The measure of a major arc is C10-448A-888484be x Â° $%# greater than 180, and equal to 360 minus the measure of the minor arc with the same endpoints. m âADB = 360 - mAB â = 360 - x A semicircle is an arc with endpoints that lie on a diameter.
Process Chemicals Corrosion. Chlorine. The flow rate of liquid chlorine through carbon steel pipework is restricted to 2 m/s to avoid removing the ferric chloride coating on the pipe surface which protects against erosion / corrosion of the carbon steel. Wet chlorine gas corrodes mild steel.
Corrosion of reinforcing steel and other embedded metals is theleading cause of deterioration in concrete. When steel corrodes, theresulting rust occupies a greater volume than the steel. This expan-sion creates tensile stresses in the concrete, which can eventuallycause cracking, delamination, and spalling (Figs.