Articles authored by UoM staff

 

Recent Submissions

  • Dias, WPS [Article-Abstract]
    This paper describes a comprehensive programme of testing for strength, durability (sorptivity, carbonation, drying shrinkage, sulphate attack and chloride ingress) and fresh-state properties (slump, slump loss, setting ...
  • Dias, WPS; Subrahmanian, E; Monarch, IA [Article-Abstract]
    We identify four orthogonal dimensions along which information in engineering design organizations can be ordered, namely (i) the principle of ordering (top down vs. bottom up), (ii) the structure ...
  • Blockley, David; Dias, WPS [Article-Abstract]
    How can human beings learn to live well together? Two of the biggest challenges threatening human well-being and flourishing are climate change and global terrorism. Has engineering systems thinking anything to offer such ...
  • Dias, WPS; Dissanayake, Ranjith; Chandratilake, Ravihansa [Article-Abstract]
    Around 300 000 people were killed by the tsunami that followed the Sumatra–Andaman earthquake on Boxing Day 2004, making it one of the worst disasters in modern history. Up to 40 000 died in Sri Lanka alone, where around ...
  • Dias, WPS [Article-Abstract]
    Toughness is arguably a better metaphor than resilience to describe the characteristics of wider systems for which the term ‘resilience’ is currently employed. This argument is presented by describing the various features ...
  • Matzenberger, Julian; Hargreaves, Nigel; Raha, Debadayita; Dias, WPS
    The purpose of this paper is to outline different notions of the term resilience used in scientific disciplines and consequently explore how the concept can be applied to energy systems. The concept of resilience has ...
  • Dias, WPS
    The influence of mix constituents (including corresponding concrete grade), retarding and air entraining admixtures and PFA additives, and the effect of environmental factors on plastic shrinkage cracking of mortar specimens ...
  • Dias, WPS [Article-Abstract]
    The experimental programme described in this paper indicated that concrete grade and specimen preconditioning were the major factors influencing sorptivity, whereas specimen size and coating had relatively little effect. ...
  • Dias, WPS [Article-Abstract]
    The service life of a building depends mainly on its chief structural materials and the environment it is placed in. This paper collates the evidence from condition surveys conducted on some buildings with ages of up to ...
  • Dias, WPS; Dewapriya, MAN; Edirisooriya, EACK; Jayathunga, CG [Article-Abstract]
    Retarders are used to delay the setting time of concrete. Retarder overdosing is not an uncommon problem, but its effects are not well understood. In this study, laboratory tests were conducted to determine the effect of ...
  • Dias, WPS; Subrahmanian, E; Monarch, IA [Article-Abstract]
    Design practice and artifacts in engineering design organizations can be ordered along four orthogonal dimensions, namely (i) the principle of ordering (top down vs bottom up), (ii) the structure of ordering (aggregation ...
  • Kulasuriya, Chandana; Vimonsatit, Vanissorn; Dias, WPS [Article-Abstract]
    This paper presents the search of an approach to assess 'integral sustainability'of a new cement called 'Alkali Pozzolan Cement'(APC). It can also be considered as an investigation into the possibility of employing fundamental ...
  • Kulasuriya, Chandana; Vimonsatit, Vanissorn; De Silva, P; Dias, WPS [Article-Abstract]
    This paper describes the development of an environmentally friendly Alkali Pozzolan Cement (APC), a non-hazardous dry cement powder that incorporates a large percentage of fly ash but needs only ambient temperature curing ...
  • Dias, WPS [Article-Abstract]
    The effect of the marine environment on concrete depends on the climate and the zone of exposure. Degradation of concrete takes place due to a-self reinforcing permeation-chemical attack-cracking-permeation cycle.-Chemical ...
  • Dias, WPS
    It is argued that systems approaches from even different backgrounds can nevertheless end up with similar features, promoting the idea that such approaches are grounded in reality, as science is taken to be. The systems ...
  • Matzenberger, Julian; Hargreaves, Nigel; Raha, Debadayita; Dias, WPS [Article-Abstract]
    The scope of this document is to outline different notions of the term resilience used in the scientific literature and explore how the concept of resilience can be applied to energy systems. Thus the major questions to ...
  • Edirisinghe, DG; De Silva, MIA; Premachandra, JK [Article-Abstract]
    Blending of recycled scrap rubber such as reclaimed rubber with virgin rubber has increased over the last few years, especially in the manufacture of tyre components. The reason for this is the growing concern about the ...
  • Nissanka, NAID; Perera, ATD; Attalage, RA [Article-Abstract]
    With ever-increasing prices of energy, designing energy efficient buildings has become vital. which demands multidisciplinary effort including architectural and engineering aspects since the early designing stage to day ...
  • Karunaratne, PM; Firdhous, Mohamed [Article-Abstract]
    In the recent years, the entire world has seen a tremendous increase in the elderly population. Even though countries differ in the numerical criterion for defining the old age, the UN has agreed that the cutoff of 60+ ...
  • De Silva, W [Article-Abstract]
    This paper examines 'nature' in the form of natural landscape, focusing on Sri Lankan landscape. Natural landscape in this study is discussed as physical features, physical geography and topography of the earth surface ...

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