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I SAVED THOUSANDS $$$ NOT USING ZIP SYSTEM
Love Freedom? It is OK to Hate You - Part 1 (first published May 2020)
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Some DIYers unfamiliar with concrete wonder if you can make concrete without the use of gravel.
No, you cannot make concrete without gravel. The ingredient mix of 1 part cement, 2 parts sand, and 3 parts gravel (stone) is what makes up concrete. Without gravel, concrete would not be strong or be able to be used as a foundation or base that could withstand heavy loads.
This answer is a little simplistic, and there is a lot more to concrete than the gravel and sand that goes into it. Here, we'll get into what makes up concrete, how to combine the perfect concrete mix, and what substitutes you can use for gravel.