Construction and Building Materials articles from October 2008

Construction and Building Materials archives from October 2008

Experimental and numerical analysis of RC two-way slabs strengthened with NSM CFRP rods.(carbon fibre reinforced polymers)(reinforced concrete)(near surface mounted)
October 1, 2008... Abstract The use of near surface mounted (NSM) fibre reinforced polymer (FRP) is a promising technology for increasing flexural strength of reinforced concrete (RC) members. This paper deals with strengthening of RC two-way slabs with NSM...

Mechanical expectations of a high performance concrete based on a polymer binder and reinforced with non-metallic rebars.
October 1, 2008... Abstract A high performance concrete, known as polymer concrete, made up of natural aggregates and an orthophthalic polyester binder, reinforced with non-metallic bars (glass reinforced polymer) has been studied. The material is described...

Bond strength of hot-dip galvanized hooked bars in high strength concrete structures.
October 1, 2008... Abstract In 2001, a multi-phase research program was started at the American University of Beirut (AUB) to evaluate the effect of steel galvanizing on bond strength of reinforcement in concrete structures. This paper reports on the fourth...

The effect of cover thickness on rebars exposed to elevated temperatures.
October 1, 2008... Abstract In this study, the mechanical properties of structural rebars have been investigated after exposure of elevated temperatures. The mortar was prepared with CEM I 42.5N cement and fired clay. The S 420a, [empty set]16 mm ribbed...

Durability of concrete incorporating GGBS activated by water-glass.(Ground granulated blastfurnace slag)
October 1, 2008... Abstract The environmental concerns related to the production of cement in terms of the energy consumption and the emission of C[O.sub.2] lead to the search for more environmentally viable alternatives to cement. One of those alternative...

Diversifying two-stage mixing approach (TSMA) for recycled aggregate concrete: [TSMA.sub.s] and [TSMA.sub.sc].
October 1, 2008... Abstract Recycling demolished concrete as recycled aggregate can be applicable to most construction applications. Lower-grade applications, including sub-base and roadwork, have been practicing in many countries; however, higher-grade...

Cement-lateritic gravels mixtures: microstructure and strength characteristics.
October 1, 2008... Abstract Microstructure of cement-lateritic gravels mixes, containing up to 8 wt% cement, was investigated by means of X-ray diffraction, infrared spectrometry, differential thermal analysis, scanning electron microscopy and energy...

Experimental identification of a multi-span masonry bridge: the Tanaro Bridge.
October 1, 2008... Abstract The Tanaro Bridge, an 18 span masonry bridge built in 1866, has been investigated both in service conditions and at different stages of its demolition. A comparative characterization of the brickwork was performed by means of...

Performance evaluation and strengthening of concrete structures with composite bracing members.
October 1, 2008... Abstract Steel bracings, in different geometrical forms, are commonly used in steel and concrete structures. The lateral stiffness of structures with concentric bracings depends on the buckling capacity of compressive bracings; in turn,...

Investigation of rheological and fatigue properties of asphalt mixtures containing polyester fibers.
October 1, 2008... Abstract The effects of polyester fiber on the rheological characteristics and fatigue properties of asphalt and its mixture are investigated in this paper. The viscosity, rheological and fatigue tests are conducted to characterize such...

Mechanical and thermal properties of lime and hemp concrete ("hempcrete") manufactured by a projection process.
October 1, 2008... Abstract Concrete blocks, made of a mixture of lime and hemp shives (also called "hemp hurds"), have been manufactured by a recently developed projection process. Lime carbonatation kinetics is determined by X-ray diffraction. Density...

Performance of lightweight concrete with silica fume after high temperature.
October 1, 2008... Abstract In this study, the effect of silica fume on compressive and splitting tensile strength of lightweight concrete after high temperature was investigated experimentally and statistically. The mixes incorporating 0%, 10%, 20% and 30%...

Analysis of the CFRP flexural strengthening reinforcement approaches proposed in Fib bulletin 14.(carbon fiber reinforced plastic)
October 1, 2008... Abstract The main aim of this article is to evaluate, argue and criticise the design models and methods concerning the use of CFRP external flexural strengthening of concrete structures proposed in Fib bulletin 14--Task Group Fib TG9.3...

Fast curing PF resin mixed with various resins and accelerators for building composite materials.(phenol-formaldehyde)
October 1, 2008... Abstract The objective of this research is to investigate the fast curing effect of phenol-formaldehyde (PF) resin by employing three methods: mixing with novolac phenol-formaldehyde, adding amino-based resin and the use of accelerators....

Properties of poly methyl methacrylate mortars with unsaturated polyester resin as a crosslinking agent.
October 1, 2008... Abstract This study dealt with the properties of poly methyl methacrylate (PMMA) mortars using the binders which are made from a methyl methacrylate monomer solution of expanded polystyrene. Unsaturated polyester (UP) resin was used as a...

Calendar.
October 1, 2008... Calendar Event Date and venue Details from 2009 8th World Congress 1-5 June Contact: WCSMO-8 Secretariat, on Structural and LNEC Conference CPM--Centre for...