... on the traditional sand in underdeveloped nations. The purpose of this paper is to examine the influence of e-waste (0–25%) as an alternate for fine aggregate on the thermal and residual mechanical performance of cement concrete (CC) and geopolymer concrete (GC) mixes exposed to elevated temperatures following...

...Saeed Rashidian; Masoud Ziaei; Reza Esmaeil Abadi Purpose This paper aims to investigate the thermal behavior of concrete containing propylene fibers (0.05, 0.075 and 0.1%) and micro-silica (5, 10 and 15% of cement weight). Design/methodology/approach A concrete mix is designed to gain 40 MPa...

...M. Manjunatha; N. Suresh; Vivek Bindiganavile; Vadiraj Rao; Sanjay Shivaswamy Purpose The aim of the current study is to inspect the influence of high temperatures on the compressive and split-tensile-strength (STS) of concrete mixtures produced by replacing natural river sand with waste-foundry...

...Tulio Coelho; Sofia Maria Carrato Diniz; Francisco Rodrigues Purpose To evaluate the temperature-dependency of the Young’s and shear moduli of concrete after exposure to moderately elevated temperatures using the non-destructive impulse excitation technique (IET). Design/methodology/approach...

...Marcus Achenbach; Guido Morgenthal Purpose The design check regarding the fire resistance of concrete slabs can be easily performed using tabulated values. These tables are based on experimental results, but the level of safety, which is obtained by this approach, is not known. On the other hand...

...Sweety Poornima Rau Merugu; Manjunath Y.M. Purpose This study aims at designing consistent and durable concrete by making use of waste materials. An investigation has been carried out to evaluate the performance of conventional and optimal concrete (including 5% GP) at high temperatures...

...Matt Ghiji; Paul Joseph; Maurice Guerrieri Purpose In the present article, the authors have conducted a review on some of the recent developments given in the literature pertaining to the passive protection of concrete structures using intumescent coatings. Here, the main thrust is placed...

... of concrete (George and Tian, 2012). It could be calculated according to Eurocode depending on the used aggregate type from theses equations. For siliceous concrete: (7) ε t h = { − 1.8 × 10 − 4 + 9 × 10 − 6 T + 2.3 × 10 − 11 T 3   for   20...

...N. Suresh; Manjunatha M. Purpose The purpose of this paper is to investigate the effect of elevated temperature on mechanical and physical properties of concrete specimens obtained by substituting the river sand with copper slag (CS) at proportions of 25%, 50%, 75% and 100%. The specimens were...

...Sachin V.; N. Suresh Purpose Concrete is a widely used construction material which can be prepared using locally available resources (aggregates, cement and water) by following relevant standard guidelines. The residual properties of concrete determined by heating in an electric furnace may...

... of structures are not explicitly considered. In this context, a probabilistic framework is presented to investigate the vulnerability of a reinforced concrete (RC) members and structure under fire loading scenario. Design/methodology/approach The RC structures exposed to fire are modeled in a finite element...

...Eva Lubloy Purpose The aim of the research was to investigate the effect of concrete strength on the fire resistance of structures. At first, it may seem contradictory that higher concrete strengths can decrease the fire resistance of building structures. However, if the strength of the concrete...

...Ola Bakr Shalby; Hala Mohamed Elkady; Elsayed Abdel Raouf Nasr; Mohamed Kohail Purpose Nano-Clay (NC) is reported as a candidate partial replacement for cement, due to its abundance and relatively low cost - beside reported promotion of different concrete properties. On the other hand, Steel...

...Richard Walls; Celeste Viljoen; Hennie de Clercq Purpose This paper aims to provide a parametric investigation into the behaviour of steel, concrete and composite beams exposed to fire. This investigation gives insight into the structural behaviour of elements experiencing thermal and mechanical...

... garnet as a sand replacement in high-strength concrete at room and elevated temperatures. Bonding of the concrete containing spent garnet and reinforcing rebar is investigated. Moreover, the optimum thickness of concrete cover subjected to elevated temperatures is investigated. Design/methodology...

...Tiago A. de C. Pires; João Paulo C. Rodrigues; Jose J.R. Silva Purpose Nowadays, circular concrete-filled tubular (CFT) columns are largely used in construction because of structural and architectural advantages such as high load bearing capacity and aesthetic appearance. The behavior of CFT...

...Duncan Cree; Prosper Pliya; Mark F. Green; Albert Noumowé Purpose The purpose of this paper is to evaluate high strength concrete (HSC) containing polypropylene fibers (PP-fibers) at high temperature under a compressive load. Design/methodology/approach The use of PP fibers in HSC is known...

...Mark Green; Kevin Hollingshead; Noureddine Bénichou This paper considers the fire performance of concrete beams and columns that have been strengthened with fibre reinforced polymers (FRPs). Results from four recent full-scale tests are presented. A newly developed type of insulation was employed...

...Rabah Hammoud; Rachid Boukhili; Ammar Yahia A numerical model to simulate the impact of high temperature on the behavior of conventional concrete under chemoplastic framework is developed and validated. The model is based on new formulation of a constitutive law with new chemoplastic potential...

... and modelling concrete behavior under extreme environmental conditions is instrumental in making concrete structures safer and more efficient. To this end, the hot and residual properties associated with the exposure to high temperature, fire and thermal shock are treated in this paper. Reference is made...