..., structural‐ and pavement‐grade portland cement concrete (PCC) mixtures were developed using crushed recycled brick masonry from a demolition site as a replacement for conventional coarse aggregate. Prior to developing concrete mixtures, testing was performed to determine properties of whole clay brick...

...Nigel Craig; James Sommerville; Antoinette Charles Purpose This paper is a continuation of “No‐fines concrete in the UK social housing stock: 50 years on” published in Issue 4 of Volume 29 of this journal. It identifies the thermal performance of existing, un‐refurbished no‐fines concrete (NFC...

... performance, during refurbishment. The research aims to investigate the potential for enhanced flexural strength and toughness in concrete beams, which may be required for change of use of buildings, where loadings may be subject to change. Buildings in earthquake zones may also benefit from additional...

...Giovanna Concu; Barbara De Nicolo; Luisa Pani Purpose This paper aims to report a case study regarding the combined use of several non‐destructive techniques (NDTs) as a tool in the management of diagnosis and refurbishment of a damaged reinforced concrete building. Design/methodology/approach...

...Alan Richardson; Pierre Allain; Maxime Veuille Purpose A current trend is to use waste and by‐products in concrete to replace binders and aggregates. This trend reduces the impact on the environment and the use of finite natural resources. This paper aims to investigate whether concrete which...

...Alan Richardson Purpose The purpose of this paper is to show how the investigation into early strength gain of concrete will allow the contractor to speed up the construction process using in situ concrete, which will affect subsequent time and cost savings. If a medium dose...

...Shibli R.M. Khan; J. Noorzaei; M.R.A. Kadir; A.M.T. Waleed; M.S. Jaafar Purpose This paper aims to present a research finding that establishes a regression model between ultrasonic pulse velocity (UPV) tests and actual strength of high performance concrete (HPC). Design/methodology/approach...

... effective in producing toughness and residual strength when directly compared with the performance of structural polypropylene fibre reinforced concrete. Where polypropylene fibre reinforced concrete did have an advantage over the steel reinforced concrete was when I₂₀ was exceeded...

...Alan E. Richardson Purpose Conflicting claims have been made in relation to the effects of polypropylene fibres on the compressive strength of concrete. The purpose of this paper is to examine the effects on compressive strength of various dosages of monofilament polypropylene fibres when used...

... to vibrations in a steel‐reinforced concrete beam. Findings The research clearly shows that it is possible to evaluate modes and components separately by using the wavelet analysis. Originality/value The beam analysed can be used as a simple model of other more complicated structures, such as bridges...

... and built before 1960 and these were subsequently designated as inherently defective under the Housing Defects legislation. Design/methodology/approach The research involved several years of investigation during which many different types of pre‐cast concrete, in situ‐concrete, steel...

... polypropylene fibre additions when compared to grout without fibre additions. The grout with fibre additions suggests a reduced probability of water and ion transmission, due to higher measured resistivity, which will result in enhanced durability and lower life cycle costs. Durability of reinforced concrete...

...H.Y. Leung In this study, tests were conducted to investigate the effect of different concretes on the behaviour of reinforced concrete beams with central splices. Five beam specimens were prepared using different concrete mixes in their splice regions. Experimental results indicated that the bond...

...A.E. Richardson From recent laboratory research monofilament and fibrillated polypropylene fibres were used in structural concrete and have been tested against 150 freeze/thaw cycles. The findings show monofilament fibres to play a significant role in protecting the concrete matrix against...

...H.Y. Leung; R.V. Balendran Use of fibre‐reinforced polymer (FRP) composite rods, in lieu of steel rebars, as the main flexural reinforcements in reinforced concrete (RC) beams have recently been suggested by many researchers. However, the development of FRP RC beam design is still stagnant...