Sharp sand
Sharp sand, also known as grit sand or river sand and as builders' sand when medium or coarse grain, is a gritty sand used in concrete and potting soil mixes or to loosen clay soil[1] as well as for building projects. It is not cleaned or smoothed to the extent recreational play sand is. It is useful for drainage.[2] It is an angular grained sand.[3] It was used in the production of brass.[4] It is now used in the building trade. Eskers are a source.[5]
References
- ↑ https://davesgarden.com/guides/terms/go/805/#b
- ↑ livingearth.net Sharp Sand | Living Earth Texas
- ↑ https://www.merriam-webster.com/dictionary/sharp%20sand
- ↑ https://books.google.com/books?id=4OlTAAAAYAAJ&pg=PA493&dq=sharp+sand&hl=en&sa=X&ved=2ahUKEwiOmIP0hNbkAhXEIDQIHX6-CTE4ChDoATAHegQIARAx#v=onepage&q=sharp%20sand&f=false
- ↑ https://books.google.com/books?id=k7PNQolZtF4C&pg=PA35&dq=sharp+sand&hl=en&sa=X&ved=2ahUKEwjHr_qyhdbkAhU9GDQIHRKmBVU4FBDoATAGegQIARAq#v=onepage&q=sharp%20sand&f=false
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