Early-age thermal crack control in concrete


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State of the Art Report of the RILEM Technical Committee 254-CMS

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Library Catalogue

SearchWorks Catalog Stanford Libraries. Early-age thermal crack control in concrete. Responsibility P B Bamforth. Physical description p. Online Available online. Full view. SAL3 off-campus storage.

Research Articles | Challenge Journal of Concrete Research Letters

Stacks Request Library has: 1 v. More options. The initial part of the chapter Sect. The final part of the chapter Sect. Prediction of cracking by autogenous, drying shrinkage and thermal strain requires the knowledge of the development of mechanical properties.

The main objective of this chapter is to describe the evolution of the mechanical properties, i. Mechanisms and experimental evidences are given thereafter. The influence of mix design, aging, stress level, cracking, etc. However, evolution of properties regarding interfaces in the case of prestress concrete, for instance, is not discussed bond behavior.

CIRIA Report: Early-Age Thermal Crack Control in Concrete - Civil Engineering Community

This chapter has strong interactions with the other chapters regarding the modeling Chap. In this chapter, the nature, the physical and chemical properties and the content of the concrete constituents will be discussed for the understanding of the way of making an optimized mixture proportioning of the concrete for massive applications where the temperature rise must be minimized. Temperature rises are definitely one of the most important driving forces for thermal cracking in mass concrete, together with the restraint to deformation.

Therefore, amongst the most widespread measures that can be taken to minimize the risks of thermal cracking, the temperature control of concrete since its production and throughout construction is of utmost significance. Following Chap.

RAM - Crack width and shrinkage

Miguel Azenha, Ioannis P. This chapter deals with the problem of modelling the behaviour of massive concrete structures. This chapter presents two distinct groups of models. The first group covers deterministic models starting from the simplest ones, which consider simply the thermo-chemo-mechanical behaviour of the material, to more sophisticated approaches which consider also the fluid phases; i.


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In this first part, a specific section is dedicated to mechanical behaviour modelling considering damage of the material, plasticity, etc. The second group of the models takes into consideration stochastic nature of cracking.

Supplement

These models are formulated specifically for giving a detailed information about cracks spacing and opening in concrete structures in service life conditions. Ideally, multiple sensors will be placed in various areas of your slab centre, peripheral, etc.

Once aware of the temperature, there are different actions which can be taken in order to control the temperature of the slab. Misting the slabs, providing shade, and placing the concrete at different times of the day are all methods of reducing heat exposure from sun radiation. Optimising your concrete mix can also help reduce Thermal Cracking. Adjusting the amount of portland cement, or water, for instance, can actively reduce the heat of hydration.

The Importance of Temperature. Measuring temperature is not only useful for the prevention of Thermal Cracking, but can be used for a myriad of other useful processes. If you are already measuring temperature, for any reason, be sure to see how you can leverage that to save time on other on-site processes. Sign in. Get started.

Early-age thermal crack control in concrete Early-age thermal crack control in concrete
Early-age thermal crack control in concrete Early-age thermal crack control in concrete
Early-age thermal crack control in concrete Early-age thermal crack control in concrete
Early-age thermal crack control in concrete Early-age thermal crack control in concrete
Early-age thermal crack control in concrete Early-age thermal crack control in concrete
Early-age thermal crack control in concrete Early-age thermal crack control in concrete
Early-age thermal crack control in concrete Early-age thermal crack control in concrete

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