Construction and Building Materials articles from April 2007

Construction and Building Materials archives from April 2007

Guest editorial.(International Institute for FRP in Construction)(fiber reinforced polymer)(Editorial)
April 1, 2007... The International Institute for FRP in Construction (IIFC) was formally established in 2003 following a preliminary meeting of experts in the field at the First International Conference on FRP Composites in Civil Engineering (CICE 2001) held in...

A generic design approach for EB and NSM longitudinally plated RC beams.(Report)
April 1, 2007... Abstract There has been much good research on adhesive bonding plates to existing reinforced concrete structures which is now readily available in the form of published books or guidelines. Most of the fundamental and unique failure modes...

Experimental and numerical investigations of bond between CFRP and concrete.
April 1, 2007... Abstract It is known that the bonding failure between concrete and externally bonded CFRP-strips sets in where high shear forces and high bending moments occur. Despite this knowledge, experimental and theoretical studies had been...

Modelling of CFRP-concrete shear-lap tests.(carbon fiber reinforced polymers)(Report)
April 1, 2007... Abstract This paper presents a study of the bond characteristics of CFRP bonded on concrete using a wet lay-up method. The study involves implementing an experimental program and developing numerical and theoretical models. Twenty-six...

Cracking behaviour of RC beams externally strengthened with emerging materials.(Report)
April 1, 2007... Abstract This paper presents some experimental results about cracking phenomena of reinforced concrete beams externally strengthened with bonded composite materials. Carbon Fibre Reinforced Polymers (CFRP) laminates or steel (SRP) tapes...

Preliminary experimental investigation of the fatigue bond behavior of CFRP confined RC beams.(Report)
April 1, 2007... Abstract This paper presents the results of the first phase of a study on the effect of the confinement provided by transverse carbon fiber reinforced polymer (CFRP) sheets on the fatigue bond strength of steel reinforcing bars in concrete...

Response of CFRP-strengthened beams under fatigue with different load amplitudes.(Report)
April 1, 2007... Abstract Extensive experimental studies have been conducted and proved the efficiency of bonding fibre-reinforced polymers (FRPs) systems on structural elements such as reinforced concrete (RC) beams. However, the scarcity of experimental...

Flexural behavior of aged prestressed concrete girders strengthened with various FRP systems.(Report)
April 1, 2007... Abstract Many prestressed concrete bridges are in need of upgrading in order to increase their posted capacities. Departments of transportation across the country have been faced with large financial burdens on the maintenance budget,...

Time-dependent behaviour of concrete beams pretensioned by carbon fibre-reinforced polymers (CFRP) tendons.
April 1, 2007... Abstract Due to its non-corrosive and high tensile strength properties, carbon fibre-reinforced polymers (CFRP) has attracted researchers' interests worldwide to investigate the feasibility and effectiveness of using CFRP as reinforcements...

A strain-based index for monitoring laminates of FRP-strengthened beams.(fibre reinforced polymer)(Report)
April 1, 2007... Abstract Carbon fibre reinforced polymer (FRP) laminates are increasingly being used to strengthen reinforced concrete beams. Monitoring the integrity of the adhesive bond between the laminate and the concrete is important to establishing...

Tests and design equations for FRP-strengthening in shear.(Report)
April 1, 2007... Abstract The experimental/analytical study presented herewith arrived at developing a mechanics-based (as opposed to regression- based) model of the shear capacity of reinforced concrete beams, strengthened with externally bonded fibre...

CFRP strengthened openings in two-way concrete slabs--an experimental and numerical study.(carbon fibre reinforced polymers)(Report)
April 1, 2007... Abstract Rehabilitation and strengthening of concrete structures with externally bonded fibre reinforced polymers (FRPs) has been a viable technique for at least a decade. An interesting and useful application is strengthening of slabs or...

Behaviour of FRP-jacketed circular steel tubes and cylindrical shells under axial compression.(Report)
April 1, 2007... Abstract Fibre-reinforced polymer (FRP) jackets have been widely used to confine reinforced concrete (RC) columns for enhancement in both strength and ductility. This paper presents the results of a recent study in which the benefit of FRP...

Strengthening of circular hollow steel tubular sections using high modulus CFRP sheets.(Carbon fiber reinforced polymer)(Report)
April 1, 2007... Abstract This paper describes the behaviour of very high strength (VHS) circular steel tubes strengthened by carbon fibre reinforced polymer (CFRP) and subjected to axial tension. A series of tests were conducted with different bond...

Hybrid FRP-concrete-steel tubular columns: concept and behavior.(hybrid fibre reinforced polymers)(Report)
April 1, 2007... Abstract Hybrid FRP-concrete-steel double-skin tubular columns are a new form of hybrid columns recently proposed by the first author. The column consists of an outer tube made of fiber reinforced polymer (FRP) and an inner tube made of...

Tensile and low cycle fatigue behavior of corroded reinforcing steel bars S400.(Regular Papers)(Report)
April 1, 2007... Abstract The results of an experimental study for assessing the degradation of the tensile properties of reinforcing steel bars grade S400 caused by accelerated laboratory salt spray are presented. Furthermore, low cycle fatigue tests,...

Experimental study of crushed aggregate shape.(Regular Papers)(Report)
April 1, 2007... Abstract Aggregate shape is a key parameter that influences mixtures properties. This paper accounts for a closely controlled experimental program aimed at clarifying the variation of aggregate shape with two parameters, gyratory crusher...

Prediction of rebar profile in a earth retaining RCC structure using cover meter survey.(Regular Papers)
April 1, 2007... Abstract Reinforced concrete retaining walls are generally used for the construction of underground structures, such as coal handling systems, underground subways and railway stations. In some exceptional cases, the retaining walls are...

Crushed aggregate production from centralized combined and individual waste sources in Hong Kong.(Regular Papers)(Report)
April 1, 2007... Abstract Owing to the comprehensive building redevelopment programmes in Hong Kong, there is a huge volume of concrete waste generated that will soon exhaust all the available landfill areas. As such, recycled aggregate is advocated....

Shear strength of recycled concrete beams.(Regular Papers)(Report)
April 1, 2007... Abstract This paper reports on the shear behaviour of concrete made with recycled concrete aggregates. Tests have been performed on recycled aggregates and on two concrete mixes (conventional concrete and recycled concrete with 50% of...

Nail and screw withdrawal strength of laminated veneer lumber made up hardwood and softwood layers.(Regular Papers)(Report)
April 1, 2007... Abstract The objective of this research was to evaluate screw and nail withdrawal strength properties of veneer laminated lumber manufactured from poplar (Populus nigra) and beech (Fagus orientalis L.) in transverse, radial, and tangential...

Thermal isolation and mechanical properties of fibre reinforced mud bricks as wall materials.(Regular Papers)(Report)
April 1, 2007... Abstract Fibre reinforced mud bricks, which are studied in this paper, provide the expected technical performance for the thermal isolation and mechanical properties, according to ASTM and Turkish standards. The mechanical properties of...

The Golden Tower: characterization of its foundations and the underlying soil.(Regular Papers)(Report)
April 1, 2007... Abstract During the last years, the Golden Tower (Seville) has been the object of several studies and researches which have revealed considerable data about its history, architecture, constructive details, characterization of the design...

Calendar.(Calendar)
April 1, 2007... Calendar Date Event and venue Details from 2007 5th International 1-2 March ICCPM/ICCEM 2007 Secretariat Conference on...