Measurements and modeling of cement base materials deformation at early age: The case of sulfo-aluminous cement

Le-Bihan, Tina; Georgin, Jean‐François; Michel, Marie; Ambroise, J.; Morestin, Fabrice

doi:10.1016/j.cemconres.2012.04.004

Cited by 15 publications

(9 citation statements)

References 28 publications

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“…Many studies have already been performed on the subject by researchers examining the calcium aluminate based binders. Particularly in the case of sulphoaluminate cement [11,12], a modelling approach was proposed in the aforementioned studies to describe the chemohydric-mechanical behaviour of the cement-based material at an early age. In this study, the behaviour of CAC cement was investigated.…”

Section: Introductionmentioning

confidence: 99%

Hydration modelling of an ettringite-based binder

Georgin

Prud’Homme

2015

Cement and Concrete Research

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Section: Introductionmentioning

confidence: 99%

Hydration modelling of an ettringite-based binder

Georgin

Prud’Homme

2015

Cement and Concrete Research

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“…Mortar and concrete are porous materials, which are susceptible to volume variations due to shrinkage during hydration and drying. In particular, the development of cement based selfleveling mortars still limited because of problems such as cracking or warping of corners [8,9]. These cracks are caused by shrinkage occurring from drying.…”

Section: Introductionmentioning

confidence: 99%

Effect of the Residual Fine Elements and Contribution on Fresh Properties of Self-Leveling Mortars

Carvalho¹,

Rocha²,

Cheriaf³

2018

Proceedings of the 4th Brazilian Conference on Composite Materials

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The self-leveling mortar is a fluid product that has as a low viscosity and high fluidity. This building material that requires no vibration and leveling, having very low thickness (30 mm). The purpose of this study is to evaluate fresh properties of self-leveling SLU using three byproducts: bottom-ashes, fine elements of quarry limestone and fine elements from recycledconcrete-waste. Portland Cement OPC was partially replaced by 0,10, 15 e 20% of fines. The water/binder was maintained constant at 0.50 and mix proportion 1:2 cement and sand (by weight) was used. Fresh properties were examined: plastic shrinkage, curling and heat measurements using a semi-adiabatic calorimeter. A superplasticizer (polycarboxylate) was used to assure a fluidity. During drying (HR=50%) a mass loss was monitored. To the same cement content fine from bottom-ash acted efficiently to reduce a shrinkage. The curling phenomenon is high, with more than 1.70 for mortars based on fine from recycled-concretewaste. Higher early curling was obtained for mortars with quarry limestone. A good performance could be assured with ternary mixes with bottom ashes (curling less than 8mm). Self-leveling mortar systems with more than 20% of fine resulted negative effect on segregation and bleeding, so not recommended to self-leveling mortar purposes.

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“…For shrinkage compensated concrete can be used organic expanding components in an amount of 0.5-2% [12][13][14][15]. More widespread has expanding mineral supplements, the application of which produce products of hydration and cause the expansion of the system and increase the strength of the cement stone.…”

Section: Introductionmentioning

confidence: 99%

Possibilities of using aluminate cements in high-rise construction

Kaddo

2018

E3S Web Conf.

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The article describes preferable ways of usage of alternative binders for high-rise construction based on aluminate cements. Possible areas of rational use of aluminate cements with the purpose of increasing the service life of materials and the adequacy of the durability of materials with the required durability of the building are analyzed. The results of the structure, shrinkage and physical and mechanical properties of concrete obtained from dry mixes on the base of aluminate cements for self-leveling floors are presented. To study the shrinkage mechanism of curing binders and to evaluate the role of evaporation of water in the development of shrinkage was undertaken experiment with simple unfilled systems: gypsum binder, portland cement and «corrosion resistant high alumina cement + gypsum». Principle possibility of binder with compensated shrinkage based on aluminate cement, gypsum and modern superplasticizers was defined, as well as cracking resistance and corrosion resistance provide durability of the composition.

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Measurements and modeling of cement base materials deformation at early age: The case of sulfo-aluminous cement

Cited by 15 publications

References 28 publications

Hydration modelling of an ettringite-based binder

Hydration modelling of an ettringite-based binder

Effect of the Residual Fine Elements and Contribution on Fresh Properties of Self-Leveling Mortars

Possibilities of using aluminate cements in high-rise construction

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