...Maria Eduarda Maia; Fernando Artur Nogueira Silva; Nicole Pamela da Silva Nascimento; António Azevedo; J.M.P.Q. Delgado Purpose This work presents the results of an extensive experimental campaign with 240 concrete specimens, with and without pozzolan additive, to assess the effects of internal...

...Salem H. Abdelgader; Marzena Kurpinska; Hakim Salem Abdelgader; Farzam Omidi Moaf; Mugahed Amran Purpose The research investigates the impact of concrete design methods on performance, emphasizing environmental sustainability. The study compares the modified Bolomey method and Abrams’ law...

...Muhammad Haroon; Raja Bilal Nasar Khan; Anwar Khitab Purpose Present work deals with the partial substitution of cement by waste demolished concrete powder (WDP) for reducing the carbon footprints of concrete. Design/methodology/approach Control specimens and the specimens with 20% WDP...

... concretes to accelerated aging in different cycles of temperature variation (+5 to +40 C°) and humidity (60–98% RH) and on another hand, to determine the effect of exposure to temperature and humidity variation cycles on the durability indicators (of concrete [with and without thermal cure]). Design...

... replacement. Biochars with chlorides and reactive functional groups such as C=C and COOH demonstrate potential for concrete accelerator applications. Such applications will speed up the construction of concrete structures and reduce overall construction time and related costs. Social implications...

...Arka Ghosh; David John Edwards; M. Reza Hosseini; Riyadh Al-Ameri; Jemal Abawajy; Wellington Didibhuku Thwala Purpose This research paper adopts the fundamental tenets of advanced technologies in industry 4.0 to monitor the structural health of concrete beam members using cost-effective non...

...Toni A. Pakkala; Arto Köliö; Jukka Lahdensivu; Matti Pentti Purpose A significant part of Finnish concrete building stock is relatively young. Thus methods to adopt the existing building stock to climate change are needed. To plan and correctly timing the service actions there is a need to study...

... and control pastes. Also, low water/binder ratios and aging reduced water absorption of SB modified cement pastes. Portland cement is a globally accepted binder that is incorporated in concrete and mortars used in the construction of new concrete buildings and infrastructure, as well...

... that electrical resistivity and compressive strength results were smaller for all mixtures with superplasticizer, in comparison with the reference. The focus of this paper is restricted to superplasticizers (SP) and air entrainment admixtures (AEs). Superplasticizers are used in concrete in order to reduce...

...Alan Richardson Recent laboratory research has shown that small additions of monofilament polypropylene fibres in concrete, in diameter range of 22 to 35 micron by 19mm long, reduce the flow of water through the concrete matrix by preventing the transmission of water through the normal modes...

...H.Y. Leung; R.V. Balendran; T. Maqsood; A. Nadeem; T.M. Rana; W.C. Tang Fibre reinforced polymer (FRP) materials are currently used for concrete structures in areas where corrosion problems are serious. Recent applications of FRP rebars in normal reinforced concrete structures in fact cannot fully...

... © MCB UP Limited 2003 --> Concrete Cullet Research Concrete ideas for waste glass Keywords: Concrete, Cullet, Research The Waste Resources Action Programme (WRAP) and the University of Sheffield,in collaboration with some 25 industrial partners, have funded...

...Anthony Mills; Peter Ashford The cost of concrete ground‐supported floor slabs represents a significant proportion of the total capital cost of industrial projects. There are many structural design issues that impact on the concrete contractors’ method of construction. This is becoming more...

...H.Y. Leung This paper aims to study the effect of external glass fibre reinforced polymer (GFRP) plates on the flexural and shear behaviour of structurally deficient reinforced concrete (RC) beams, a total of ten 180mm×250mm×2,500mm beams, including over‐designed, unplated under‐designed and plated...

...R.V. Balendran; T.M. Rana; T. Maqsood; W.C. Tang The inclusion of pozzolans like pulverised fuel ash (PFA), silica fume (SF) and metakaolin (MK) enhances the properties of concrete both in fresh and hardened states. In the case of high performance concrete (HPC), their role in enhancing...

... Concrete Repairs Concrete repair - poor specification warning Keywords: Concrete, Repairs The Concrete Repair Association reports that in the growing market for concrete repairs, the importance of a well written specification is often overlooked. Specifications should...

... A new edition of Concrete Society Technical Report 30 draws on the results of recent extensive research by the Society. The research into the relative reactivities of aggregates and aggregate combinations, levels of alkali in the concrete needed to produce a damaging reaction...

...R.V. Balendran; H.W. Pang; H.X. Wen This paper offers a brief review of the present use of scanning electron microscopy (SEM) in concrete studies, from the perspective of how research in materials science is translated into applications in construction engineering. It describes the scope of present...

... Concrete Damp So far in this series we have seen that ground‐bearing floors in buildings before 1937 would rarely have any DPM. In some modernisation or renovation schemes in such cases there may be a need to replace the existing ground‐supported or suspended ground floor in an old building...

...Margo Cole In March, Construction Minister Nick Raynsford officially launched the biggest and most ambitious concrete research programme in the world. The European Concrete Building Project involves the construction of four full‐scale concrete frame buildings at the BRE Large Building Test Facility...