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Sprinkler branch pipe through-penetration with plastic sleeve - missing firestop in concrete fire separation. The space between the sleeve and the pipe is the annulus or annular space The annulus , or annular space , is the space between a penetrant and anything that surrounds it, such as the sides of an opening or a sleeve , as the case may be ...
Phellinus igniarius (syn. Phellinus trivialis), commonly known as the willow bracket, fire sponge, false tinder polypore, punk ash polypore, [1] or false tinder conk, [2] is a fungus of the family Hymenochaetaceae.
Fondu Fyre, sometimes called Fondue Fyre, is a refractory concrete developed for specialist application. Fondu Fyre is a heat and erosion resistant concrete developed during the Apollo space program. It was developed to withstand the supersonic plume of a rocket engine during launch and hot-fire tests [citation needed].
For unprotected concrete, the sudden endothermic reaction of the hydrates and unbound humidity inside the concrete generates pressure high enough to spall off the concrete, which falls in small pieces on the floor of the tunnel. Humidity probes are inserted into all concrete slabs that undergo fire testing to test for this, even for the less ...
Firewall residential construction, separating the building into two separate residential units, and fire areas Example of a firewall used to inhibit the spread of a fire at an electrical substation. A firewall is a fire-resistant barrier used to prevent the spread of fire. Firewalls are built between or through buildings, structures, or ...
An andiron, firedog, fire-dog, fire dog or iron-dog is a bracket support, normally one of a pair, on which logs are laid for burning in an open fireplace, so that air may circulate under the firewood, allowing better burning and less smoke. They generally consist of a tall vertical element at the front, with at least two legs.
Drilled over 32,000 holes, lift and place over 8,000 30 kg support brackets, lift and place over 8,000 350 kg steel beams, emission free, 1,740 kWh, on-board battery power supply, mass of over 528 tonnes and HEPA filtered clean rooms, with controlled temperature 20 °C and humidity (<50Rh).
The low embodied energy of concrete by volume is offset by its rate of consumption which make the manufacture of cement accountable for some 5% of global CO 2 emissions. [5] Concrete is a fluid that offers the opportunity to economically create structures of almost any geometry - concrete can be poured into a mould of almost any shape.