Construction and Building Materials articles from November 2008

Construction and Building Materials archives from November 2008

CBM editorial.(Dr. Amir Mirmiran and Dr. Andrew Boyd)(Editorial)
November 1, 2008... I would like to extend a very warm welcome to our two new North American Regional Editors: Dr. Amir Mirmiran and Dr. Andrew Boyd. [ILLUSTRATION OMITTED] Dr. Amir Mirmiran is professor of Structural Engineering and Interim Dean of the...

Dr. John B. Scalzi, B.S., S.M., Sc.D (1915-2006).(Obituary)(Obituary)
November 1, 2008... [ILLUSTRATION OMITTED] Dr. John B. Scalzi--known universally as Jack Scalzi--was born in Milford, Massachusetts, USA in 1915 and passed away after a short illness on 20th December 2006. Dr. Scalzi graduated B.S. in Civil Engineering...

Thermal stresses on window glasses upon heating.
November 1, 2008... Abstract There are concerns about the fire safety of the glass panes in curtain walled buildings with green or sustainable design. Thermal stresses over the glass panes upon uneven heating in a fire should be investigated and were...

Combustion properties of alder (Alnus glutinosa L.) Gaertn. subsp, barbata (C.A. Mey) Yalt.) and southern pine (pinus sylvestris L.) wood treated with boron compounds.
November 1, 2008... Abstract Samples from alder (Alnus glutinosa L.) Gaertn. subsp, barbata (C.A. Mey) Yalt.) and southern pine (Pinus sylvestris L.) wood were impregnated with boric acid, borax and their mixed solutions according to ASTM D 1413-88 in order...

Nonlinear viscoelastic analysis of unaged and aged asphalt binders.
November 1, 2008... Abstract This paper presents analyses of the nonlinear viscoelastic behavior of unaged and aged asphalt binders tested using a dynamic shear rheometer (DSR) at several temperatures and frequencies. It was not possible to conduct all DSR...

Effect of geogrid in granular base strength--an experimental investigation.
November 1, 2008... Abstract An attempt is made to investigate the change in strength characteristics of different granular base materials reinforced with geogrid. The samples tested were both soaked and unsoaked, with and without geogrid to simulate both the...

Modelling of coupled ion and moisture transport in porous building materials.
November 1, 2008... Abstract In this paper, a physically based model describing the coupled ion and moisture transport is developed by combining existing theories of liquid water and water vapour transport with aqueous electrolyte theory. We derive the set of...

Damage in carbon fiber-reinforced concrete, monitored by both electrical resistance measurement and acoustic emission analysis.
November 1, 2008... Abstract Real time damage detection of concrete structure is becoming more and more critical. In this paper, damage in carbon fiber-reinforced concrete (CFRC) under uniaxial compression and three-point-bending conditions was monitored by...

Effect of dry-shaking treatment on concrete pavement properties.
November 1, 2008... Abstract Although concrete pavements are the preferred solution of contractors for floors in industrial applications, comparatively little research has been done in this field. In this paper, six different experimental pavements with...

Investigations of tungsten mine waste geopolymeric binder: strength and microstructure.
November 1, 2008... Abstract This paper reports some results of a research project related to the development of a new binder using mineral waste mud from the Portuguese mine. Some aspects related to the effect of aggregates in the microstructure and...

Short-term aging characterization of asphalt binders using gel permeation chromatography and selected superpave binder tests.
November 1, 2008... Abstract Both the rolling thin film oven test (RTFOT) and the short-term oven aging (STOA) methods are used in the laboratory to represent the aging of an asphalt binder during plant mixing, transportation and paving. The RTFOT is...

Sorption scanning curves for hardened cementitious materials.
November 1, 2008... Abstract Drying of screeded floor slabs is an important issue for the building industry. However, virtually no attention is paid in prediction models to the hysteresis of sorption isotherms, mainly because of lack of data. Disregarding the...

An investigation into factors affecting the performance of composite controlled permeable formwork liners: Part II--filter medium.
November 1, 2008... Abstract The aim of the filter medium study was to determine the influence that various filter fabrics, fixing methods and reciprocal usage have on the efficiency of air and excess mix water removal from CPF cast concrete. The goal is to...

Development of thin FRP reinforced GFRC permanent formwork systems.(glass fibre reinforced concrete)(fiber reinforced polymer)
November 1, 2008... Abstract The use of GFRC (glass fibre reinforced concrete) permanent formwork is currently limited to relatively short spans due to the material's modest flexural capacity. These limitations can be overcome by reinforcing GFRC with rod...

Carbonation of concrete in relation to C[O.sub.2] permeability and degradation of coatings.
November 1, 2008... Abstract In relation to concrete carbonation as a cause of problems in concrete buildings, we have constructed a diffusion- reaction carbonation model using the finite element method to estimate the depth of carbonation. Input data for...

The effect of high temperature on compressive strength and splitting tensile strength of structural lightweight concrete containing fly ash.
November 1, 2008... In this study, the effect of high temperature on compressive and splitting tensile strength of lightweight concrete containing fly ash was investigated experimentally and statistically. The mixes incorporating 0%, 10%, 20% and 30% fly ash were...

Effects of chrome oxide and limestone filler on the wear characteristics of paste and concretes made with white Portland cement.(Technical Note)
November 1, 2008... Abstract This paper is concerned with the wear characteristics of limestone filler blended white Portland cement paste and concretes with and without chrome oxide. The results indicate that the wear loss in limestone filler blended white...

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