Paste and mortar studies on the influence of mix design parameters on autogenous shrinkage of self-compacting concrete

Alrifai, Amjad; Aggoun, Salima; Kadri, Abdelkader; Kenaï, Saïd; Kadri, El-Hadj

doi:10.1016/j.conbuildmat.2013.05.024

Cited by 39 publications

(19 citation statements)

References 22 publications

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“…In this study there is no evidence of differences between mix-design with pumice powder and with other filler additives. In [22], Alrifai et al presented a study on autogenous shrinkage showing that self-compacting concrete exhibits a high total shrinkage magnitude, even though results presented in the literature are conflicting, due to the variability of admixtures. From Fig.…”

Section: Mixturementioning

confidence: 95%

Pumice powder as filler of self-compacting concrete

Granata

2015

Construction and Building Materials

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Section: Mixturementioning

confidence: 95%

Pumice powder as filler of self-compacting concrete

Granata

2015

Construction and Building Materials

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“…This selection of these mixes is justified by the fact that concretes and corresponding mortars can engender kinetically identical deformation. [23] Furthermore, the mortar mixes used to minimize the number of the concrete tests. In addition, the geometry of the mortar device allows us to study the propagation of cracking length over time.…”

Section: Experimental Investigationmentioning

confidence: 99%

The influence of bleeding, extra water and superplasticizer on the SCC plastic shrinkage cracking: case of hot weather

Yakoubi

Aggoun

Aider

et al. 2016

Journal of Adhesion Science and Technology

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a laboratory of experimental and numerical Modelling of Materials and structures in civil engineering (laMoMs), university Mouloud Mammeri of Tizi ouzou, Tizi ouzou, algeria; b l2Mgc, cergy-Pontoise university, cergy-Pontoise, france; c laboratory of Materials and durability of constructions (lMdc), university Mentouri of constantine, constantine, algeria ABSTRACT Self-compacting concrete (SCC) is a new material able to be put in place without vibration. However, this advantage is offset by some drawbacks, such as plastic shrinkage, one of the causes of cracking in concrete. Furthermore, the presence of fines absorbs a large amount of water and therefore minimizes bleeding. This paper endeavours to provide a better understanding of the appearance of plastic shrinkage cracking, and to justify his relation with bleeding phenomena. Five SCC formulas with different W/C ratios were prepared and compared to the same range of ordinary concrete (OC) in terms of restrained shrinkage (cracking width). At the same time, a study of cracks' propagation over time (cracking length) was conducted on the equivalent mortars (mOCe, mSCCe). Mixtures were placed in different hot environmental conditions. The results showed that bleeding significantly reduces cracking length and has no effect on cracking width. In the second part, extra water and superplasticizer was proposed as a solution to prevent SCC cracking and findings show the addition of 10% of water reduces cracking length and a slightly lower addition of superplasticizer reduces SCC's crack width.

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“…Several studies have shown the impact of water status on concrete properties. For example, the compressive strength of dry concrete increases by 40-70% compared with saturated concrete [31]. On the other hand, various studies have shown the influence of water status on transfer parameters:…”

Section: Durability Indicatorsmentioning

confidence: 99%

Performance Indicators of Printed Construction Materials: a Durability-Based Approach

Lafhaj

Dakhli

2019

Buildings

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Studying the durability of materials and structures, including 3D-printed structures, is now a key step in better meeting the challenges of sustainable development and integrating technical and economic aspects from the design phase into the execution phase. While digital and robotics technologies have been well developed for construction 3D printing, the material aspect still faces critical issues to meet the evolving requirements for buildings. This research aims to develop performance indicators for 3D-printed materials used in construction regardless of the nature of the material. A general guideline is to be established as a result of this research. Thus, the literature review analyzes traditional durability approaches to construction materials and challenges are identified for potential applications in construction. The results suggest that performance indicators for 3D-printed materials should be checked as printable through an experimental case study. This research could be of interest to researchers, professionals, and start-ups in the construction and materials research fields.

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Paste and mortar studies on the influence of mix design parameters on autogenous shrinkage of self-compacting concrete

Cited by 39 publications

References 22 publications

Pumice powder as filler of self-compacting concrete

Pumice powder as filler of self-compacting concrete

The influence of bleeding, extra water and superplasticizer on the SCC plastic shrinkage cracking: case of hot weather

Performance Indicators of Printed Construction Materials: a Durability-Based Approach

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