Reuse of Refractory Brick Wastes (RBW) as a Supplementary Cementitious Material in a Concrete

Zeghad, Mohamed; Mitterpach, Jozef; Safi, Brahim; Amrane, Belaid; Saidi, Mohammed

doi:10.3311/ppci.8194

Cited by 14 publications

(15 citation statements)

References 13 publications

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“…According to Figure 1, the substitution of 10% of the cement by the pozzolan has a beneficial effect on the mechanical performance and displays a clear improvement in the mechanical resistances compared to the control concrete (UHPFC00). This is explained by the fact that the introduction of pozzolana acts on the hydration reactions by pozzolanic reactions of welldispersed cement grains with portlandite ((Ca(OH)2), thus modifying their speed of growth and morphology [11][12][13][14][15].…”

Section: Effect Of Pozzolan On the Mechanical Performance Of Uhpfcmentioning

confidence: 99%

Durability of Different UHPFRCs, Made from Pozzolan as a Substitute for Portland Cement and Immersed in Two Aggressive Environments of Hydrochloric and Sulfuric Acids

Medjber

Saidi²,

Safi³

2022

Selected Scientific Papers - Journal of Civil Engineering

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The objective of this study is to evaluate the effect of pozzolan on the durability of high-performance fiber concretes in two aggressive environments. For this, prismatic test pieces were made at (0%, 10%, 20%, and 40%) of pozzolan and immersed in two acids, hydrochloric and sulfuric. Then characterizations were carried out, such as the loss of mass, the depth of degradation and the mechanical resistance. The results obtained show that with the substitution rate of pozzolan, the loss of mass and the depth of degradation increase in the two acids, while the mechanical strength increases in hydrochloric acid and decreases in sulfuric acid.

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Section: Effect Of Pozzolan On the Mechanical Performance Of Uhpfcmentioning

confidence: 99%

Durability of Different UHPFRCs, Made from Pozzolan as a Substitute for Portland Cement and Immersed in Two Aggressive Environments of Hydrochloric and Sulfuric Acids

Medjber

Saidi²,

Safi³

2022

Selected Scientific Papers - Journal of Civil Engineering

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“…According to Table 4, dune sand has a beneficial effect on mechanical performance and shows a significant improvement in the bending and compressive strength of the concretes studied compared to the UHPC0 control concrete. This is because the addition of finely ground dune sand affects the hydration reactions by pozzolanic reaction of well-dispersed cement grains with portlandite ((Ca (OH)2), thus modifying their growth rate and morphology [16][17][18][19][20].…”

Section: Effect Of Dune Sand On the Mechanical Performance Of Uhpcsmentioning

confidence: 99%

Durability of ultra-high performance fibered concretes made from local raw materials in two aggressive media of hydrochloric acid and barium sulphates

Farida

Saidi

2021

RRIC/RJCE

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The durability of ultra high performance fiber-reinforced concrete (UHPFC) made from local raw materials has been studied in this manuscript. An experimental study was carried out on the best variants of UHPFC using finely ground dune sand as ultrafine. The UHPFCs studied were developed from Portland cement (PC), dune sand (DS), fine sand (FS), metal fibers (MF) and superplasticizer additive (SP). The results show that it is possible to manufacture a more ductile and durable fiber concrete of 41.96 and 35.28 MPa for flexural tensile and 95.5 and 85.36 MPa for compressive strength for UHPFCs made from dune sand and immersed respectively in two chemical solutions concentrated at 5M hydrochloric acid and barium sulfate for one year. The manufacture of a concrete based on local raw materials with good mechanical properties and durability can reduce the consumption of cement.

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“…For example, one study proposed the use of refractory brick waste as supplementary material in cement for use in concrete. In addition, the use of three types of refractory waste substitutes for silica fume was highlighted, and the performance of refractory-added cement in concrete was found to be satisfactory [25]. Another study demonstrated the use of refractory waste in concrete mortars as an aggregate material to replace one of the aggregates normally used [26].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the use of silica-alumina refractory waste as a supplementary cementitious material

et al. 2021

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The use of supplementary cementitious materials (SMCs) is one of the three essential factors for the sustainability of the cement industry. To reduce CO 2 emissions, several studies have introduced new methods for the utilization of industrial wastes such as the addition into cementitious materials. The objectives of this study were to chemically and physically characterize refractory ceramic industry waste and determine its viability as an SMC. The pozzolanic characteristics or SMC characteristics of the refractory waste were investigated using standard tests. The results revealed that the refractory waste was mainly composed of Al 2 O 3 and SiO 2 . The mineralogical analysis revealed that the mullite was the major phase of the waste, followed by small amounts of cristobalite and quartz phases. The results of the modified Chapelle test and pozzolanic activity index with lime after 7 days indicated that the waste did not meet the minimum pozzolanicity required by the standard. However, the waste improved the mechanical resistance of the cement specimens containing the waste after 28 days compared with the reference sample, indicating the promising potential of the material for this application. This result indicated that the refractory waste shows a filler type effect, and thus, can be employed as an SCM.

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Reuse of Refractory Brick Wastes (RBW) as a Supplementary Cementitious Material in a Concrete

Abstract: The main purpose of this study is to evaluate the reuse of refractory brick wastes (RWB)

Cited by 14 publications

References 13 publications

Durability of Different UHPFRCs, Made from Pozzolan as a Substitute for Portland Cement and Immersed in Two Aggressive Environments of Hydrochloric and Sulfuric Acids

Durability of Different UHPFRCs, Made from Pozzolan as a Substitute for Portland Cement and Immersed in Two Aggressive Environments of Hydrochloric and Sulfuric Acids

Durability of ultra-high performance fibered concretes made from local raw materials in two aggressive media of hydrochloric acid and barium sulphates

Evaluation of the use of silica-alumina refractory waste as a supplementary cementitious material

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