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Story
September 20, 1911
Edgefield Advertiser
Edgefield, Edgefield County, South Carolina
What is this article about?
Article by John A. Kemp explains that concrete is not the same as cement; it is a mixture of cement, sand, and stone or gravel in varying proportions for different uses, requiring skill for ideal durability.
Clipping
OCR Quality
98%
Excellent
Full Text
WHAT CONCRETE REALLY IS
Many People Have Idea That It Is Same as Cement, but There Is Vast Difference.
(By JOHN A. KEMP)
Many people have an idea that cement and concrete are the same. There is a vast difference between the two, because, in fact, cement is only one of the elements of concrete. Concrete is stone manufactured by mixing sand, cement and stone or gravel. The proportions vary according to the use to which the concrete is to be put.
The mixture in which all the spaces between the stone or gravel are filled with sand and all the spaces between the sand are filled with cement is the ideal mixture. Cement is a powder finer than flour.
The ideal mixture is rarely obtained as the spaces in each load of gravel and sand vary slightly, and in order to be absolutely safe, a little more sand and a little more cement than will exactly fill the spaces should be used.
Considerable skill is required in the mixing of concrete to obtain a substance that will meet all the requirements to which it is put, and its durability depends very largely upon the right proportions of sand, stone or gravel used.
CEMENT SAND CONCRETE
Concrete Mixture.
Many People Have Idea That It Is Same as Cement, but There Is Vast Difference.
(By JOHN A. KEMP)
Many people have an idea that cement and concrete are the same. There is a vast difference between the two, because, in fact, cement is only one of the elements of concrete. Concrete is stone manufactured by mixing sand, cement and stone or gravel. The proportions vary according to the use to which the concrete is to be put.
The mixture in which all the spaces between the stone or gravel are filled with sand and all the spaces between the sand are filled with cement is the ideal mixture. Cement is a powder finer than flour.
The ideal mixture is rarely obtained as the spaces in each load of gravel and sand vary slightly, and in order to be absolutely safe, a little more sand and a little more cement than will exactly fill the spaces should be used.
Considerable skill is required in the mixing of concrete to obtain a substance that will meet all the requirements to which it is put, and its durability depends very largely upon the right proportions of sand, stone or gravel used.
CEMENT SAND CONCRETE
Concrete Mixture.
What sub-type of article is it?
Curiosity
What keywords are associated?
Concrete
Cement
Mixture
Proportions
Sand
Gravel
Durability
What entities or persons were involved?
John A. Kemp
Story Details
Key Persons
John A. Kemp
Story Details
Many people mistakenly think cement and concrete are the same; concrete is a mixture of sand, cement, and stone or gravel with proportions varying by use; ideal mixture fills all spaces but rarely achieved, requiring extra materials and skill for durability.