Effects of experimental ternary cements on fresh and hardened properties of self-compacting concretes

Belaïdi, Akram Salah Eddine; Kenaï, Saïd; Kadri, El-Hadj; Soualhi, Hamza; Benabed, Benchaa

doi:10.1080/01694243.2015.1099864

Cited by 26 publications

(7 citation statements)

References 18 publications

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“…Moreover, for SCGM, the increase in G m and R m with the increase in Vw/Vp was not linear as shown in Fig.6(b). This could be due to the higher viscosity of the alkaline solution, due to which the effect of water on increasing G m and R m was less significant compared to normal SCM.The recommended range of SCM flowability and flow time was in between 250-300 mm and 2-10 seconds, respectively(Belaidi et al 2016). For normal SCM, flow time was quite less, even at lower flowability in comparison to SCGM, as shown in Fig.7.…”

mentioning

confidence: 93%

Mix Design Processing for Self Compacting Geopolymer Mortar

Ghafoor

Fujiyama

Maekawa

2021

ACT

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mentioning

confidence: 93%

Mix Design Processing for Self Compacting Geopolymer Mortar

Ghafoor

Fujiyama

Maekawa

2021

ACT

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“…[8] However, the use of fines assuring cohesiveness of SCC. [9] These new innovative concretes in construction field have the ability to occupy all the space of a highly scrapped formwork, [10] Many comparative studies between both types of concretes were conducted so far, and the literature shows clearly that the SCC shrinkage extent is much higher than that of ordinary concrete (OC). [7] Although many authors argue that, there is no significant difference between behaviour of two concretes towards shrinkage at early age.…”

Section: Introductionmentioning

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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“…The incorporation of mineral admixtures improves fresh and hardened characteristics of SCC. [2,3] In fact, the use of supplementary cementitious materials provides a better workability and cohesiveness by improving the grain size distribution and particle packing. [4] Besides, the using of fine materials having different grain size and morphology enhances the compactness and reduces the risk of cracking relatively to the heat hydration and improves hence the performance of SCC at long term.…”

Section: Introductionmentioning

confidence: 99%

Effects of marble powder as a partial replacement of cement on some engineering properties of self-compacting concrete

Boukhelkhal¹,

Azzouz²,

Belaïdi³

et al. 2016

Journal of Adhesion Science and Technology

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civil engineering laboratory, university of laghouat, laghouat, algeria ABSTRACT Self-compacting concretes (SCC) are highly fluid concretes that can flow and be placed in formwork under their own weight without the requirement of internal or external energy. This fluidity is obtained with the use of high paste volume and superplasticizer. The paste of SCC is made principally of cement, which is the most expensive component of concrete. As a result, the production cost of SCC is higher than conventional concrete. However, to make the manufacture of SCC more practical and economical, the binder is often a binary, ternary even quaternary compound: Portland cement mixed with mineral additions. The primary aim of this work is to study the effect of incorporating the marble powder as a supplementary cementations material on the rheological and mechanical properties of SCC. The fresh properties were measured using the slump flow, J-Ring, V-funnel, and modified slump flow. The properties of hardened SCC such as strengths and ultrasonic pulse velocity (UPV) were determined at age of 3, 28, and 90 days. The results have shown that using of marble powder in SCC enhances their fresh properties. At hardened state, the incorporation of marble powder decreases the mechanical strengths and UPV. It can be noted that it is possible to produce an economical SCC when the cement is partially substituted by the marble powder.

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Effects of experimental ternary cements on fresh and hardened properties of self-compacting concretes

Cited by 26 publications

References 18 publications

Mix Design Processing for Self Compacting Geopolymer Mortar

Mix Design Processing for Self Compacting Geopolymer Mortar

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

Effects of marble powder as a partial replacement of cement on some engineering properties of self-compacting concrete

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