What do water reducing admixtures do and what are some examples of agents?
What will be an ideal response?
Water-reducing admixtures lower the amount of water needed to produce concrete of a given consistency. They can also be used to increase the amount of slump without requiring additional water. This makes for a lower water-cement ratio, resulting in greater concrete strength. Some water-reducing admixtures shorten set time and can cause increased drying shrinkage. Lignin solfonic acids and metallic salts are common water-reducing agents.
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Street lamp circuits may be connected in series or in ____________________.
Fill in the blank(s) with the appropriate word(s).
To gain an upper hand in the marketplace, firms like Summer Farms advertise that their
products are as good as or better than those offered by competitors.
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