An Roth


An Roth is a special interest group for those with a passion for the Irish Language, providing CPD and networking events for engineers.

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An Roth in the Engineers Journal

Part II: role of aluminium oxide content of GGBS on concrete in exposure to sulphate and acid environments

  This, the final part of a two-part paper, presents data on engineering properties such as compressive strength, water absorption, expansion and visual change of mortar specimens incorporating GGBS addition, subjected to severe sulfate attack and cured at 20◦C. Specimens with 50 per cent replacement level of GGBS addition from two different sources,  were immersed in magnesium sulfate solutions with 10 per cent of concentration for periods of up to 150 days. The experimental results ...

Our digital future will be a game changer, says Rudden

“We are moving from the age of carbon to the age of silicon,” Dr Brian Motherway, CEO, Sustainable Energy Authority of Ireland (SEAI), told the UCD Engineering Graduates Association autumn panel discussion, which also also heard from Vodafone CEO Anne O’Leary, Google vice-president (EMEA) and CEO Ireland Ronan Harris, IBM research director Dr Eleni Pratsini and Atlantic Bridge investment director Dr Helen McBreen. "There will be 80 billion devices in the world by 2020 in our homes, ...

The role of aluminium oxide content of GGBS on concrete in exposure to sulphate and acid environments

Over the last years great effort has been made in order to substitute clinker for less energy and low CO2 demanding materials. In many countries, it is popular to use GGBS as an additive material to meet these requirements and to improve the durability of concrete. The construction industry needs durable materials with improved properties. Following this objective, this work is a part of an ongoing project developed in the materials laboratory of  Casey Concrete, Co Wexford, in ...

The trials, tribulations - and certain joys - on the road to compliance with EN 1090

Author: John Hennessy, is managing director of Hentech Fabrication Limited, an SME based in Co Wexford. The bulk of its work is in the area of fabricating stairs and access platforms, plant support steelwork, small structures, balustrades and railings. He has been in the fabrication business for about 25 years and is a fitter/fabricator by trade In late 2013 we became aware of the fact there were a raft of new requirements been brought into place in the construction industry. After ...

Sound insulation and implications regarding Building Regulations

  Author: Chris Dilworth, director of acoustics at AWN Consulting Limited, chartered and European engineer The Department of the Environment, Community and Local Government (DECLG) published new Building Regulations pertaining to sound in December 2014. An updated and enhanced Technical Guidance Document (TGD) E Sound followed in January 2015. The key aspects of the new guidance may be summarised as follows: For the first time in Ireland, minimum standards of sound insulation ...

Wind energy: the good, the bad and the policy

  Author: Dr Paul Deane, Environmental Research Institute, University College Cork Wind energy is a hot topic when it comes to discussions on Ireland’s current and future energy mix. While arguments about wind energy in the media are often distilled down to simple soundbites (where it is either the best decision or the worst decision for the country), the actual arguments for or against are a lot more nuanced and complicated... this is wind energy, the good, the bad and the ...

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