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Concrete creep is essentially the sagging of concrete over time. Creep and shrinkage of concrete are two physical properties of concrete.The creep of concrete, which originates from the calcium silicate hydrates (C-S-H) in the hardened Portland cement paste (which is the binder of mineral aggregates), is fundamentally different from the creep of metals and polymers.
After sufficient setting and hardening of concrete (after 28 days), the progressive loss of capillary water is also responsible for the "drying shrinkage". It is a continuous and long-term process occurring later during the concrete life when under dry conditions the larger pores of concrete are no longer completely saturated by water. Thermal ...
Romans also made use of glass in construction with colored glass in mosaics and clear glass for windows. Glass came to be fairly commonly used in windows of public buildings. [ 2 ] Central heating in the form of a hypocaust , a raised floor heated by the exhaust of a wood or coal fire.
Many cars have a feature called "courtesy power on" which allows the windows to remain operational for a brief period after the key is taken out of the ignition, so that adjustments can be made without putting the key back in. Additionally, some vehicles offer the option to operate the windows from outside the car using a remote. [12]
While most internal combustion engines don't require time to warm up — even though many people like to hop into a warm vehicle — EV owners may need to take some action before getting on the road.
The alkali–silica reaction (ASR), also commonly known as concrete cancer, [3] is a deleterious internal swelling reaction that occurs over time in concrete between the highly alkaline cement paste and the reactive amorphous (i.e., non-crystalline) silica found in many common aggregates, given sufficient moisture.
It was a “don’t go home” moment, I was on my way home late, and accidentally pulled out on someone, yes that’s my fault, he blew the horn, but then kept following me, getting right up on ...
During the 1980s, the Lincoln Town Car had a version where the vent window would retract into the door separately from the primary side window, so that the vent window would always drop down first and was the last to return after the main window was rolled back up. The Toyota Century had vent windows that would pivot out, and were operated with ...