n Journal of the South African Institution of Civil Engineers - Structural aspects of labour-intensively constructed, uncut stone masonry arch bridges In , 37 (3) 1995, pp.12-17 : discussion

Volume 38, Issue 2
  • ISSN : 1021-2019



A labour-intensive technique for constructing arch bridges using uncut stones and mortar was recently used very effectively. However, at present little is known about the strength and behaviour of the material or the structural form. This paper considered other work that had been done to define the information required to quantify the structural performance. A pilot study was described, in which large size cube tests were used to measure the compressive strength of the stone-mortar matrix. This indicated that the composite strength is lower than the mortar strength, and also that the orientation of the stones is important. A method of measuring the live-load induced stresses in these structures was described and the measured stresses were discussed. Finally, an outline was sketched of further research being undertaken.

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