Concrete
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Making
- foundation slab
- Trowel machine
Finished structures
- Cinder block (showing aggregate), mortar, and cast concrete.
- Flower pot, probably made by employees at the norwegian cement mill at Slemmestad
- earthquake rubble training
Pump
Pre-casting
Post-casting, broken open
- Fractured seismic test specimen.
- Burst seismic test specimen.
- reinforcement
- reinforcement
- reinforcement
Post-casting, cut open
- Sidewalk, ground down for safety, exposing gravel aggregate.
- English: Minor casting defects.Nederlands: Kleine gietfoutjes.
- microstructure
- calcite additive
- recycled materials
Joints
- Perimeter slab edge joint with incomplete firestop.
Through-penetrations
Main Gallery: Firestop
- Concrete structures often have a fire-resistance rating, due to concrete's excellent fire-resistance. Openings must be firestopped to comply with building codes in order to restore the rating of the assembly.
- Unsealed cable through-penetration in control room of coal-fired power plant.
- Unsealed cable through-penetration in control room of coal-fired power plant.
- Unsealed cable through-penetration in control room of coal-fired power plant.
- Firestopped bathtub drain penetration.Deutsch: Abschottung des Durchbruches einer Wasserabflußleitung durch Brandschutzmörtel
- Cross barrier in a German power plant using firestop mortar.
- Cross barrier fire test in Germany
- Fire test with a firestop mortar inside a concrete floor slab.
Secondary efflorescence
- Secondary efflorescence: Osteoporisis of the concrete.
- Secondary efflorescence. The red marks are rust (iron oxide) from rebar.
Counterweights
- 33 t counterweight
History
- Hennebique House (1894-1904 build) first concrete building in France. Bourg-la-Reine
The “Cathedral” building and the Pont Hardi of the Menier chocolate factory, built in 1906 in a specific reinforced concrete (béton fretté), Noisiel, France.- earthquake
- earthquake
- earthquake