Portland Cement

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C-S-H is actually an amorphous gel with a highly variable stoichiometry. The ratio of C to S, for example, can range from 1:1 to 2:1, depending on mix design and curing conditions. Structural properties. The strength developed by portland cement depends on its composition and the fineness to which it is ground...
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The C3S is mainly responsible for the strength developed in the first week of hardening and the C2S for the subsequent increase in strength. The alumina and iron compounds that are present only in lesser amounts make little direct contribution to strength...
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Capacitors A capacitor is a device used to store charge in an electrical circuit. The function of a capacitor is much similar to a battery, but it charges and discharges much more efficiently...	4 / 881
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