Qualitative and quantitative study to assess the use of rammed earth construction technology in Perth and the south-west of Western Australia

During the last decades, rammed earth technology has been explored worldwide because of a growing concern for sustainable constructions. A relevant, contemporary technical culture of rammed earth developed in the south-west of Western Australia (WA) from the 1970 s. Several examples of residential, educational, commercial and community buildings in the region were built in rammed earth during the last 40 years. An active group of professionals involved in rammed earth construction operates in the region. This study assesses the state of the art of rammed earth construction practice in the south-west of WA based upon a qualitative and quantitative questionnaire to the professionals involved in the local rammed earth construction industry. The questionnaire collects data on five major technical areas: (i) strengths and weaknesses of rammed earth technology; (ii) opportunities and deterrents to employ rammed earth in the south-west of WA; (iii) rammed earth materials and on-site equipment and construction process; (iv) aesthetic and design qualities of rammed earth buildings; and (v) thermal performance of rammed earth buildings. The study's objective is to analyse the potential of the rammed earth technology within the local construction sector, engaging the local industry to identify the paths for further development of the current guidelines.