Frank Papworth

Frank Papworth
Belgian Ceramic Research Centre | BCRC · Concrete Durability

About

24
Publications
18,357
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79
Citations
Citations since 2017
5 Research Items
38 Citations
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20172018201920202021202220230246810
20172018201920202021202220230246810
20172018201920202021202220230246810

Publications

Publications (24)
Article
Durability design and service life modeling of concrete structures rely on environmental exposure classes based on the prevailing deterioration mechanisms. International standard environmental exposure classes, for example,those found in the fib Model Code 2010 and ISO 22965-1:2007 are predominantly based on European environmental conditions. Altho...
Data
Maturity testing can provide insitu concrete strength, as affected by insitu temperature, at any time during the early curing process whereas field or laboratory cylinder strengths may under or overestimate insitu strengths and can only be measured if sufficient cylinders are available. Maturity testing was developed to prevent stripping too early...
Conference Paper
In 2016, the CIA withdrew its 2002 publication Z11 on 'Evaluation of Concrete Strength by Testing Cores' from use. This was primarily because CSTR 11, on which it is substantially based, has been withdrawn. With improvements in global understanding of how best to predict in-situ concrete strength over time and the publication of more modern methods...
Conference Paper
Full-text available
This paper presents a review of some of the techniques commonly used to assess reinforced concrete structures. It describes some appropriate approaches to analysis and some problematic issues by reference to various projects. Techniques discussed are: • Cover distribution. Widespread rapid scan cover measurements enables relatively accurate assessm...
Conference Paper
Full-text available
The Duracrete carbonation and chloride models (Duracrete, 1998) were first published as a model code in fib Bulletin 34 and have now come firmly into the public domain with the same models publication in ISO 16204 and fib Model Code 2010. These models are complex and have a raft of inputs that although reasonably well defined in fib 34 there are st...
Conference Paper
Full-text available
: Although cathodic protection (CP) systems for above ground structures have been used for over 30 years in Australia many designers and contractors still consider it a complex and expensive method and do not properly consider the life cycle cost savings, better structural outcome or improved performance and repair reliability that cathodic protect...
Conference Paper
Full-text available
Applicators often have limited exposure to the background behind broadly applicable criteria of reinforcement corrosion tests. Hence frequently testing is not being used to full benefit and is sometimes used incorrectly giving misleading assessments and incorrect remedial specification. This paper presents a review of some of the techniques commonl...
Conference Paper
Full-text available
Although cathodic protection (CP) systems for above ground structures have been used for over 30 years in Australia many designers and contractors involved in small to medium sized concrete repair projects consider it a complex and expensive method and give it no consideration for projects they man-age. Hence on many projects no consideration is gi...
Conference Paper
Full-text available
ABSTRACT: fib Model Code 2010 has introduced various methodologies for treating durability design as a whole of life requirement. The Concrete Institute of Australia (CIA) committee on durability has used the Model Code as a background for producing seven recommended practice notes that detail many of the requirements for ensuring durability is ach...
Conference Paper
Full-text available
The strength of concrete in a new structure is sometimes called into question. This may be due to cylinders not being taken, poor cylinder production, transport or testing, the actual concrete strength being low or the suspicion that in-situ cylinders are not representative of in-situ concrete. Whatever the reason testing of the in-situ concrete is...
Conference Paper
Full-text available
Seawater penetration around the perimeter of a basement was leading to premature reinforcement corrosion in the boundary walls, adjacent internal beams, columns and slabs. An investigation was undertaken to determine the extent of repairs and develop a suitable repair approach. A key issue was that these repairs early in the life of the structure h...
Article
Concrete pavements and slabs play a daily role in the quality of our lives. Concrete inspection and maintenance is an on-going concern for society. The demand for limited resources to maintain these extremely important structures means that improvements in efficiency of inspection are the only way to reduce the pressure. New and novel technologies...
Conference Paper
Full-text available
Synopsis: This paper outlines how the use of high performance self compacting concrete incorporating supplementary cementitious materials was used to provide major commercial and environmental benefits on the construction of a bridge using T-Roff beams. Concrete made with a blend of Portland cement, geothermal silica, and fly ash, has for some time...
Article
Full-text available
The concrete durability design of desalination plants needs to take account of the high consequence of premature failure, the novel exposure situations, the rapid design and construction and the inadequacy of national standards in regards desalination plants. The combination of inadequate standards and higher risk means a high emphasis must be plac...
Article
The provision of sufficient cover thickness is a fundamental aspect of preventing corrosion of steel reinforcement. Arguments range over concrete quality specification, formula for calculating design life and the definition of design life itself but if cover is not achieved with reasonable consistency, structures will fail prematurely, possibly spe...
Article
Full-text available
Fibre Reinforced Shotcrete (FRS) has been used successfully for ground support for more than twenty years. However, although its use today is widespread globally, the understanding of how it works is limited and application assessment is sub- jective. The introduction of structural synthetic fi- bres introduces additional variables that are also no...
Article
Outlined are four areas of development in high-performance concrete: cathodic protection for control of corrosion; admixtures for high-strength and high-durability concrete; steel fibers to provide toughness for concrete in floors and industrial linings; and controlled permeability formwork for durable concrete.
Article
The planning and inspection procedures used on Total Oil Marine Ltd.'s MCP-01 (manifold compression platform) minimize time spent offshore and ensure that the retrieved information accurately describes the structure's condition. Procedures include preparing a detailed field specification; visual, photographic, and nondestructive inspection photogra...

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