&lt;b&gt;Basalt waste added to Portland cement

Mendes, Thiago Melanda; Guerra, Leonardo; Morales, Gilson

doi:10.4025/actascitechnol.v38i4.27290

Cited by 11 publications

(7 citation statements)

References 23 publications

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“…Basalt also contains vermiculite [(MgFe,Al) 3 (Al,Si) 4 O 10 (OH) 2 ·4H 2 O, ICSD 034812] and palygorskite [(Mg,Al) 2 Si 4 O 10 (OH)·4H 2 O, ICSD 040687]. According to numerous bibliographies [ 10 , 29 , 30 , 31 ], augite is the most common mineralogical phase found in basalts.…”

Section: Resultsmentioning

confidence: 99%

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Effect of Feldspar Substitution by Basalt on Pyroplastic Behaviour of Porcelain Tile Composition

et al. 2021

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This work aims to evaluate the effects of feldspar substitution by basalt on porcelain tile composition with respect to its porosity, flexural strength, and pyroplastic deformation. Three ceramic formulations with different amounts of feldspar substituted with basalt, 50% (C1), 75% (C2), and 100% (C3), were evaluated at three different temperatures, 1200, 1220, and 1240 °C. Specifically, the effect of replacing feldspar with basalt on the pyroplastic deformation of ceramic bodies was analysed using optical fleximetry. The porosity of C1 at 1200 °C was 19.3 ± 2.9%, while that of composition C3 was 22.2 ± 0.7% at 1240 °C. The flexural strength was strongly influenced by the temperature. For C1 at 1200 and 1240 °C, flexural strengths of 11.1 ± 0.6 and 22.2 ± 1.9 MPa, respectively, were obtained. Regarding fleximetry, thermal deformation decreased with an increase in the amount of feldspar substituted with basalt. It was observed that C2 and C3 deformed less at high temperatures than the other combinations of compositions and temperature, probably owing to the lower amount of residual glass phase present during cooling. Compositions with higher substitution amounts of basalt (i.e., C2 and C3) exhibited more stable thermal behaviour than C0.

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Section: Resultsmentioning

confidence: 99%

“…The mineralogical composition of basalt is shown in Figure 3. [10,[29][30][31], augite is the most common mineralogical phase found in basalts.…”

Section: Basalt Characterizationmentioning

confidence: 99%

Effect of Feldspar Substitution by Basalt on Pyroplastic Behaviour of Porcelain Tile Composition

et al. 2021

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“…These two Portland cements CPV-ARI were selected because they have different chemical compositions, mainly in the Ca/Si ratios 2.22 and 3.01 for CPV-V and CPV-I, respectively. In a previous study [6], it was found that the fine (FF) and the coarse fractions (CF) of basaltic filler, showed similar performance when 15 wt.% was added to a Portland CPV-ARI. Silica fume ELKEM 920U (SF), and nano-silicas Akzo Nobel Cembinder 8 (nS 1 ), Cembinder 30 (nS 2 ) and Cembinder 50 (nS 3 ) were used as supplementary cementitious materials (SCM).…”

Section: Materials and Experimental Programmentioning

confidence: 94%

“…Much research has been carried out to obtain new alternative additions, such as basalt [2], marble [3], and granite fillers [4], or red ceramic waste [5]. Mendes et al [6] showed a gain in compressive strength for mixtures containing 2.5 wt.% of basaltic fillers, but for quantities greater than 5 wt.%, the mechanical properties become smaller than to the reference mixture. The use of nano-materials is another way, which can contribute to improve the mechanical performance of cement-based materials.…”

Section: Introductionmentioning

confidence: 99%

Effect of nano-silica on Portland cement matrices containing supplementary cementitious materials

Mendes

Repette

2021

Rev. IBRACON Estrut. Mater.

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For a controlled granulometry, this study evaluates the effect of nano-silica on mechanical and rheological properties, as well in the microstructure of Portland cement matrices containing a fixed amount of supplementary cementitious materials and three different types of cements. The rheological behavior of cement pastes was evaluated by rotational rheometry and mechanical performance was measured througth the compressive strength. The microstructure was analyzed by intrusion mercury porosimetry and scanning electron microscopy. There was an increasing on the viscosity of the cementitious matrices, as a consequence of the reduction in the inter particle separation of these suspensions. The optimum content of nano-silica varied according to Ca/Si ratio of Portland cement matrices containing supplementary cementitious materials. The use of nano-silica allowed to modify the pore size distribution of cementitious matrices. And the structure of nano-silica in cementitious matrices has occurred in layers or agglomerates of nano-particles covered by hydration products.

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“…The handling and incorrect disposal of this residue can generate serious environmental problems, and its accumulation and dispersion directly contaminate the soil and surface waters, and may even deteriorate groundwater through the production of drainage 10 . Due to the fact that there is no commercialization and the commercial value involved is very low, this residue is often stored in the quarries, causing impacts such as air pollution due to the presence of particulate matter, pollution of water bodies caused by drainage of fine materials and also visual pollution of the site 20,9,21 .…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Mechanical Properties of Sealing Mortar with Partial Replacement of Portland Cement by Stone Crusher Waste

et al. 2019

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Civil construction is one segment responsible for major environmental and social impacts. Among its raw materials, Portland cement, which is produced by the burning and subsequent grinding of a composition of clays and limestones. This manufacturing process causes great environmental damage, both by the exploitation of deposits and by the process of clinkering (burning of raw materials), which emits a significant amount of CO 2 in the atmosphere. Therefore, there is a need for research on materials that reduce these impacts on the environment and that can be used by civil construction to the partial replacement of cement. Thus, this research had as objective to produce settlement mortar through the partial replacement of the Portland cement by filler powder, in different proportions and to study its mechanical properties. The results show that the partial replacement of the cement by the residue has acceptable behavior in the mortar.

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<b>Basalt waste added to Portland cement

Cited by 11 publications

References 23 publications

Effect of Feldspar Substitution by Basalt on Pyroplastic Behaviour of Porcelain Tile Composition

Effect of Feldspar Substitution by Basalt on Pyroplastic Behaviour of Porcelain Tile Composition

Effect of nano-silica on Portland cement matrices containing supplementary cementitious materials

Evaluation of Mechanical Properties of Sealing Mortar with Partial Replacement of Portland Cement by Stone Crusher Waste

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