General Introduction. The two functional groups I deal with here are the C,C double bond and the C,C triple bond. In each case the group is named by changing the letter a in the suffix ane to e for the double bond and to y for the triple bond.otes: 1  Examples 1 and 2 show the use of E/Z for routine alkene structures for which cis/trans could have been used. 2  Examples 5 and 6 show how the rules require you to move down the chain away from the stereocentre (the double bond) until a difference is found. 3  Example 6 illustrates that the functional group named as a prefix takes precedence in ...
compressive strength Definition. The resistance capacity of any material, but especially structural members, to crushing force. Compressive strength is usuallyexpressed as the maximum number of pounds per square inch that can be resisted without failure.
CIP 35 - Testing Compressive Strength of Concrete WHAT is the Compressive Strength of Concrete? WHY is Compressive Strength Determined?Concrete mixtures can be designed to provide a wide rangeof mechanical and durability properties to meet the designrequirements of a structure. Most deviations from standard procedures for making,curing and testing concrete test specimens will result in alower measured strength. â¢ The range between companion cylinders from the sameset and tested at the same age should be, on average,about 2 to 3% of the average strength.