Overview of the Pathology, Repair and Strengthening of Adobe Structures

Adobe construction is considered to be an important feature of the international architectural heritage. To achieve the effective preservation of culturally significant adobe structures, the factors that cause their deterioration should be recorded and understood and the result of potential restoration interventions should be evaluated. This study reviews the pathology of adobe structures and the various restoration methods currently in use. Focus is given on the main agents of adobe deterioration and commonly encountered decay mechanisms. The applicability and efficiency of several repair and strengthening techniques currently used in practice or proposed by academic researchers is critically discussed and the gaps that occur in the field of earthen masonry retrofitting are highlighted. An extensive list of references, which reflects the international knowledge and experience on the topic, is also provided.

[1]  E. Leroy Tolles,et al.  Seismic Stabilization of Historic Adobe Structures , 2000 .

[2]  Wander L. Vasconcelos,et al.  Microstructure and chemical degradation of adobe and clay bricks , 2009 .

[3]  James R. Clifton,et al.  ADOBE I: THE PROPERTIES OF ADOBE , 1978 .

[4]  J. Norton,et al.  Building with earth. , 1997 .

[5]  Jean-Claude Morel,et al.  Strength and elasto-plastic properties of non-industrial building materials manufactured with clay as a natural binder , 2009 .

[6]  Anna-Maria Vissilia,et al.  Adobe and Timber Ties as Main Construction Materials for an Historic Greek Dwelling , 2010 .

[7]  P. Theoulakis,et al.  STUDY FOR THE IN SITU PRESERVATION OF THE CLAY ARCHITECTURAL ELEMENTS FROM THE EXCAVATION OF THE NEOLITHIC SETTLEMENT OF DISPILIO, GREECE , 2010 .

[8]  J. Morel,et al.  Durability of rammed earth walls exposed for 20 years to natural weathering , 2009 .

[9]  Bernard Melchior Feilden,et al.  Conservation of historic buildings , 1984 .

[10]  E. Leroy Tolles Survey of damage to historic adobe buildings after the January 1994 Northridge earthquake , 1996 .

[11]  Victor M. Ferreira,et al.  Characterization of Renders, Joint Mortars, and Adobes from Traditional Constructions in Aveiro (Portugal) , 2010 .

[12]  Paul Graham McHenry,et al.  Adobe and Rammed Earth Buildings: Design and Construction , 1984 .

[13]  Miha Tomazevic,et al.  Earthquake-Resistant Design of Masonry Buildings , 1999 .

[14]  P. Lourenço,et al.  Handmade Clay Bricks: Chemical, Physical and Mechanical Properties , 2010 .

[15]  M. Veiga,et al.  Conservation of Adobe Walls – Rendering Mortars , 2008 .

[16]  A. A. Hammond Prolonging the life of earth buildings in the tropics , 1973 .

[17]  I. Ioannou,et al.  DYNAMIC FINITE ELEMENT ANALYSIS OF EARTH MASONRY STRUCTURES BASED ON EXPERIMENTAL MATERIAL DATA , 2011 .

[18]  H. Binici,et al.  Investigation of fibre reinforced mud brick as a building material , 2005 .

[19]  S. Lenci,et al.  Mechanical properties of adobe walls in a Roman Republican domus at Suasa , 2010 .

[20]  Junji Kiyono,et al.  Collapse Mechanism of Adobe and Masonry Structures During the 2003 Iran Bam Earthquake , 2004 .

[21]  Charles Selwitz,et al.  Chemical stabilization of adobe in the restoration of the Montano store , 1995 .

[22]  Özlem Çavdar,et al.  The effects of the fiber contents on the mechanic properties of the adobes , 2008 .

[23]  J. Douillard,et al.  On the cation dependence of interlamellar and interparticular water and swelling in smectite clays. , 2010, Langmuir : the ACS journal of surfaces and colloids.

[24]  Luis E. YAMIN,et al.  SEISMIC BEHAVIOR AND REHABILITATION ALTERNATIVES FOR ADOBE AND RAMMED EARTH BUILDINGS , 2002 .

[26]  P. Gazzola,et al.  The Venice Charter: International Charter for the Conservation and Restoration of Monuments and Sites , 1964 .

[27]  Gordon T. Pearson Conservation of Clay and Chalk Buildings , 2013 .

[28]  Neville Agnew,et al.  The Getty Adobe Research Project at Fort Selden: III. An evaluation of the application of chemical consolidants to test walls , 1990 .

[29]  Peter Walker,et al.  Strength and Erosion Characteristics of Earth Blocks and Earth Block Masonry , 2004 .

[30]  Peter Walker,et al.  The Australian Earth Building Handbook , 2002 .

[31]  Neville Agnew The Getty Adobe Research Project at Fort Selden: I. Experimental design for a test wall project , 1990 .

[32]  Luc Schueremans,et al.  Grouting as a repair/strengthening solution for earth constructions , 2009 .

[33]  Gernot Minke Earth Construction Handbook: The Building Material Earth in Modern Architecture , 2000 .

[34]  E. Leroy Tolles Seismic Stabilization of Historic Adobe Structures: Final Report of the Getty Seismic Adobe Project , 2000 .

[35]  M. R. Hall,et al.  Moisture ingress in rammed earth: Part 1—the effect of soil particle-size distribution on the rate of capillary suction , 2004 .

[36]  Kecun Zhang,et al.  An experimental study of the mechanisms of freeze/thaw and wind erosion of ancient adobe buildings in northwest China , 2007 .

[37]  John Norton,et al.  Building with earth. , 1997 .

[38]  Olivier Bildstein,et al.  Hydration sequence of swelling clays: evolutions of specific surface area and hydration energy. , 2009, Journal of colloid and interface science.

[39]  Luc Schueremans,et al.  Repair of earth masonry by means of grouting : importance of clay in the rheology of a mud grout , 2010 .

[40]  E. Leroy Tolles,et al.  Planning and Engineering Guidelines for the Seismic Retrofitting of Historic Adobe Structures , 2003 .