define contaminants - underwater inspection of
Define Contaminants - underwater inspection of bridge?
There are various substances that may be inadvertently incorporated into the concrete matrix (e.g. glass, coal, gypsum), which can react with the cement in the presence of seawater.
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define carbonation - underwater inspection of bridgecarbon dioxide is present in the air and attacks the concrete directly it has the effect of
a first order reaction takes 693 minutes for 50 completionset up an equation for determining the time needed for 80 completion of this
define alkali aggregate reaction - chemical deteriorationsometimes high alkali cement reacts with minerals in certain aggregates and forms expansive
illustrate with examplesa lyophilic and lyophobic solsb multimolecular and macromolecular colloidsc homogeneous and heterogeneous
define contaminants - underwater inspection of bridgethere are various substances that may be inadvertently incorporated into the concrete matrix eg
define marine growth - underwater inspection of bridgegenerally in seawater marine growth takes place acid generated by the marine growth attacks
a write the structural formula of 3-phenylprop-2-enalb write one chemical equation each to illustrate the following reactionsi aldol condensationii
define masonry substructure- underwater inspection of bridgein early days masonry particularly stone masonry was extensively used for bridge piers
a assign a reason for each of the following statementsi alkylamines are stronger bases than arylaminesii acetonitrile is preferred as solvent for
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