Effect of different amounts of slag on the crystallization behavior of glass-ceramics produced by natural cooling yellow phosphorus slag

Hongpan, Liu; Ma, Liping; Huang, Xiaofeng; Tang, Jianxiao; Yang, Jie

doi:10.1039/c6ra07854k

Cited by 10 publications

(3 citation statements)

References 18 publications

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“…Phosphogypsum has been made into belite-ferroaluminate cement products [2], non-autoclaved aerated concrete [3], backfilling materials [4,5], gypsum products [6], combined additives in cement [7]. Phosphorus slag can also be made into backfilling materials [8], porcelain [9], glass-ceramics [10], spherical-CaCO 3 in the chemical industry [11], cast stone as decorative materials [12], mineral fillers in asphalt binders [13,14], and solidification additives for lead-contaminated soil [15]. However, it is a win-win solution for phosphorus slag to be regarded as the latent SCM (supplementary cementitious material), and thus avoiding environmental pollutions from air storage and CO 2 emissions from cement usage.…”

Section: Introductionmentioning

confidence: 99%

Influence of Phosphorus Slag on Physical and Mechanical Properties of Cement Mortars

et al. 2020

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Influences of phosphorus slag from 10% to 50% (by mass) on the setting time and the water requirement of the normal consistency of cement pastes, flowability, resistance to carbonation, and the compressive strength of cement mortars were investigated. The physical activation by improving fineness and the chemical activation by adding the chemical activator were evaluated by the compressive strength of cement mortars with 30% by mass of phosphorus slag. Hydration heat, X-ray diffraction, and scanning electron microscopy were used to study the microstructure of cement pastes and mortars with 30% by mass of phosphorus slag and the chemical activator. Results showed that the setting time of cement pastes was delayed by phosphorus slag from 10% to 50%. Phosphorus slag had nearly no effects on the water requirement of the normal consistency of cement pastes and the flowability of cement mortars. The resistance to carbonation of cement mortars was decreased by phosphorus slag from 10% to 50% according to the acceleration carbonation. The compressive strength of cement mortars was also decreased by phosphorus slag from 10% to 50% and the low activity of phosphorus slag was concluded based on compressive strength of cement mortars. The effect of the chemical activator on the compressive strength of cement mortars with 30% by mass of phosphorus slag was better than improving fineness of phosphorus slag from 300 m2/kg to 450 m2/kg. Both hydration heat and cement hydrates were inhibited by phosphorus slag and could be partly compensated by the chemical activator. Loose morphology and propagations of microcracks were found in cement pastes and mortars with 30% by mass of phosphorus slag.

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Section: Introductionmentioning

confidence: 99%

Influence of Phosphorus Slag on Physical and Mechanical Properties of Cement Mortars

et al. 2020

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“…The composition of basic glass can be determined according to the phase diagram of the CaO-Al 2 O 3 -SiO 2 ternary system. 11,12 The main components of CaO-Al 2 O 3 -SiO 2 glass-ceramics are listed as follows: SiO 2 45-60 wt%, Al 2 O 3 5-15 wt%, and CaO 15-30 wt%. The auxiliary materials were introduced by chemical-grade drugs, except SiO 2 that is introduced by quartz sand.…”

Section: Composition Of Glassmentioning

confidence: 99%

Highly crystallized glass-ceramics from high content gold tailings via a one-step direct cooling method

Jiang

Ren

et al. 2022

RSC Adv.

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“…Ca 10 (PO 4 ) 6 F 2 +15C+6SiO 2 → 3P 2 +15CO+3Ca 3 Si 2 O 7 +CaF 2 (9) 6CaF 2 +7SiO 2 →3SiF 4 +2Ca 3 Si 2 O 7 (10) CaF 2 +Na 2 O→2NaF+CaO (11) CaF 2 +ZnO→ZnF 2 +CaO (12) Migration and Transformation of Arsenic Fig. 5 shows the distribution of As-containing species in different phases during the preparation of sintered brick.…”

Section: Migration and Transformation Of Fluorinementioning

confidence: 99%

Predicting Gaseous Pollution of Sintered Brick Preparation from Yellow Phosphorus Slag

Ming¹,

Liu²,

Fan³

et al. 2019

Pol. J. Environ. Stud.

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Effect of different amounts of slag on the crystallization behavior of glass-ceramics produced by natural cooling yellow phosphorus slag

Abstract: With the aid of the micrograph images and XRD patterns of glass-ceramics, it was shown that decreasing the amount of slag in glass-ceramics can promote crystallization in CAS systems.

Cited by 10 publications

References 18 publications

Influence of Phosphorus Slag on Physical and Mechanical Properties of Cement Mortars

Influence of Phosphorus Slag on Physical and Mechanical Properties of Cement Mortars

Highly crystallized glass-ceramics from high content gold tailings via a one-step direct cooling method

Predicting Gaseous Pollution of Sintered Brick Preparation from Yellow Phosphorus Slag

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