On Thursday 8 November 2007 at 6pm at the International HQ of the Institution of Structural Engineers in London, Paul Jaquin, MEng of the website Historic Rammed Earth, will present a Study of historic rammed earth structures in Spain and India. Paul visited eight locations in northern Spain and three in northern India where he gained a greater understanding of historic rammed earth. Methods of construction, modes of failure and repair techniques were investigated. Use of rammed earth as a modern building material is increasing, and the study of historic structures can inform development of the technique today. A number of examples which are considered to be of interest to practising engineers are presented. The examples deal with the presence of water in earthen structures, cracking and methods of crack repair, the facing of rammed earth with a less permeable material, and medieval seismic protection measures. Refreshments will be served at 5:30. For more information download the lecture poster.