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Mortar Mix and Historic Mortar Demystified

This is a perfect example of heading off a distastrous and expensive restoration project by making sure you have done a correct mortar analysis with the existing mortar so you can match it.

Various Sands for Comparision / Matching Historic Mortar

The traditional volume mix design of 1 part lime putty to 3 parts sand may be insidious to follow straight up without more details. First, mix designs historically used quicklime as the 1 part of lime mixed to the 3 parts of sand by volume. Quicklime when it is slaked with water will increase volumetrically 70-100 percent – or basically double its size. This fact would reduce the sand content closer to that of a 1 part lime to 1.5 parts sand – a much sticker richer mix design.

Secondly, sand must be measured in a damp loose condition according to ASTM C270 when mixing mortar. Dried sand will bulk up to 30 percent and grow volumetrically by the addition of a small amount of water. This can send your mortar mix designs at the construction site off the specified requirements.

via: Measuring and Mixing Historic Mortar

 

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Stucco Homes Lime Putty Results – Restoration and Preservation

The Casa de Estudillo in Old Town San Diego is a historic adobe house in Old Town San Diego in San Diego, California. Constructed in 1827, it was once considered one of the finest houses in Mexican California. The house has recently been undergoing restoration on the exterior walls.

A beautiful example of stucco preservation and restoration that the correct Architectural Lime Putty Stucco Base & Finish Coat can produce. So you can see what can be done with Stucco Homes as well.

Casa de Estudillo
Before – By Bernard Gagnon (Own work) [CC BY-SA 3.0 or GFDL], via Wikimedia Commons
Casa de Estudillo Restoration
After

After Photos Courtesy of von Kurt/Lipsman:

Casa de Estudillo Restoration Casa de Estudillo Restoration Casa de Estudillo Restoration Casa de Estudillo Restoration Casa de Estudillo Restoration Casa de Estudillo Restoration Casa de Estudillo Restoration Casa de Estudillo Restoration

The post Estudillo House – Old Town San Diego, California appeared first on Saint-Astier.

via: Estudillo House – Old Town San Diego, California

If you have one of those Stucco Homes or stucco building type get your restoration Lime Putty and Mortar from the best – LancasterLimeWorks.com