Santa Clarita Valley History In Pictures
> HISTORIC PRESERVATION

Preservation of HIstoric Concrete.


Abstract.

Concrete is an extraordinarily versatile building material used for utilitarian, ornamental, and monumental structures since ancient times. Composed of a mixture of sand, gravel, crushed stone, or other coarse material, bound together with lime or cement, concrete undergoes a chemical reaction and hardens when water is added. Inserting reinforcement adds tensile strength to structural concrete elements. The use of reinforcement contributes significantly to the range and size of building and structure types that can be constructed with concrete.

While early twentieth century proponents of modern concrete often considered it to be permanent, it is, like all materials, subject to deterioration. This Brief provides an overview of the history of concrete and its popularization in the United States, surveys the principal causes and modes of concrete deterioration, and outlines approaches to repair and protection that are appropriate to historic concrete. In the context of this Brief, historic concrete is considered to be concrete used in construction of structures of historical, architectural, or engineering interest, whether those structures are old or relatively new.


Download original pdf here.
HISTORIC PRESERVATION

SEE ALSO:
• City of Santa Clarita
• L.A. Conservancy


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DOI Standards 2017

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State Plan 2013/2017

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Grave Markers 2016

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Concrete 2007

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Landscape Maintenance 1998

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Landscapes 1994

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