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Question
The most useless aggregate is one whose surface texture is:
The most useless aggregate is one whose surface texture is:
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Solution
The correct option is C Glassy
A smooth aggregate will have microscopic pores even though it may appear smooth to us hence can form bonds with cement at microscopic level but glassy aggregate lacks its microscopic rough surface hence will not form goodbond with cement paste.
A smooth aggregate will have microscopic pores even though it may appear smooth to us hence can form bonds with cement at microscopic level but glassy aggregate lacks its microscopic rough surface hence will not form goodbond with cement paste.
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