Sand and coarse material and proportioning concrete
Date published

1 April 1915

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Standard: £9 + VAT
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Sand and coarse material and proportioning concrete

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Author
Date published
1 April 1915
Price

Standard: £9 + VAT
Members/Subscribers: Free

The Structural Engineer
Date published

1 April 1915

Price

Standard: £9 + VAT
Members/Subscribers: Free

In correctly made concrete the amount of sand should be just sufficient to fill the voids in the coarse material, and the amount of cement just sufficient to fill the voids in the mixture of sand and coarse material and to coat all the particles with very thin jointing layers. It is a rational assumption that such concrete will give the maximum of strength with the minimum of cost, and if such assumption be justified by experimental results it follows at once that the proportioning of concrete-forming materials is of the utmost importance. Greater strengths can be obtained by the use of excess of cement, as in the case of the ordinary mix of 1-2-4., but the increase in strength is less than the increase of cost of materials, and is, therefore, only justified in particular cases. John A. Davenport

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Format:
PDF
Publisher:
The Institution of Structural Engineers