fiber Concrete
unreinforced and reinforced panels produced for use as floor/roof/wall panel
Autoclaved Aerated Concrete (AAC)
critical moisture/temp maintained in
min 7day - 2 weeks.
resistant to insects, rodents and mold
Autoclaved Aerated Concrete (AAC)
if not cured completely, could lose up top:
30% strength
must be kept from freezing, or can lose up to
b/c curing heats, cover w/ insulated plastic for few days
50% strength
