Excerpt from Forensic Analysis of Building Materials Obtained by Core Drilling, Fort Sumter National Monument: June 26, 2012
The materials included clay bricks, masonry mortar, and concrete all of 1850 vintage as used in the Fort construction. The bricks were found to be of two types with the majority of bricks being the Charleston Grey type that also constitute the outer Fort walls. Bricks called Charleston Browns were also found in this study. The masonry mortars were constituted of sand, lime, and natural cement (aka historic Rosendale cement). While the original Fort was designed with through the wall brick masonry construction, tabby concrete infill was used within the walls to speed construction, as motivated by foreign threats of the era.
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HRD. Condition: New. New Book. Shipped from UK. Established seller since 2000. Seller Inventory # LX-9780366419449
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